Siemens SINAMICS S Series - A01921 (F) PROFIBUS: Receive setpoints after To; A01930 IF1: PB;PN current controller clock cycle clock cycle synchronous not equal; A01931 IF1: PB;PN speed controller clock cycle clock cycle synchronous not equal; A01932 IF1: PB;PN clock cycle synchronization missing for DSC

List of faults and alarms
Faults and Alarms
3-1499
© Siemens AG 2007 All Rights Reserved
SINAMICS S List Manual (LH1), 07/2007
Remedy: Set up the PROFIBUS connection and activate the PROFIBUS master in the cyclic mode.
Reaction upon F: NONE (OFF1)
Acknowl. upon F: IMMEDIATELY
A01921 (F) PROFIBUS: Receive setpoints after To
Drive object: All objects
Reaction: NONE
Acknowledge: NONE
Cause: Output data of PROFIBUS master (setpoints) received at the incorrect instant in time within the PROFIBUS clock
cycle.
Remedy: - check bus configuration.
- check parameters for clock cycle synchronization (ensure To > Tdx).
Note:
Zo: Time of setpoint acceptance
Tdx: Data exchange time
Reaction upon F: NONE (OFF1)
Acknowl. upon F: IMMEDIATELY
A01930 IF1: PB/PN current controller clock cycle clock cycle synchronous not equal
Drive object: All objects
Reaction: NONE
Acknowledge: NONE
Cause: The current controller clock cycle of all drives must be set the same for the clock cycle synchronous operation.
Alarm value (r2124, interpret decimal):
Number of the drive object with the different current controller clock cycle.
Remedy: Set current controller clock cycles to identical values (p0115[0]).
Note:
IF1: Interface 1
PB: PROFIBUS
PN: PROFINET
See also: p0115 (Sampling time for supplementary functions)
A01931 IF1: PB/PN speed controller clock cycle clock cycle synchronous not equal
Drive object: All objects
Reaction: NONE
Acknowledge: NONE
Cause: The speed controller clock cycle of all drives must be set the same for the clock cycle synchronous operation.
Alarm value (r2124, interpret decimal):
Number of the drive object with the different speed controller clock cycle.
Remedy: Set the speed controller clock cycles the same (p0115[1]).
Note:
IF1: Interface 1
PB: PROFIBUS
PN: PROFINET
See also: p0115 (Sampling time for supplementary functions)
A01932 IF1: PB/PN clock cycle synchronization missing for DSC
Drive object: SERVO, TM41
Reaction: NONE
Acknowledge: NONE
Cause: There is not clock cycle synchronization and DSC is selected.
Note:
DSC: Dynamic Servo Control
Remedy: Set the clock cycle synchronization when configuring the bus.