Electrical installation
Contents of this chapter
This chapter describes the wiring of the safety option done at the factory and contains
guidelines for making user connections.
Wiring
WARNING!
Obey the safety instructions of the drive. If you ignore them, injury or death,
or damage to the equipment can occur. If you are not a qualified electrical
professional, do not do installation, commissioning or maintenance work.
One emergency stop button and one reset button are installed on the cabinet door
and connected to the drive at the factory. There are double contacts in the emergency
stop button and double wiring (redundant two-channel connection) between the
button and the emergency stop safety relay [A61]. The safety relay detects cross faults
and faults across one contact from the emergency stop button.
If necessary, install additional emergency stop buttons on site and connect them to
the applicable terminal block inside the drive cabinet. Refer to the circuit diagrams
delivered with the drive. Obey these general rules:
1. Use only double-contact buttons approved for emergency stop circuits.
2. Connect the emergency stop buttons with two conductors (two-channel
connection). Keep the channels separate.
Note: If you use only one channel in a two-channel implementation, or if the
channels are connected together, the cross fault detection of the detects a
redundancy fault and activates the fault reaction function.
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Electrical installation 19
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