General Functions; Servo On - Siemens SINAMICS V90 Operating Instructions Manual

Control functions

7.2 General functions

Refer to Section "DIs (Page 92)" for detailed information about DIs.
Note
Note that if p29003 = 5 and the motor has been working in speed control mode for a certain
perido of time; or p29003 = 7 and the motor has been working in torque control mode for a
certain period of time, the fault code F7493 might appear on the drive BOP. This, however,
will not cause the motor to stop. The motor remains operative under this circumstance and
you can clear the fault code manually.
Note
Fault F52904 occurs when the control mode is changed via p29003. You must save the
parameter and then re-power on the servo drive to apply relevant configurations. For more
information about the remedy and acknowledgement of this fault, refer to Section "List of
faults and alarms (Page 318)".
Note
Switching conditions
For the switching from PTI or IPos to S or T, you are recommended to perform control mode
switching after the INP (in position) signal is at high level.
For the switching from S or T to PTI or IPos, you can perform control mode switching only
after the motor speed is lower than 30 rpm.
7.2 General functions
7.2.1

Servo ON

Servo ON signal (SON)
Signal type Signal name
DI SON
162
p29003
0 (the first control mode)
7
8
Setting
ON = rising edge
OFF = falling edge
C-MODE
IPos
S
Servo motor circuit is connected (servo is ON). Servo motor is
ready to run.
Servo motor circuit is shut off (servo is OFF). Servo motor is not
ready to run.
Operating Instructions, 09/2015, A5E36037884
1 (the second control mode)
T
T
Description
SINAMICS V90, SIMOTICS S-1FL6