SICK GMS840 - Connecting the Power Connection

18
8018429/1DWP/V3-0/2022-06| SICKADDENDUM TO OPERATING INSTRUCTIONS | GMS840
Subject to change without notice
3 INSTALLATION
3.6.2 Connecting the power connection
Safety information and standards
▸ Standards to be applied: IEC 60947-1 and IEC 60947-3
▸ Check whether the available power voltage matches the type plate specifications. If this
is not the case: Do not connect the device.
Installing an external power fuse
Install an external circuit breaker in the main power supply.
● Fuse rating and trigger characteristic:
– Power voltage 115 V AC circuit breaker for 16 Ampere characteristic C
– Power voltage 230 V AC circuit breaker for 16 Ampere characteristic B
Installing an external main power switch
▸ Install a power disconnector switch close to the device (all poles).
▸ Mark the power disconnector switch clearly.
Install the power connection
1 Open the enclosure cover.
2 Insert the power cable through a cable inlet. Use an EMC connection.
3 Lay a shielding on the EMC connection.
4 Connect the power cable to the power connection terminals, see “Electrical
connections”, page 17.
5 Close the cable gland on the cable.
6 Connect the external PA connection with the same electrical potential as the internal PE
connection.
WARNING: Health risk
Ensure electrical safety:
▸ Only connect the device to a main power supply which has a functional protective
conductor (PE to PA, see “Position of connections”, page 29).
▸ Only start the device when a correct protective conductor is installed.
▸ Do not disconnect protective conductor connections.
Internal power fuses:
● Primary: Fuse in internal power supply unit (6.3 A)
If this fuse triggers: Replace the power supply unit.
● Secondary: Fusible cutout on the internal “distribution board” (on CANopen
connections);
if this fuse triggers: Clear the malfunction cause and replace the fusible cutout with
an identical type (F10AH250V).
WARNING: Health risk
▸ Before installing the power cable: Make sure the external main power supply is
switched off.
Technical requirements to the power cable, see “Power connection”, page 31.
WARNING: Risk of explosion of GMS841 (ATEX/ IECEx) and GMS842 (
C
CSA
US)
▸ Only use “identical” material suitable for PA connections.
▸ Observe the commissioning before switching on the power supply: see
“Commissioning of GMS841 (ATEX/ IECEx) and GMS842 (
C
CSA
US)
”, page 22.