Connections; Electrical Connection - ABB BT50 Manual

4

Connections

Electrical connection

The inputs from the safety devices must be connected according to one of the following examples in order to fulfil
the expected safety level and to avoid unsafe situations.
Emergency stop with reset when
emergency button returns.
Controlled monitoring of external
contactor, relay, valve or Jokab
Safety's expansion relays.
* BT50 has additional power terminals A1 and A2.
2TLC172316M0201, rev E
2015-09-30
Emergency stop with dual
connection direct to the supply
voltage.
BT50(T) as emergency stop and
control relay with Start and Stop
function.
7
Monitoring to ensure that the
On button is not stuck in pressed
position. A short circuit over the
closing contact is not monitored.
Hatch with automatic reset.
www.abb.com/ jokabsafety