Siemens SINAMICS G120 Function Manual page 297

Procedure
To perform the acceptance test of the SSM function, proceed as follows:
1.
2.
3.
You have completed the acceptance test of the SSM function.
Safety Integrated - SINAMICS G110M, G120, G120C, G120D and SIMATIC ET 200pro FC-2
Function Manual, 04/2014, FW V4.7, A5E34261271B AA
The inverter is ready
Check: The inverter signals neither faults nor alarms of the safety functions
•
(r0945[0...7], r2122[0...7]).
Go online with the STARTER and configure the following trace:
Trigger on variable - bit pattern (r9722.15 = 0)
•
Record the following values: r0899, r9714[0], r9722
•
Display the following bits:
– r0899.11
– r9722.15
Select the time interval and pretrigger so you can recognize when the level exceeds
•
the SSM limit and subsequently falls below it again.
Switch on motor
2.1. Specify a speed setpoint which is above the SSM limit.
The following procedure depends on how you have set the SSM function during
2.2.
commissioning:
Upper diagram:
The "speed below limit value" checkback
signal remains active when the motor is
switched off.
2.2.1. Select STO.
2.2.2. Deselect STO again.
2.2.3. Switch on motor within 5 s of
deselecting STO (ON command).
2.3. Check that the correct motor is running.
2.4. Wait until the motor speed reaches the setpoint.
Switch off the motor
3.1. Switch off the motor (OFF1 command).
3.2. Analyze the trace:
If r9714[0] > velocity limit p9346, r9722.15 = 0 applies.
•
SSM without hysteresis:
If r9714[0] < velocity limit p9546,
•
r9722.15 = 1 applies.
The "speed below limit value" checkback
signal remains active when the motor is
switched off:
If the motor is switched off
•
(r0899.11 = 0), then r9722.15 = 1
applies.
A.1 Examples of acceptance tests
Lower diagram:
The "speed below limit value"
checkback signal becomes inactive
when the motor is switched off.
Switch on the motor (ON
command).
SSM with hysteresis:
If r9714[0] < velocity limit p9546
•
- hysteresis p9547,
r9722.15 = 1 applies.
The "speed below limit value"
checkback signal becomes inactive
when the motor is switched off:
If the motor is switched off
•
(r0899.11 = 0), then r9722.15 =
0 applies.
Appendix
Status
297