Harrington Hoists and Cranes (N)ER Hoist - ((N)ER1) User Manual
Page 17
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Power Supply Cable - Hoist Connection
The Power Supply Cable connects to the hoist via a 4-pin (4P) plug and socket. Make this
connection as follows:
Refer
to
Figure 3-8
.
Insert the 4P plug of the Power Supply Cable into the 4P Socket on the hoist and hand tighten
the screw coupling.
Install the Cable Support Arm (pre-installed on the Power Supply Cable) on to the Socket
Holder using the pre-installed Machine Screws and Lock Washers.
Use care to avoid twisting or kinking the Power Supply Cable.
Figure 3-8
Pendant and Power Supply Cable Connections
Power Supply Cable - Installation
If the hoist is hook mounted to a fixed support ensure that the Power Supply Cable is properly
installed and supported between the hoist and the electrical power supply.
If the host is installed on a manual trolley, then the Power Supply Cable must be installed along the
beam that the trolley runs on. For curved beams a special cable suspension system will be
needed, and this instruction does not apply. For straight beams install the Power Supply Cable as
follows:
Install a guide wire system parallel to the beam.
For a manual trolley the guide wire should be positioned slightly outside the hoist's Cable
Support as shown in
Figure 3-8
.
Use the Cable Trolleys supplied with the hoist to suspend the Power Supply Cable from the
guide wire. Space the Cable Trolleys every 5 feet.
3.5.5
Connection to Electrical Power Source - The red, white, and black wires of the Power Supply Cable
should be connected to an Electric Power Disconnect Switch or Circuit Breaker. This connection
should be made so that the hoist is phased properly. Refer to
Section 3.6.11
for instructions on how to
check for correct power supply phase connection.
3.5.6
Fuse/Breaker Capacity -The hoist's power supply should be equipped with overcurrent protection such
as fuses, which should be selected for 110% to 120% of total listed full load amperage, and should be
dual element time-delay fuses. Refer to the motor nameplate for the full load amperage draw.