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Parameters
7.3 Parameters
p1750[0...n]
Motor model configuration / MotMod config
Access level: 3
Can be changed: T, U
Unit group: -
Min:
-
Description:
Sets the configuration for the motor model.
Bit 0 = 1: Forces open-loop speed-controlled starting (ASM).
Bit 1 = 1: Forces the system to pass through frequency zero, open-loop-controlled (ASM).
Bit 2 = 1: Drive remains in full closed-loop control mode, even at zero frequency (ASM).
Bit 3 = 1: Motor model evaluates the saturation characteristic (ASM).
Bit 6 = 1: If the motor is blocked, sensorless vector control remains speed-controlled (ASM).
Bit 7 = 1: Use rugged switchover limits to switchover the model (open-loop/closed-loop controlled) for regenerative
operation (ASM).
Bit 8 = 1: Open-loop speed controlled operation independent of the speed setpoint (except for OFF3) (ASM).
Bit field:
Bit
00
01
02
03
06
07
08
Dependency:
See also: p0500
CAUTION
Do not use bit 6 = 1 if the motor can be slowly reversed by the load at the torque limit. Long delay times due to blocking
(p2177 > p1758) can cause the motor to stall. In this case you should deactivate the function or use closed-loop control
throughout the speed range (note the information re bit 2 = 1).
534
Signal name
Controlled start
Controlled through 0 Hz
Closed-loop ctrl oper. down to zero freq. for passive loads
Motor model Lh_pre = f(PsiEst)
Closed-loop/open-loop controlled (PMSM) for a blocked
motor
Use rugged changeover limits
Closed-loop controlled until wait time p1758 has expired
Calculated:
CALC_MOD_LIM_REF
Scaling: -
Unit selection: -
Max:
-
1 signal
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Operating Instructions, 03/2019, FW V1.0, A5E44751205B AB
Data type: Unsigned16
Dynamic index: DDS, p0180
Function diagram: -
Factory setting:
0000 0000 0000 0000 bin
0 signal
FP
No
-
No
-
No
-
No
-
No
-
No
-
No
-
SINAMICS G120XA converter
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