Siemens SINAMICS S150 NEMA, Operating Instructions Manual

Page: 133 / 862

Electrical installation
4.9 Additional connections
Enclosed Drives
Operating Instructions, 12/2018, A5E36652151A
131
4.9.10 EMERGENCY STOP category 1; 24 V DC (option L60)
Description
EMERGENCY OFF category 1 for controlled stop according to IEC 60204-1. The function
includes the stopping of the drive via an emergency stop according to an assigned ramp-
down. This is followed by the interruption of the energy supply of the enclosed drive via the
line contactor by bypassing the electronics by means of a safety relay according to
IEC 60204-1.
The operational status and function are indicated by five LEDs (-K120).
Connecting
Table 4- 38 Terminal block X120 – Connection for EMERGENCY STOP category 1 (24 V DC)
Terminal Technical specifications
4 Jumper wired at the factory
11
5 Jumper wired at the factory
10
7 Loop in EMERGENCY OFF button from line side:
Remove jumpers 7-8 and connect button.
8
9
Jumper wired at the factory
14
12
Jumper wired at the factory
13
15
"On" for monitored start:
Remove jumpers 15–16 and connect button.
16
17
NO
1)
: "trip safety combination" checkback
18
Max. connectable cross-section: #12 AWG (4 mm²)
1)
NO: normally-open contact
Setting
The time (0.5 to 30 s) set for the contactor safety combination (-K120) should be greater
than (or at least equal to) the time that the drive requires to reach a standstill via the quick
stop (OFF3 ramp-down time, p1135), because the converter is disconnected from the energy
supply when the time runs out (at -K120).
Diagnostics
For a description of messages output during operation and in the event of faults (meaning of
LEDs on -K120), refer to the Operating Instructions on the customer DVD supplied with the
unit.