Control

Two-channel contactor switch-off

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

	24 V_DC power supply unit	48 V_DC power supply unit
Beckhoff power supply unit	PS3001-2420-0001 PS3031-2420-0001	PS3011-4820-0000 PS3031-4820-0000
Primary fusing	See documentation for power supply unit on www.beckhoff.com	See documentation for power supply unit on www.beckhoff.com
Secondary fusing	Overcurrent protection terminal 24 V DC, 2-channel, 4 A/4 A, Beckhoff EL9222-6644 or EL9227-6644 with extended functions	Outlet to module with supply 16 A "B" circuit breaker, Siemens 5SY6116-6 Two-channel contactor switch-off Siemens 3RT2526-2BB40 + 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

24 V_DC power supply unit

48 V_DC power supply unit

Beckhoff power supply unit

PS3001-2420-0001
PS3031-2420-0001

PS3011-4820-0000
PS3031-4820-0000

Primary fusing

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

Secondary fusing

Overcurrent protection terminal
24 V DC, 2-channel, 4 A/4 A, Beckhoff EL9222-6644 or EL9227-6644 with extended functions

Outlet to module with supply
16 A "B" circuit breaker, Siemens 5SY6116-6

Two-channel contactor switch-off
Siemens 3RT2526-2BB40 + 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