Valustar CM 624 R Operating Manual - page 11
The nominal hoist voltage rating corresponding to the voltage
range given on hoist identification label is:
SINGLE SPEED UNITS
Range
Nominal Volts
110-120
115
220-240
230
440-480
460
Three Phase Hoists
Changing the voltage connections on a single speed, three
phase dual voltage unit is easily accomplished by following
the instructions on the wiring diagram provided with the hoist.
Since the motor in a three phase hoist can rotate in either
direction, depending on the manner in which it is connected
to the power supply, the direction of hook movement must be
checked during the original installation and each time hoist is
moved to a new location.
1. Make temporary connections at the power supply.
2. Operate
(UP) control in control station momentarily. If
hook raises, connections are correct and can be made
permanent.
3. If hook lowers, it is necessary to change direction by
interchanging the Red Lead and the Black Lead of the
hoist power cord at power supply. Under no circum-
stances should the internal wiring of control station or
hoist be changed to reverse hook direction. The wiring is
inspected and tested at the factory.
¶
Checking for Adequate Voltage at Hoist
The hoist must be supplied with adequate electrical power in
order to operate properly. For proper operation, the voltage,
(measured at the end of the hoist power cord) must be as
indicated in the table below:
NOMINAL
MINIMUM
MINIMUM
POWER
RUNNING
STARTING
SUPPLY
VOLTAGE
VOLTAGE
115-1-60
104
98
230-3-60
198
–
460-3-60
396
–
Signs of Inadequate Electrical Power (Low Voltage) are:
•
Noisy hoist operations due to brake and/or contactor
chattering.
•
Dimming of lights or slowing of motors connected to the
same circuit.
•
Heating of the hoist motor and other internal components,
as well as heating of the wires and connectors in the cir-
cuit feeding the hoists.
•
Failure of the hoist to lift the load due to motor stalling.
•
Blowing of fuses or tripping of circuit breakers.
V
!!
WARNING
Allowing the hook block to run into the bottom of the hoist
when raising a load or allowing the loose end block to run into
the bottom of the hoist when lowering a load may break the
chain and allow the load to drop.
TO AVOID INJURY:
Do not allow the hook block or the loose end block to contact
the bottom of the hoist.
7
1-TON CAPACITY
2-TON CAPACITY
Trolley Side Frame Spacing
NO. OF SPACERS
NO. OF SPACERS
FLANGE
A
B
C
D
A
B
C
D
WIDTH
2-5/8
10
0
0
10
3
9
1
1
9
3-3/8
8
2
2
8
8
0
0
8
3-5/8
7
3
3
7
7
1
1
7
STANDARD
4
6
4
4
6
6
2
2
6
TROLLEYS
4-5/8
4
6
6
4
4
4
4
4
5
3
7
7
3
3
5
5
3
5-1/4
2
8
8
2
3
5
6
2
5-1/2
1
9
8
2
2
6
7
1
5-5/8
1
9
9
1
1
7
7
1
6
0
8
8
0
6
5
5
5
4
6-1/4
4
6
6
3
8
2
1
8
7
0
9
9
1
5
5
4
5
SPECIAL
7-1/8
5
5
5
4
TROLLEYS
7-1/4
4
6
5
4
7-7/8
2
8
8
1
8
1
9
8
1
Table 2
Minimum Beam Radius 24" for all capacities. Dimension applies to minimum S-Beam and will vary with larger S-Beams.
“X”
B
A
C
D