Connection
9.3 Device replacement
3SK1 safety relays
178 Manual, 04/2013, A5E02526190021A/RS-AA/01
3. Mount the new device
– Chapter "Mounting the devices on a level surfac
e (Page 125)"
– Chapter "Mounting the 22.5 mm/17.5 mm device on a standard mou
nting rail
(Page 129)"
– Chapter "Mounting the 90
mm devices on a standard mounting rail (Page 130)"
–
Chapter "Mounting 22.5 mm/17.5 mm devices with devi
ce connectors on the wall
(Page 144)"
– Chapter "Mounting 90 mm
devices with device connectors on the
wall (Page 151)"
4. Connect the defective device at the terminals
– Chapter for 22.5 mm devices "Connecting the screw-type terminals (Page 162)",
"Connecting the push-in terminals (Page 164)" and "Attaching the terminals
(Page 167)"
– Chapter for 90 mm devices "Con
necting terminals (Page 172)" and "Mounting
terminals (Page 174)"
After applying the suppl
y voltage, the new 3SK1 basic unit checks wheth
er the hardware
configuration matches the device configuration.
If there are no deviations, the system re-enters safety mode.
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