Parallel connection of the power supply

Single-channel contactor switch-off

The figure below shows a wiring example of a single-channel contactor switch-off:

Parallel connection of the power supply 1:

 

48 VDC power supply unit

Beckhoff power supply unit

PS3011-4820-0000
PS3031-4820-0000

Primary fusing

See documentation for power supply unit on www.beckhoff.com

Secondary fusing

32 A "B" circuit breaker, Siemens 5SY6132-6, on the 48 VDC busbar

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 + Siemens 3RT2926-1CB00
Self-locking of the movers according to the armature short-circuit principle

Modules have no "Safe Torque Off" STO and no "Safe Limited Speed" SLS function

Further Information