Siemens SINAMICS S150 NEMA, Operating Instructions Manual, Page: 146 / 862

Electrical installation
4.9 Additional connections
Enclosed Drives
144
Operating Instructions, 12/2018, A5E36652151A
Connecting
Table 4- 45 Connections on the insulation monitor
Terminal Technical specifications
A1 Supply voltage via 6 A melting fuse:
88 to 264 V AC, 77 to 286 V DC
A2
L1
Connection of the 3 ph. AC system to be monitored
L2
AK
Connection to coupling device
KE Connection to protective ground
T1 External test button
T2 External test button
R1 External reset key (NC contact or wire jumper, otherwise the fault code is not stored)
R2 External reset key (NC contact or wire jumper)
F1 STANDBY with aid of F1, F2 function input:
F2
M+
External k Ω display, analog output (0 to 400 μ A)
M- External k Ω display, analog output (0 to 400 μ A)
A Serial interface RS 485
(termination by means of 120-ohm resistor)
B
11
Signaling relay ALARM 1 (mid-position contact)
12 Signaling relay ALARM 1 (NC contact)
14 Signaling relay ALARM 1 (NO contact)
21 Signaling relay ALARM 2 (mid-position contact)
22 Signaling relay ALARM 2 (NC contact)
24 Signaling relay ALARM 2 (NO contact)
Max. connectable cross-section: #14 AWG (2.5 mm²)
Diagnostics
For a description of messages output during operation and in the event of faults (meaning of
LEDs on -B101), refer to the Operating Instructions on the customer DVD supplied with the
unit.
4.9.14 Control power supply, 120 V AC, 5 A (option N70)
Description
The control power supply provides the auxiliary voltages required for external line-side
control circuits of the enclosed drive.