Siemens SINAMICS G120 - Page 307

Setting functions
8.7 Application-specific functions
Inverter with CU230P-2 Control Units
Operating Instructions, 11/2013, FW V4.6.6, A5E02430659B AG
307
Table 8- 33 Order of deactivation for external motors depending on setting in p2371
p2371
Activated motors
Stage 1
Stage 2
Stage 3
Stage 4
Stage 5
Stage 6
1
M1
M1
2
M1+M2
M1+M2
M1
3
M1+M2
M1+M2
M2
M1
4
M1+M2+M3
M1+M2+M3
M1+M2
M1
5
M1+M2+M3
M1+M2+M3
M3+M1
M3
M1
6
M1+M2+M3
M1+M2+M3
M3+M2
M2+M1
M2
M1
7
M1+M2+M3
M1+M2+M3
M3+M1
M3
M2+M1
M1
8
M1+M2+M3
M1+M2+M3
M3+M2
M3+M1
M3
M2
M1
If you are using motors of the same power rating, you can use p2372 to define whether the
motors are to be activated/deactivated following the setting specified in p2371 (p2372 = 0) or
based on the operating hours (p2372 = 1, 2 ,3. Details see parameter list).
Parameters to set and activate the cascade control:
p0730 = r2379.0
Signal source for digital output 0
Control external motor 1 via DO 0
p0731 = r2379.1
Signal source for digital output 1
Control external motor 2 via DO 1
p0732 = r2379.2
Signal source for digital output 2
Control external motor 3 via DO 2
p2200 = 1
Technology controller release
Activate technology controller
p2251 = 0
Technology controller mode
Technology controller as main speed setpoint
p2370
Cascade control - enable
Signal source for staging on/off
p2371
Cascade control- configuration Activate staging and define switch-on sequence
p2372
Cascade control - motor selection mode
Define automatic motor switch-on
p2373
Cascade control - switch-in threshold
Define switch-on threshold
p2374
Cascade control
-
switch-in delay
Define delay time
p2375
Cascade control switch-off delay
Define delay time for de-staging
p2376
Cascade control - overcontrol threshold
Define overcontrol threshold
p2377
Cascade control - interlock time
Define interlock time
p2378
Cascade control - connect/disconnect speed
Defining the speed for the main drive after connecting/disconnecting a motor