Beckhoff eXtended Transport System Operating Instructions Manual page 89

Parallel connection of the
8.5.1
modules
24 V
Puls power supply QS20.241 / QT20.241
unit
Primary fusing See documentation on Puls website
Secondary fusing 2-pin 4 A circuit breaker
5SL4204-6
Version: 2.2
Single-channel contactor switch-off
The figure below shows a wiring example of a single-channel con-
tactor switch-off for a maximum of two modules:
power supply unit
DC
Electrical installation
48 V power supply unit
DC
QS40.481 / QT40.481
See documentation on Puls website
Outlet to module with supply
16 A "B" circuit breaker, Siemens 5SY6116-6
Outlet to brake chopper terminal
4 A "C" circuit breaker, Siemens 5SY6104-7
Single-channel contactor switch-off
Siemens 3RT2526-2BB40 + 3RT2926-1BB00
Self-locking of the movers based on the arma-
ture short-circuit principle
Modules have no "Safe Torque Off" STO and
no "Safe Limited Speed" SLS function
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