Wiring The Terminal Strips - Siemens SINAMICS G120XA Operating Instructions Manual

Terminal Name
9 NC
10 NC
11 Activation line
contactor
12 Activation line
contactor
Maximum connection cross section: 2.5 mm² (14 AWG)
Minimum connection cross section: 0.2 mm² (25 AWG)
Maximum tightening torque: 0.5 Nm (4.4 lbf.in)
4.2.7

Wiring the terminal strips

Electric shock due to unsuitable motor temperature evaluation system
Voltage flashovers to the electronics of the converter can occur in motors without safe
electrical separation of the temperature sensors in accordance with IEC 61800‑5‑1 when the
motor develops a fault.
● Install a temperature monitoring relay 3RS1... or 3RS2...
● Evaluate the temperature monitoring relay output using a digital input of the converter, e.g.
You can find additional information about the temperature monitoring relay on the Internet:
support.industry.siemens.com/cs/ww/en/view/54999309)
SINAMICS G120XA converter
Operating Instructions, 03/2019, FW V1.0, A5E44751205B AB
Meaning
Not connected
Not connected
Line contactor control Output
Line contactor control Output
WARNING
using the "External fault" function.
Manual 3RS1 / 3RS2 temperature monitoring relays
Input/ Technical data
output
Contact type: NO contact
Maximum load current: 4 A, 230 VAC, cosφ = 0.6 ind
Floating
A device to protect against overload and short-circuit is re‐
quired to supply the unprotected output (e.g. 4 A / 250 V
fuses).
Surge suppressors must be connected to the excitation coil
of the main contactor (e.g. RC element).
To control the line contactor, the following contact charac‐
teristic values of the relay apply:
● 250 V AC, 10 A (NC and NO), general purpose, 85 °C
● 24 V DC, 10 A (NC and NO), general purpose, 85 °C
● 30 V DC, 8 A (NO), 6 A (NC), general purpose, 85 °C
● B300 (NC and NO), pilot duty, 85 °C
● R300 (NC and NO), pilot duty, 85 °C
● 24 V AC, 2.0 A (NC and NO), pilot duty, 85 °C
4.2 Control interfaces
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Wiring
99