R&M Materials Handling, Inc
STAGEMAKER® COMPACT Concert Hoist
Springfield, Ohio USA
SM5 Manual
: 800 955-9967
Revision 1
web:
www.rmhoist.com
08/14/02
RM-SM5-MAN-2001-1-ENG
4-14
2.
PC Board
- control transformer and contactors are soldered to a circuit board. PC Board is
furnished on the hoist for configuration B1, B2 or C. A special PC Board is furnished on the
hoist for configuration D.
1
2
Note
: The number, size and quantity of control devices vary considerably, depending on the
number and types of motors and the many control options that are available. Refer to
wiring diagram for specific details on power/control devices.
No specific rules can be given as to the frequency of replacement of electrical devices.
Deterioration of electrical components is directly related to the heat generated (over time) in
contactor coils and transformers, and the arcing of contactors when the motor circuit is opened
(starts/stops).
The single speed concert chain hoist furnished with PC Board controls is available for a power
supply of 208/230 volts or 460 volts.
Single speed hoist furnished with a special PC Board could be voltage reconnectable for 230/460
volts if ordered that way.
Ø
To convert a voltage reconnectable single speed chain hoist with a special PC Board
(contactor control) from 230 (208) volts to 460 volts, the connection changes include:
•
Checking that fuse (F100) is being used for control transformer (T100).
•
Reconnecting primary line connections to control transformer.
•
Reconnecting hoist motor leads.
•
Reconnecting hoist motor brake.
Chain hoists with two-speed hoist motion are not voltage reconnectable.
Hoist Circuit Diagram-Standard
Hoist circuit (wiring) diagrams, shown on page 4-19 and after are standard for the indicated hoist
configuration.
When hoists of configuration B2 or C are equipped with PC Board controls with a mainline
contactor, they are wired for single speed (low speed is not connected) and the mainline contactor
is disabled. The function of the mainline contactor is taken over by the controller. By doing so,
group control through a single standard controller is simplified.
Manuals and wiring diagrams for controls and controller are furnished with the controller when
they are supplied separate from the hoist.
