Functions
7.9 Application-specific functions
Frequency inverters with Control Units CU230P-2 HVAC, CU230P-2 DP, CU230P-2 CAN
Operating Instructions, 01/2011, FW 4.4, A5E02430659B AD
263
Controlling the activation and deactivation of motors
Use p2371 to determine the order of activation/deactivation for the individual external
motors.
Table 7- 47 Order of activation for external motors depending on setting in p2371
p2371 Significance
Stage 1 Stage 2
Stage 3
Stage 4
Stage 5
Stage 6
0
Cascade control deactivated
---
1
One motor can be activated
M1
2
Two motors can be activated
M1
M1+M2
3
Two motors can be activated
M1
M2
M1+M2
4
Three motors can be activated
M1
M1+M2 M1+M2+M3
5
Three motors can be activated
M1
M3
M1+M3
M1+M2+M3
6
Three motors can be activated
M1
M2
M1+M2
M2+M3
M1+M2+M3
7
Three motors can be activated
M1
M1+M2 M3
M1+M3
M1+M2+M3
8
Three motors can be activated
M1
M2
M3
M1+M3
M2+M3
M1+M2+M3
Table 7- 48 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).
Summary of Contents for SINAMICS G120 CU230P-2
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