Siemens SINAMICS G150 - Direction Reversal

Setpoint channel and closed-loop control
7.2 Setpoint channel
Converter cabinet units
Operating Instructions, 07/2016, A5E03347396A
421
7.2.2
Direction reversal
Description
Due to the direction reversal in the setpoint channel the drive can be operated in both
directions with the same setpoint polarity.
Use the p1110 or p1111 parameter to block negative or positive direction of rotation.
Note
Incorrect rotating field when the cables were routed
If an incorrect phase sequence was connected when the cables were installed,
and the
cabling cannot be changed, the phase sequence can be changed during drive
commissioning using p1821 (phase sequence direction reversal), thus enabling a direction
reversal. Modifying parameter p1821 produces a direction reversal of the motor and t
he
actual encoder value without changing the setpoint.
Preconditions
Direction reversal is initiated:
● via PROFIBUS by means of control word 1, bit 11
● via the cabinet operator panel (LOCAL mode) with the "Direction reversal" key.
Note
Delivery condition
Note that only one direction of rotation is enabled in the delivery condition when control is
carried out via the AOP30.
Function diagram
FP 3040
Direction limitation and direction reversal
Parameter
•
p1110
BI: Inhibit negative direction
•
p1111
BI:
Inhibit positive direction
•
p1113
BI: Setpoint inversion
•
r1114
Setpoint after direction limiting