Columbus McKinnon MAGNETEK LaserGuard Mini, Technical Manual, Page: 14 / 36

LaserGuard Mini Technical Manual
July 2021
Page 14 of 36
2 Electrical Installation
2.1 Voltage Considerations
Check the specification table or system drawings for proper line input voltage and supported relay
voltages. If there are any questions, contact Magnetek before applying power to the system.
NOTE: The collision avoidance system should not be connected to lines containing excessive
power-up transients or continuous commutator noise. A line conditioner may be necessary in
some installations.
2.2 Wiring Considerations
1. Do not connect or disconnect wiring or perform circuit checks while the power is turned on.
2. Keep power supply wiring in a metal conduit and separate from any motor wiring.
3. Keep control wiring in separate conduit and as short as possible.
4. Observe National Electric Code (NEC) when wiring electrical devices.
5. When cutting holes in the cabinet, take care to prevent metal filings from shorting the circuitry. Remove
any metal screws, metal filings, and wire clippings from inside of the unit.
6. Inspect to make sure no exposed wire has contact with any other wiring or terminals.
7. If possible, use suppressors on all contactors.
2.3 Wiring Instructions
1. Connect power to the power supply (85-264 VAC or 120-370 VDC) terminals “+” and “-.”
2. Wire both relays according to
Figure 2-1 and Figure 2-2 on page 15 . The acceptable wire size is
24 to 14 AWG.
Please observe National Electrical Code (NEC) guidelines when wiring electrical devices.
3. Connect a ground wire to the dedicated ground terminal block.
4. Turn on the power and verify that the green LED on the laser sensor is on continuously after a few
seconds. If that does not occur, turn the power off and recheck all wiring.
WARNING
The unit must be wired to the correct voltage. Failure to do so may damage the system.