Siemens SINAMICS G120C Function Manual

6.7.2 Selecting SSM when the motor is switched on
Description
The safety function SSM cannot be selected or deselected using external control signals. SSM
is active if all of the following conditions are met:
● You have enabled one or several extended safety functions.
● For the SSM function, you have set a monitoring speed of > 0.
After switching on the power supply voltage, initially the inverter always sets the feedback
signal "Speed below limit value" of the SSM function to 0.
When the motor is switched on, the inverter compares the load speed with the speed limit.
6SHHG
6SHHGOLPLW
1HJDWLYHVSHHGOLPLW
6SHHGEHORZWKH
OLPLWYDOXH
*UHHQRQ
<HOORZRQ
W
212))
660
660
W
W
/('5'<
/('6$)(
Figure 6-35 Time response of the safety function SSM (Safe Speed Monitor)
Inverter signal Parameter Included in the PROFI‐
safe telegram
Can be interconnec‐
ted with
F-DI F-DO
SSM feedback signal active (speed
below limit value)
r9722.15 ✓ --- ✓
ON/OFF1 r0054.0 --- --- ---
Operation
6.7 Safe Speed Monitor (SSM)
Safety Integrated - SINAMICS G110M, G120, G120C, G120D and SIMATIC ET 200pro FC-2
Function Manual, 01/2017, FW V4.7 SP6, A5E34261271B AD 273

Siemens SINAMICS G120C Specifications

General

Communication Interfaces	PROFINET, PROFIBUS, USS, Modbus RTU
Protection Class	IP20
Ambient Temperature	-10°C to +50°C
Storage Temperature	-40°C to +70°C
Power Range	0.55 kW to 132 kW
Voltage Range	380 V to 480 V
Output Voltage	0 V to Supply Voltage
Frequency Range	0 Hz to rated output frequency
Control Modes	Vector control with encoder
Protection	Overload, overvoltage, undervoltage, short circuit, ground fault
Relative Humidity	5% to 95%, non-condensing
Altitude	Up to 2000 m without derating