Single-channel contactor switch-off

The following figure shows a circuit example for a single-channel contactor shutdown for a module:

	24 V_DC power supply unit	48 V_DC power supply unit
Beckhoff power supply units	PS3001-2420-0001 PS3031-2420-0001	PS3011-4820-0000 PS3031-4820-0000
Primary fusing	See power supply unit documentation at www.beckhoff.de	See power supply unit documentation at www.beckhoff.de
Secondary fusing	2-pin 4 A circuit breaker 5SL4204-6	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 armature short-circuit principle Modules have no "Safe Torque Off" STO and no "Safe Limited Speed" SLS function

24 V_DC power supply unit

48 V_DC power supply unit

Beckhoff power supply units

PS3001-2420-0001
PS3031-2420-0001

PS3011-4820-0000
PS3031-4820-0000

Primary fusing

See power supply unit documentation at www.beckhoff.de

Secondary fusing

2-pin 4 A circuit breaker
5SL4204-6

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 armature short-circuit principle

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