Operating instructions

Electrical installation
4.9 Other connections
Drive converter cabinet units
Operating Instructions, 10/2008, A5E00288214A
79
4.9.8 EMERGENCY OFF category 0; 230 V AC or 24 V DC (option L57)
Description
EMERGENCY OFF category 0 for uncontrolled stop to EN 60204-1. This function involves
disconnecting the cabinet unit from the supply via the line contactor bypassing the
electronics by means of a safety combination to EN 60204-1. The motor then coasts to a
stop. To prevent the main contactor from switching under load, an OFF2 is triggered
simultaneously. The operational status is indicated by means of three LEDs (-K120).
In the factory setting, this version is set with a 230 V AC button circuit.
Note
When the EMERGENCY OFF button is pressed, the motor coasts to an uncontrolled
standstill and the main motor voltage is disconnected (to EN 60204-1). Auxiliary voltages
(e.g. for separately-driven fans or anti-condensation heating) may still be present. Certain
sections of the converter (e.g., the closed-loop controller or any auxiliary equipment) may
also remain live. If all the voltages have to be completely disconnected, the EMERGENCY
OFF pushbutton must be integrated in a protection concept, which must be implemented on
the line side. For this purpose, an NC contact is installed at terminal -X120.
Connection
Table 4- 25 Terminal block X120 – connection for EMERGENCY OFF category 0, 230 V AC and 24
V DC
Terminal 230 V AC and 24 V DC button circuit
4
5
Jumper wired in the factory
7
8
Loop in EMERGENCY OFF button from line side,
remove jumpers 7-8 and connect button
9
10
Jumper wired in the factory
11
14
Jumper wired in the factory
12
13
Jumper wired in the factory
15
16
"On" for monitored start:
Remove jumpers 15–16 and connect button.
17
18
NO
1)
: Checkback "trip safety combination"
1)
NO: NO contact
Max. connectable cross-section: 4 mm
2