Siemens SINAMICS G120C Function Manual

6.5.2.3 Extended function SS1 with acceleration monitoring
Select SS1
Function
1. The higher-level control selects the SS1 safety function via a fail-safe digital input or via
PROFIsafe safe communication.
2. If the motor has already been switched off when selecting SS1, then the inverter safely
switches off the motor torque with the safety function STO.
If the motor is switched on when SS1 is selected, the inverter brakes the motor with the
OFF3 ramp-down time. The inverter monitors braking using the SAM function (Safe
Acceleration Monitor).
3. The inverter safely switches off the motor torque with the STO safety function if one of the
two conditions is fulfilled:
– The actual speed reaches the value of the "standstill monitoring".
– The delay time has expired.
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Figure 6-19 Braking behavior and diagnostics of the safety function SS1 (Safe Stop 1)
Inverter signal Parameter Included in the PROFI‐
safe telegram
Can be interconnec‐
ted with
F-DI F-DO
STO active (extended functions) r9722.0 ✓ --- ✓
SS1 active (extended functions) r9722.1 ✓ --- ✓
Operation
6.5 Safe Stop 1 (SS1)
Safety Integrated - SINAMICS G110M, G120, G120C, G120D and SIMATIC ET 200pro FC-2
242 Function Manual, 01/2017, FW V4.7 SP6, A5E34261271B AD

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