Safe Speed Monitor (Ssm); Overview - Siemens SINAMICS G120 Function Manual

Operation

6.7 Safe Speed Monitor (SSM)

6.7 Safe Speed Monitor (SSM)
6.7.1

Overview

What can you find in this Chapter?
The relevant operating cases for the SSM function are described in this chapter.
Table 6- 7
Feedback signal
Table 6- 8
SSM is not
active
SSM is active
206
Response of the SSM function when the motor is switched on (ON/OFF1 = 1)
Switching the motor on and off when SSM is active or not active
Switching on the motor (ON/OFF1 =
0 → 1)
If SSM is not active, then there are no restrictions for switching on and switching
off the motor.
If SSM is active, you must take into
account several special issues when
switching on the motor.
→ Switching on the motor when SSM is
active (Page 213).
Safety Integrated - SINAMICS G110M, G120, G120C, G120D and SIMATIC ET 200pro FC-2
The SSM function signals as to whether the motor speed is
above or below the set SSM limit value.
→ Selecting SSM when the motor is switched on (Page 207)
The drive response depends on the
signal that you use to switch off the
motor.
→ Switching off the motor when SSM is
active (Page 208)
Function Manual, 04/2014, FW V4.7, A5E34261271B AA
Switching off the motor (ON/OFF1,
OFF2 or OFF3 = 1 → 0)