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Micromaster 4 -- Commissioning and operation -- Applications and parameter descriptions 
MICROMASTER 4 (MM430): Why is it not possible to select option 19 in Parameter P1300 in the MM430 although the Published Parameter list indicates that this is possible? 
MICROMASTER 4 (MM4), SINAMICS G120 (CU2x0x): How can I start my drive with a defined analogue input value? 
MICROMASTER 4 (MM4), SINAMICS G120 (CU2x0x): How do I program sequential operation of different frequencies using free function blocks? 
MICROMASTER 4 (MM430/MM440), SINAMICS G120 (CU 2x0x): Is it possible to control the motor holding brake (MHB) simultaneously with OFF1? 
MICROMASTER 4 (MM430/MM440), SINAMICS G120 (CU2x0x): How do I program a periodic operation check (maintenance- interval circuit), e.g. pump cleaning operation? 
MICROMASTER 4 (MM4), SINAMICS G120 (CU2x0x): How can the displays be scaled so that specific value can be shown? 
MICROMASTER 4 (MM4), SINAMICS G120 (CU2x0x): How do I proceed when parameterizing a "master-slave" drive? 
MICROMASTER 4 (MM4), SINAMICS G120 (CU2x0x): How do I get the analogue output to show 0-20mA for 0-Fmax and also 0-20mA for 0-Fmax in the opposite direction of rotation? (SW below 2.10) 
MICROMASTER 4 (MM4): When sh, SINAMICS G120 (CU2x0x): Could I use P0719 instead of P0700 and P1000 for selecting setpoint and command sources? 
The maximum frequency, P1082, is set higher, but the drive won't run above 50Hz/60Hz. Why? 
MICROMASTER 440 (MM4): Which parameters indicate setpoint, output frequency and motor speed? 
MICROMASTER 4 (MM4): What are the different ways of selecting variable torque operation using P0205, P0500 and P1300? 
MICROMASTER 420 (MM4): Why does my MM420 run up to 60Hz? 
MICROMASTER 440 (MM4): How can I set threshold values on the analogue inputs, and control the reaction of the drive? (MM440 SW above 2.0) 
MICROMASTER 4 (MM4): What are the P1300 parameter settings 5 and 6? 
MICROMASTER 4 (MM4), SINAMICS G120 (CU2x0x): How does the inverter react for the different possible values of the "automatic restart" and what is the delay time between restart attempts? 
MICROMASTER 4 (MM420): Can I scale the value displayed in r0000? 
MICROMASTER 4 (MM4), SINAMICS G120 (CU2x0x): How do I perform a complete factory reset? 

MICROMASTER 4 (MM430): Why is it not possible to select option 19 in Parameter P1300 in the MM430 although the Published Parameter list indicates that this is possible?Go to beginning
Part number:

The MICROMASTER 430 (MM430) inverter is a development of the MICROMASTER 440 (MM440) inverter. The MM430 is intended to be primarily a “pump and fan” inverter, rather than the more complicated and sophisticated MM440 product.

One of the differentiators between the MM430 and the MM440 is Possible Setting Option 19, V/f control with independent voltage setpoint. This option has never been, and was never intended, to be an available option in the MM430.

Unfortunately the Documentation and the STARTER commissioning software for the product does not reflect this actuality. The Parameter List for the MM430 documents option P1300 = 19 as an available option. This is an error in the documentation.

 

MICROMASTER 4 (MM4), SINAMICS G120 (CU2x0x): How can I start my drive with a defined analogue input value?Go to beginning
Part number:

This FAQ applies only to the SINAMICS G120/G120D Control Units without “-2” in the product name and MICROMASTER 4 inverters.  

For a MICROMASTER 440 (MM440) the 0V - 10V setpoint is entered using a potentiometer via analog input 1 (ADC 1).
The ramp-up and ramp-down time is 3 seconds.
The ON/OFF1 command is entered via digital input 1(DIN 1) of the terminal strip.
In order to prevent starting at a high frequency the inverter should only be started if the value at the analog input is < 1V (in this case = 5Hz).

 

Block diagram ADC + DIN (MM440)

 

Function diagram

 

Solution
p0700[3] Selection of command source 2
p0701[0] Function of digital input 1, 1st. Command data set (CDS) 99
p0840[0] BI: ON/OFF1, 1st. Command data set (CDS) r2841.0
p1000[0] Selection of frequency setpoint, 1st. Command data set (CDS) 2
p1040[0] Setpoint of the MOP (input switch-on frequency) 5
p1070[0] CI: Main setpoint, 1st. Command data set (CDS) r1024
p1075[0] CI: Additional setpoint, 1st. Command data set (CDS) r755[0]
p1080[0] CI: Additional setpoint, 1st. Drive data set (DDS) 5.00
p2800 Enable FFBs 1
p2801[0] Activate FFBs, Enable AND 1 1
p2801[9] Activate FFBs, Enable NOT 1 1
p2801[14] Activate FFBs, Enable RS-FF 1 1
p2802[12] Activate FFBs, Enable CMP 1 1
p2810[0] BI: AND 1, Binector input 0 (BI 0) r2886.0
p2810[1] BI: AND 1, Binector input 1 (BI 1) r722.0
p2828 BI: NOT 1 r722.0
p2840[0] BI: RS-FF 1, Binector input: Set r2811.0
p2840[1] BI: RS-FF 1, input: Reset r2829.0
p2885[0] CI: CMP 1, Connector input 0 (CI 0) r1050
p2885[1] CI: CMP 1, Connector input 1 (CI 1) r755[0]

 

( 82 KB )   Einschalten_ADC.zip ( 82 KB )

 

 

MICROMASTER 4 (MM4), SINAMICS G120 (CU2x0x): How do I program sequential operation of different frequencies using free function blocks?Go to beginning
Part number:

This FAQ applies only to the SINAMICS G120/G120D Control Units without “-2” in the product name and MICROMASTER 4 inverters.

Task description: When digital input 1 is energized, the following sequence should be automatically run:

  1. The minimum frequency should (only when switching-on) be approached.
  2. After a time of e.g. 5s, a fixed frequency of 15Hz should be automatically approached.
  3. After another e.g. 5s, a fixed frequency of 30Hz should be automatically approached.
  4. After another e.g. 5s, a fixed frequency of 50Hz should be automatically approached.
  5. Then points 2 – 4 should be automatically executed in the reverse sequence.
  6. The selected fixed frequency should be output at the digital outputs (+/-15Hz = DOUT1; +/-30Hz = DOUT1 & DOUT2; +/-50Hz = DOUT1 & DOUT2 & DOUT 3)

By shutting down the digital input, everything should be reset and the sequence started again from the beginning.



Solution:

This can be implemented by using the free function blocks.
 
p702[0] Function of digital input 2, 1st. Command data set (CDS) 0
p731[0] BI: Function of digital output 1, 1st. Command data set (CDS) r55.0
p732[0] BI: Function of digital output 2, 1st. Command data set (CDS) r55.1
p733[0] BI: Function of digital output 3, 1st. Command data set (CDS) r55.2
p1000[0] Selection of frequency setpoint, 1st. Command data set (CDS) 3
p1001[0] Fixed frequency 1, 1st. Drive data set (DDS) 15.00
p1002[0] Fixed frequency 2, 1st. Drive data set (DDS) 15.00
p1003[0] Fixed frequency 3, 1st. Drive data set (DDS) 20.00
p1020[0] BI: Fixed frequency selection Bit 0, 1st. Command data set (CDS) r2841.0
p1021[0] BI: Fixed frequency selection Bit 1, 1st. Command data set (CDS) r2844.0
p1022[0] BI: Fixed frequency selection Bit 2, 1st. Command data set (CDS) r2847.0
p1070[0] CI: Main setpoint, 1st. Command data set (CDS) r1024
p1080[0] Minimum frequency, 1st. Command data set (DDS) 5.00
p1113[0] BI: Reverse, 1st. Command data set (CDS) r2835.0
p1120[0] Ramp-up time, 1st. Command data set (DDS) 3.00
p1121[0] Ramp-down time, 1st. Command data set (DDS) 3.00
p2155[0] Threshold frequency f_1, 1st. Command data set (DDS) 45.00
p2220[0] BI: Fixed PID setpoint select Bit 0, 1st. Command data set (CDS) r2841.0
p2221[0] BI: Fixed PID setpoint select Bit 1, 1st. Command data set (CDS) r2844.0
p2222[0] BI: Fixed PID setpoint select Bit 2, 1st. Command data set (CDS) r2847.0
p2800 Enable FFBs 1
p2801[0] Activate FFBs, Enable AND 1 Level 1 (1)
p2801[1] Activate FFBs, Enable AND 2 Level 1 (1)
p2801[2] Activate FFBs, Enable AND 3 Level 1 (1)
p2801[3] Activate FFBs, Enable OR 1 Level 1 (1)
p2801[4] Activate FFBs, Enable OR 2 Level 3 (3)
p2801[6] Activate FFBs, Enable XOR 1 Level 1 (1)
p2801[9] Activate FFBs, Enable NOT 1 Level 1 (1)
p2801[12] Activate FFBs, Enable D-FF 1 Level 1 (1)
p2801[14] Activate FFBs, Enable RS-FF 1 Level 1 (1)
p2801[15] Activate FFBs, Enable RS-FF 2 Level 1 (1)
p2801[16] Activate FFBs, Enable RS-FF 3 Level 1 (1)
p2802[0] Activate FFBs, Enable Timer 1 Level 1 (1)
p2802[1] Activate FFBs, Enable Timer 2 Level 1 (1)
p2802[2] Activate FFBs, Enable Timer 3 Level 1 (1)
p2802[3] Activate FFBs, Enable Timer 4 Level 1 (1)
p2810[0] BI: AND 1, Binector input 0 (BI 0) r2852.0
p2810[1] BI: AND 1, Binector input 1 (BI 1) r53.5
p2812[0] BI: AND 2, Binector input 0 (BI 0) r55.1
p2812[1] BI: AND 2, Binector input 1 (BI 1) r55.2
p2814[0] BI: AND 3, Binector input 0 (BI 0) r2867.0
p2814[1] BI: AND 3, Binector input 1 (BI 1) r52.14
p2816[0] BI: OR 1, Binector input 0 (BI 0) r2867.0
p2816[1] BI: OR 1, Binector input 1 (BI 1) r2829.0
p2822[0] BI: XOR 1, Binector input 0 (BI 0) r54.11
p2822[1] BI: XOR 1, Binector input 1 (BI 1) r2868.0
p2828 BI: NOT 1 r54
p2834[0] BI: D-FF 1, Binector input: Set r2815.0
p2834[2] BI: D-FF 1, Binector input: Store pulse r54.0
p2834[3] BI: D-FF 1, Binector input: Reset r2823.0
p2840[0] BI: RS-FF 1, Binector input: Set r2811.0
p2840[1] BI: RS-FF 1, Binector input: Reset r2817.0
p2843[0] BI: RS-FF 2, Binector input: Set r2857.0
p2843[1] BI: RS-FF 2, Binector input: Reset r2817.0
p2846[0] BI: RS-FF 3, Binector input: Set r2862.0
p2846[1] BI: RS-FF 3, Binector input: Reset r2817.0
p2849 BI: Timer 1 r54.0
p2850 Delay time Timer 1 Time
p2854 BI: Timer 2 r55.0
p2855 Delay time Timer 2 Time
p2859 BI: Timer 3 r55.1
p2860 Delay time Timer 3 Time
p2864 BI: Timer 4 r2813.0
p2865 Delay time Timer 4 Time

 

( 82 KB )   Auto_MM4.zip ( 82 KB )

MICROMASTER 4 (MM430/MM440), SINAMICS G120 (CU 2x0x): Is it possible to control the motor holding brake (MHB) simultaneously with OFF1?Go to beginning
Part number:

Task description:


A motor holding brake (MHB) similar function should be parameterized.
For this purpose, analog input 1 should be used as setpoint.
The enable delay is defined to be 5 seconds at 10Hz.
The brake should immediately close and be effective after the OFF1 command or also in the case of a fault (via digital output 1) - and not only when the minimum frequency is reached.

Solution:

The complete solution should be implemented using the freely-assignable blocks.
The frequency of 10 Hz is specified in parameter P1001.
This frequency is therefore used for the time in P2850 (in this case, 5s).
The following should be noted so that the MHB is released at the required frequency: P2155 = P1001 – 0.1 Hz; Resault: “DOUT1-MHB” is released at 9.9Hz.

Parameter settings and STARTER project in the attachment.
 

( 259 KB ) FAQ_MHB_with_OFF1_V1_1_en.pdf ( 259 KB )

Mhb_aus1.zip ( 82 KB )
Written by: Industry Sector, I DT MC CS

MICROMASTER 4 (MM430/MM440), SINAMICS G120 (CU2x0x): How do I program a periodic operation check (maintenance- interval circuit), e.g. pump cleaning operation?Go to beginning
Part number:

This FAQ applies only to the SINAMICS G120/G120D Control Units without “-2” in the product name and MICROMASTER 430/440 inverters.

For some applications, a maintenance circuit is necessary for units such as e.g. pumps or fans that are activated at specific intervals and for a specific time. For example this could be an industrial oven where hot air is drawn-out using a fan.
For this type of application the fan does not have to operate continuously, but must only run for a short time with a minimum frequency and after this time has expired, remain powered-down for a longer period of time.

A possible example is considered in the following.

Example:
For operation without ON command (signals via AI1/AI0**** < 4 V) the interval is as follows:

  • power-up after a 10 minute period of no operation
  • then operate for 30 seconds with a minimum frequency of 15.00Hz
  • then stop for 10 minutes,
  • this sequence is repeated

For "normal" operation (with an ON command and a setpoint) the maintenance circuit should be inactive. However, it should be possible to externally switch-in the maintenance circuit (e.g. using a digital input).
The setpoint is entered via the analog/digital input.
15.00 Hz is set as the minimum frequency.
The frequency inverter is controlled via analog/digital inputs:

  • MM430 and MM440 via digital input 7 - analog input AI1 (p0707)
  • G120 and G120D via analog/digital input AI0 (p0712)

Note:
Signals above 4 V are active, signals below 1.6 V are inactive.

For MM430, MM440 and G120, G120D frequency inverters this task can be implemented using freely-assignable blocks.
The frequency inverter parameterization is as follows:
Function Parameter Description Setting Description
Selection of command source p0700 selects digital command source 2 Terminal
Function DIN1 p0701 selects function 0 DIN1 disabled
Function DIN6 p0706 selects function 99 DIN6/DIN5* = BiCo – the maintenance circuit is externally switched
Function DIN7 p0707 selects function 99** DIN7 = BiCo – the MM430 and MM440 frequency inverters are controlled via DIN7- analog input AI1
Function DIN12 p0712 selects function 99*** Analog/digital input 0 = BiCo – the G120 and G120D frequency inverters are controlled via analog/digital input AI0
ON/OFF1 p0840 allows ON/OFF1 using BICO 2817.0 ON/OFF1 output of OR1
selection of frequency setpoint p1000 selects frequency setpoint sourcx 2 analog
Min frequency p1080 minimum motor frequency 15.00 Minimum frequency = 15.00 Hz
Enable free function blocks (FFB) p2800 activates FFB 1 enabled
activate FFB p2801 enable each FFB individually p2801.0 = 1 activates AND1
p2801.1 = 1 activates AND2
p2801.3 = 1 activates OR1
p2801.9 = 1 activates NOT1
activate FFB p2802 enable each FFB individually p2802.0 = 1 activates Timer1
p2802.1 =1 activates Timer2
AND1 p2810 output is r2811 p2810.0 = 722.5 1st input of the AND1 = externally switches-in the maintenance circuit via DIN6/DIN5*
p2810.1 = 2829.0 2nd input of the AND1 = output of NOT1
AND2 p2812 output is r2813 p2812.0 = r2811 1st input of the AND2 = output of AND1
p2812.1 = 2852.0 2nd input of AND2 = output of timer 1
OR1 p1816 output is r2817 p2816.0 = 722.6** 1st input of the OR1 = digital input 7 – analog input AI1****
p2816.0 = 722.b*** 1st input of the OR1 = analog/digital input AI0****
p2816.1 = r2813.0 2nd input of OR1 = output of AND2
NOT1 p2828 output is r2829 P2828 = 722.6** Input of the NOT1 = digital input 7 – analog input AI1****
P2828 = 722.b*** Input of the NOT1 = analog/digital input AI0****
Timer1 p2849 define input signal Timer1 p2858.0 Input of the timer 1 = NOT output of timer 2
Delay time of Timer1 p2850 defines delay time of Timer1  10.0 10 min.
Mode Timers1 p2851 selects mode 10 switch-in delay (min.)
Timer2 p2854 define input signal Timer2 r2852.0 Input of the timer 2 = output of timer 1
Delay time of Timer2 p2855 defines delay time of Timer2 30.0  30 sec.
Mode Timers2 p2856 selects mode 0 switch-in delay (sec.) 

* DIN6 for MM4, DIN5 for G120/G120D
** only set for MM430/MM440
*** only set for G120/G120D
**** AI1 for MM4, AI0 for G120/G120D

 

( 107 KB )

diagram 01 (to enlarge please klick on the diagram) 

For the quick parameterization of the drive using the commissioning tool STARTER you can use the attached script files for MM440/MM430 and G120/G120D.

Note:
Before you use the script files, please set your drive inverter to the factory settings (P0010 = 30, P0970 = 1).
 

The procedure in detail:
1. Save the attached script files in a folder on your computer hard drive.
   
2. Set-up a script folder for the drive in your STARTER project by clicking with the righthand mouse key on the drive; then click on "Expert" (lefthand mouse key) and on "Insert script folder".
  A new folder appears "SCRIPTS" at the lower end of the tree.
   
3. Import the script from your folder into STARTER as described below:
  - Using the righthand mouse key click on the tab "SCRIPTS";
  - Click on "ASCII import..." and open the required script file;
  - Assign a name to the opened file and acknowledge with OK.
   
4. Execute the script by clicking with the righthand mouse key on the script and clicking "Accept and execute"; or open the script by double clicking on it and then pressing the button "Accept and execute".

Maintenance_circuit_G120.txt ( 2 KB )  

Maintenance_circuit_MM4.txt ( 2 KB )

 

MICROMASTER 4 (MM4), SINAMICS G120 (CU2x0x): How can the displays be scaled so that specific value can be shown?Go to beginning
Part number:

This FAQ applies only to the SINAMICS G120/G120D Control Units without “-2” in the product name and MICROMASTER 4 inverters.

Note
The internal value ranges for the drive inverter lie between-200% and +200%,
e.g. output speeds of gearboxes can be displayed. If a larger display range is required, then the customer must accept an incorrect position of the decimal point.

There are two ways to display a customer-specific value on a drive inverter.

1)
Display on the inverter when the PID controller is not used:
Example: Displaying 0...50 Hz as 0,00...125.25
Function Parameter Description Setting Description
user access lever p0003 defines user access level to parameter sets 3 expert use
display selection p0005 selects display for parameter r0000 (drive display) r2272 PID scaled feedback shown in r0000
reference frequency p2000 represents the reference frequency 50Hz  
PID feedback p2264 selects source of PID feedback signal  r0021 act. filtered frequency 1
max value for PID feedback p2267 sets the upper limit 200%  
min value for PID feedback p2268 sets the lower limit -200%  
Gain applied to PID feedback p2269 scale the PID feedback as a percentage value 125.25  
PID scaled feedback r2272 displays PID scaled feedback signal xx  

2)
Alternatively using function blocks (not possible with MM420!):
Example: Displaying 0...50 Hz as 0,00...125.25
Function Parameter Description Setting Description
user access lever p0003 defines user access level to parameter sets 3 expert use
display selection p0005 selects display for parameter r0000 (drive display) r2878 displays in r0000
reference frequency p2000 represents the reference frequency 50Hz  
Enable Free function blocks (FFB) p2800 enables all free function blocks 1 enabled (calculated in every 132ms)
activate FFB p2802.8 enable MUL 1 (Multiplier 1) 1 activated
Multiplier 1 p2877.0 Connector input 0 r0021 act. filtered frequency 1
Multiplier 1 p2877.1 Connector input 1 p2889 fixed setpoint
Multiplier 1 (CO) r2878 Result of Multiplier 1 xx  
Fixed setpoint 1 p2889 fixed percent setting 1 125.25  

 

Further information

  • Application: "Displaying the speed after a gearbox using the free blocks of the drive inverter"; Entry-ID: 24115770

 

MICROMASTER 4 (MM4), SINAMICS G120 (CU2x0x): How do I proceed when parameterizing a "master-slave" drive?Go to beginning
Part number:

This FAQ applies only to the SINAMICS G120/G120D Control Units without “-2” in the product name and MICROMASTER 4 inverters.

Task
This example shows you how to commission two inverters as "master-slave" drive.
Consider the simple example of a conveyor belt with two inverters: A master (leading) drive and a slave (following) drive.
The belt velocity is entered via the master drive (motor M1) (e.g. via AIN 1). The slave drive (motor M2) receives a torque setpoint from the master drive, which depends on the load on the master drive. To do this the analog output of the master drive is connected to the analog input of the slave drive. Closed-loop vector control (VC) with encoder is used as control type for the master drive and closed-loop torque control with encoder is used for the slave drive.

Basic prerequisites
Both MICROMASTER 440 inverters as well as SINAMICS G120 with CU240S ... up to firmware (FW) 3.2 can be used.

Solution
Now commission both of the drives as described in the Operating Instructions.
1. Quick (fast) commissioning of both drives
2. Motor identification for both drives
3. Commission the encoder for both drives
4. Connect analog output 2 of the master drive with analog input 2 of the slave drive
5. Set switch ADC2 of the I/O module of the slave drive into the ON setting (= 0-20mA input)

Before continuing with the commissioning first calibrate the motor speeds. To do this select operating mode V/f (refer to P1300) and operate both drives with the same (operating) speed; now compare parameter r0061 with r0021; the sign and magnitude must correspond (a slight deviation can be accepted). If both conditions are fulfilled P1300 can be changed and the closed-loop vector control / closed-loop torque control with encoder can be activated (refer to the parameter list MM440, Chapter 3.29 Control type, parameter P1300; Chapter 3.5 Speed encoder, parameter P0400; Operating Instructions MM440, Chapter 3.23.2).
If the direction of rotation is not correct, the output phases of the inverter or the encoder channels should be checked and if required re-wired.

Note
The motor direction of rotation can also be reversed without interchanging the output phases by changing P1820 to 1; the direction of rotation sense of the encoder can also be reversed by changing parameter P0410 to 1 (only for SINAMICS G120; refer to parameter list CU240S…, parameter P0410).

Parameter changes required for the master drive
1. P0771.1 = r0079 torque setpoint at analog output 2
In order to be able to transfer negative values of the torque setpoint from the master to the slave (for clockwise and counter-clockwise rotation of the drives) the analog output must be scaled as follows:

2. P0777.1 = 0 % x1 value = 0 %
3. P0778.1 = 10 y1 value = 10 mA
4. P0779.1 = 100 % x2 value = 100 %
5. P0780.1 = 20 y2 value = 20 mA

6. P1300 = 21 vector control with sensor

Parameter changes required for the slave drive
7. P0756.1 = 2 analog input 2 to 0-20mA

Scaling of the analog input:
8. P0757.1 = 10 x1 value = 10 mA
9. P0758.1 = 0 % y1 value = 0 %
10. P0759.1 = 20 x2 value = 20 mA
11. P0760.1 = 100 % y2 value = 100 %

12. P1082 = 55 maximum frequency (higher than at the master)
13. P1300 = 23 vector closed-loop torque control with sensor
14. P1503 = r0755.1 analog input 2 as torque setpoint
15. P2000 = 55 reference frequency (higher than that at the master)

If the slave fails with a fault then the master must be stopped as quickly as possible. For this purpose, fault bit r0052.3 of the slave can be used as signal for an OFF2 command or setpoint inhibit of the master. A digital output of the slave (e.g. DOUT1) should be connected to a digital input of the master (e.g. DIN4).
Connect terminals 19 and 20 of the slave with terminals 8 and 9 of the master.
The appropriate parameterization should be made:

Slave
P0731.0 = 52.3

Master
P0704 = 99
P0844.0 = 722.3 OFF2 command

Or/and
P0852.0 = 722.3 setpoint inhibit

Schematic representation of the system

Further Information
 
Title

Link

How can I use Sensorless Vector Control (SLVC) on the MM440 or SINAMICS G120? Entry-ID: 7494205
How do I set up Torque Control on the MM440? Entry-ID: 7714804
MICROMASTER 4 / SINAMICS G120: Closed-loop torque control and load distribution Entry-ID: 23939668
MICROMASTER 440: manually determining the magnetizing current and re-calculating the motor equivalent circuit diagram Entry-ID: 22078991
Operating Instructions: MICROMASTER 440 0,12 kW - 250 kW Entry-ID: 24294529
Parameter List: MICROMASTER 440 Entry-ID: 23708204
Operating Instructions: SINAMICS G120 Control Units CU240S und CU240E, FW 3.2 Entry-ID: 52594818
Parameter List: SINAMICS G120 Control Units CU240E, CU240S FW 3.2 Entry-ID: 32465038

 

MICROMASTER 4 (MM4), SINAMICS G120 (CU2x0x): How do I get the analogue output to show 0-20mA for 0-Fmax and also 0-20mA for 0-Fmax in the opposite direction of rotation? (SW below 2.10)Go to beginning
Part number:

MICROMASTER 430 & 440 to SW2.10

This task can be implemented, for MM430 & MM440 up to SW2.10 using free blocks and the PID controller of the drive inverter (refer to Fig. 1).

The output frequency r21 (r24) is signed depending on the direction, so you must create an unsigned value from this.
You should first square and then take the square root of the frequency to ensure the value you have will be a positive value independent of direction of rotation.

This can be done as follows:
P2800 = 1 enable free function blocks
P2802[8] = 1 enable multiplier
P2877[0] = 21 (r24 etc.)
P2877[1] = 21 (r24 etc.)
The square of the output frequency (always positive) is now available in r2878.
P2264[0] = 2878
P2270 = 1 (square root)
The square root of r2878 is now available in r2272. This will now be the unsigned value of the output frequency (always positive).
P0771 = 2272 analogue output will now give the desired result.
Parameter P0771 has two indices –
P0771 – index 0 (Analogue Output 1) and index1 (Analogue Output 2)

 

( 54 KB )

Figure 1 (Click on picture for large view)

 

Note:

The use of the PID mathematical function assumes the PID function is not already being used, i.e. P2200 = 0.

 

MICROMASTER 420 to SW1.20

Not possible

 

MICROMASTER 420 from SW1.20, MICROMASTER 430 & 440 from SW2.10, SINAMICS G120 (CU240…) from SW2.0

From SW1.20 onwards for MM420, SW 2.10 for MM430 & MM440 and SW2.0 for CU240… of the G120, this task can be solved using parameter P0775.

This parameter decides if the absolute value of the analog output is used. If enabled, this parameter will take the absolute value of the value to be output.

Possible Settings:
0 OFF
1 ON

Index*:
P0775[0] : Analog output 1 (DAC 1)
P0775[1] : Analog output 2 (DAC 2)

* For MM420 the parameter P0771 is not indexed

 

History
Version Date

Modifications

1.0 June 2002 first edition
1.1 November 2006 Update of text
2.0 September 2007 Update of text: Addition for MM420, MM430, MM440, CU240… and different firmware versions

 
Written by: A&D SD CST
   

MICROMASTER 4 (MM4): When sh, SINAMICS G120 (CU2x0x): Could I use P0719 instead of P0700 and P1000 for selecting setpoint and command sources?Go to beginning
Part number:

This FAQ applies only to the SINAMICS G120/G120D Control Units without “-2” in the product name and MICROMASTER 4 inverters.

P0719 is intended to implement simple local and remote switching.

This function has not been implemented on initial software versions of MM410 (versions 1.03 and below) and MM420 (versions 1.05 and below).

For normal setting up and commissioning, the use of P0719 is not recommended. Parameters P0700 and P1000 should be used instead (see also FAQ: "How do I use different parameter sets with the MM440/MM430?" Entry-ID: 7379354)

On MM430 and MM436 local/remote or hand/auto switching are implemented using P0718.

The maximum frequency, P1082, is set higher, but the drive won't run above 50Hz/60Hz. Why?Go to beginning
Part number:

Parameter P1082 limits the maximum frequency, independent of scaling, motor parameters etc. Therefore to operate a drive at a frequency above 50Hz (60Hz when North American settings are selected) it is necessary to change P1082, and rescale other settings, such as the setpoint. 

The easiest way to do this is to change the Reference Frequency, stored in parameter P2000.

Changing the value will automatically rescale the analogue input and serial link so that the full scale corresponds to this value. Other parameters that are rescaled as a result of changing P2000 include the frequency indicated at the analogue output for example.

For more information concerning P2000 see the parameter list. 

Remember that the motor or process may not be suitable for running at these speeds / frequencies.

Example: Motor to run at 0 - 120 Hz controlled by the analogue input.

1. Default parameters
2. Quick Commissioning
3. P1082 = 120 (or greater)
4. P2000 = 120

The motor frequency is now controlled from the analogue input so that 0 - 10V corresponds to an output of 0 -120 Hz. The analogue output indicates frequency such that 20mA corresponds to 120Hz.

MICROMASTER 440 (MM4): Which parameters indicate setpoint, output frequency and motor speed?Go to beginning
Part number:
Applies to: MM440

The following read only parameters contain speed or frequency information; they differ in the detail and when they are active.

r0020 is the setpoint (before ramp generator).

r0021 is the output frequency in Hz.

r0022 is the calculated rotor speed in rpm. This figure is simply the output frequency multiplied 60, and by the number of pole pairs of the motor to produce a revolutions per minute value in the display. Slip is not accounted for. 
However, if the encoder is fitted and enabled this is derived from the encoder signal, and is therefore an accurate speed signal. 
This signal cannot be connected to the analogue output.

r0024 is the output frequency in Hz including slip compensation if enabled, otherwise this is the same value as r0021.

r0061 is the speed signal from the encoder in Hz (good for checking the validity of the feedback) valid only when P0400 > 0

r0062 is the setpoint frequency in Hz, after the ramp function generator. Valid only in SVC or VC (P1300>19). See function diagram 7500 for example.

r0063 is the motor speed in frequency in Hz, after the ramp function generator. This is the motor speed as calculated by the drive when in SVC (P1300 =20,22), or the speed from the encoder (r0061) when VC is enabled (P1300=21,23). Valid only in SVC or VC (P1300>19). See function diagram 7510 for example.

r0066 is the output frequency in Hz; same as r0021.

MICROMASTER 4 (MM4): What are the different ways of selecting variable torque operation using P0205, P0500 and P1300?Go to beginning
Part number:
Applies to: MM440


Parameter P0205 changes all the parameters in the inverter from Constant Torque ratings to the Variable Torque ratings. Parameters changed include r0206, r0207, r0209, P0305, P0307, P0500, P1300.
P0205 can only be changed during quick commissioning (P0010 = 1), and is only valid for drives which have a VT and CT rating (i.e. Frame Size C and above).

P0500 can be changed at any time, and changes P1300 to 2.
Constant Torque and Variable Torque ratings do not change.

P1300 changes the voltage/frequency relationship only. 

MICROMASTER 420 (MM4): Why does my MM420 run up to 60Hz?Go to beginning
Part number:
Applies to: MM420


It is necessary to carry out quick commissioning and set P0100 = 0 for 50Hz (European setting for motors with 50Hz nominal motor frequency). The default setting for parameter P0100 is normally 0, but a few MM420 drives have been delivered with P0100 = 2 (North American settings, 60Hz). This sets the maximum frequency, analogue scaling and several other parameters to suit 60Hz motors, with power settings in kW. Parameter P0100 is normally checked and set during quick commissioning to correspond to the motor being used, overwriting the (incorrect) default setting, but if this is omitted the drive will run to 60Hz.

Ensure the quick commissioning instructions are followed, P0100 set correctly, and the necessary calculations completed at the end of quick commissioning (usually P3900 = 1). The calculation process is necessary to set the correct parameters to ensure optimum performance and motor protection.

MICROMASTER 440 (MM4): How can I set threshold values on the analogue inputs, and control the reaction of the drive? (MM440 SW above 2.0)Go to beginning
Part number:

Applies to: MM440 (Software Version >2.0)


Setting, detecting and reacting to thresholds on the analogue input has many applications, and can be achieved using the function blocks on MM440 P2 drives. Here is an example based on a particular problem:

"How can I detect loss of analogue input signal, and switch to an alternative setpoint?"

The loss of an analogue input can be detected by setting parameter P0756 to 3, but reaction is limited to indicating a fault. A more general solution can be achieved using the function blocks on MM440, in this case a comparator.
The comparator compares the input signal with a convenient (unused) reference, in this case the motor potentiometer reference, and enables the alternative setpoint, in this case a fixed frequency, when the analogue input falls below this reference.

Parameter settings:

Setting the setpoints and references:

P1000 = 23 Setpoint Source = Analogue + Fixed Frequency
P1040 = (e.g.) 5 Hz (motor pot used here as reference value)
P1001 = (e.g.) 10 Hz
P1016 = 1 [default] Direct selection of Fixed Frequency

Setting up the comparator:

P2800 = 1 Enable function blocks
P2082.12 = 1 Enable Comparator
P2885.0 = 1050 Connects comparator input 1 to the motor potentiometer reference value
P2885.1 = 755.0 Connects comparator input 2 to the analogue input value
P1020 = 2886 Connects comparator output to Fixed Frequency bit 1 enable

Now when the input frequency falls below 5 Hz (more precisely, 1V) the fixed frequency is enabled and added to the setpoint. In practice, if the analogue input fails, the drive will run at 10 Hz.

Notes:

1.  The value of P1050 is displayed in Hz, but is actually a floating point value. The value of P755.0 is 0 - 16000. Both numbers may be compared logically and the comparator changes state at 10% (5 Hz) of the input as expected.

2.  The function operates equally well with 4 - 20 mA input.

3.  The functions works with +/- 10V input, but requires considerably more logic and is described in a separate FAQ.

4.  Many other applications can be met using the basic principle of reacting to input signal thresholds, instead of output thresholds (see existing frequency, current, torque threshold parameters etc.). For example:
-  Switching the drive on and off using an input threshold (connect the comparator output to P0840). Drive can be switched off below a minimum frequency for example.
-  Switching the drive on and off using an input threshold and a digital input (as above, but connect the comparator output via an AND gate; connect the digital input to the other AND gate input).
-  Disable the inverter when a feedback signal falls below a certain value (connect the comparator input to the feedback signal 755.1). Used in conjunction with a timer and other function blocks, this can operate as sleep or hibernation mode.
These will be detailed in future FAQs.

MICROMASTER 4 (MM4): What are the P1300 parameter settings 5 and 6?Go to beginning
Part number:

Applies to: MM440


These are the "textile application" control mode settings.

P1300 = 5: V/f for textile applications
P1300 = 6: V/f with FCC for textile applications

The "textile application" settings are the same as the normal V/f and V/f with FCC, except that the control mechanisms such as the Imax controller and oscillation damping DO NOT CHANGE THE OUTPUT FREQUENCY.

Example:

If the inverter hits current limit, the output voltage, but not the output frequency, will be reduced.
The output frequency will correspond to the frequency setpoint.

MICROMASTER 4 (MM4), SINAMICS G120 (CU2x0x): How does the inverter react for the different possible values of the "automatic restart" and what is the delay time between restart attempts?Go to beginning
Part number:

 

This FAQ applies only to the SINAMICS G120/G120D Control Units without “-2” in the product name and MICROMASTER 4 inverters

P1210 is the parameter which enables a automatic restart after a mains break or after a fault.

  • P1210 = 0: Automatic restart is disabled – i.e. it is switched off so the inverter will not restart without toggling the ON command.
  • P1210 = 1: The inverter will acknowledge i.e. it will reset the F0003 fault when the power is re-applied. The inverter will not run until the ON signal has been toggled.
  • P1210 = 2: The inverter will restart after a mains blackout when the power is re-applied. The ON command does not need to be toggled. The inverter will not restart after a brownout (a very short mains break where the DC link has not fully collapsed). It will show an F0003 which needs to be reset before the inverter can be made to run by toggling the ON command.
  • P1210 = 3: The inverter will restart after either a fault or a mains interruption of any duration.
  • P1210 = 4: The inverter will restart after a mains interruption of any duration. Any other fault will need to be reset and the run signal should be toggled.
  • P1210 = 5: The inverter will restart after a mains break (a long one) or a fault. It will not start after a brownout. It will show an F0003 which needs to be reset before the inverter can be made to run by toggling the ON command.
  • P1210 = 6: The inverter will acknowledge the faults F0003 etc. at power on after blackout or brownout and restarts the drive. It is necessary that the ON command is wired via digital input. Setting 6 causes the motor to restart immediately.

Note

A brief explanation of the difference between a “blackout” and a “brownout” for the purpose of the above description is as follows:

  • A “brownout” is where the power is interrupted and re-applied before the display on the BOP (if one is fitted to the inverter) has gone dark.
  • A “blackout” is where the display has gone dark before the power is re-applied.

 

The number of restarts is set by parameter P1211 (default value 3).
The delay time is the time between attempts of quitting fault. The delay time of first attempt is 1 second, then it will be doubled every next attempt.
The delay between the starts increases as detailed in the table below:


 
Number of attempts Delay time between 2 attempts [seconds] Total delay time [seconds]
0 0 0
1 1 1
2 2 3
3 4 7
4 8 15
5 16 31
6 32 63
7 64 127
8 128 255
9 254 509
10 512 1021

 

Information

  • MM4:
    • Information about the relevant parameters you find in the Parameter List. Entry-ID: 23708204
    • Information about the "automatic restart" you find in the Operating Instructions. Entry-ID: 24294529
  • G120:
    • Information about the relevant parameters you find in the Parameter Manual. Entry-ID: 32465038
    • Information about the "automatic restart" you find in the Function Manual. Entry-ID: 52614597

MICROMASTER 4 (MM420): Can I scale the value displayed in r0000?Go to beginning
Part number:

 

Yes
It is possible to scale and perform mathematical functions on the display value.

This is done by using the feedback part of the PI controller as follows:

 
Function Parameter Description Setting Description
Drive display r0000 Displays the user selected output as defined in P0005 xx to choose in P0005
User access level P0003 Defines user access level to parameter sets 3 extended access
Enable PID controller P2200 enable/disable the PID controller 0 disabled
PID feedback P2264 the quantity to be scaled and displayed is connected to the PI feedback loop e.g. 24 output frequency
Gain applied to PID feedback P2269 gain applied to the signal in % xx  
PID feedback function selector P2270 allows mathematical functions xx  
PID scaled feedback r2272 displays scaled value xx  
Display selection P0005 settings refer to read only parameter numbers 2272 r2272 (PID scaled feedback)

 

The scaled value is now displayed in r0000, but the displayed value is a % quantity with the normalisation determined by parameters P2000 to P2002 (reference parameters).

Note

  • To display scaled negative values using this method, P2268 (PI feedback minimum value) should be set to -200 %. The default value for this parameter is 0 %.

Information

  • Further information about the relevant parameters you get in the Parameter List; Entry-ID: 24525275

MICROMASTER 4 (MM4), SINAMICS G120 (CU2x0x): How do I perform a complete factory reset?Go to beginning
Part number:

This FAQ applies only to the SINAMICS G120/G120D Control Units without “-2” in the product name and MICROMASTER 4 inverters.

You can re-establish the initial state at any time by carrying-out a parameter reset to the factory setting. This undoes all of the parameter changes which were made since the drive inverter was supplied.
Function Parameter Description Setting Description
user access level P0003 access level for parameter sets 1 standard
commissioning parameter P0010 Filters parameter 30 Factory setting
Factory reset P0970 resets all parameters to their default values 1 parameter reset
The drive inverter carries-out a parameter reset and then automatically exits the reset menu and sets P0010 = 0 and P0010 = 0

 

 Entry ID:26437038   Date:2013-08-20 
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