Electrical Data - CM LODESTAR Manual De Funcionamiento, Mantenimiento Y Piezas

ELECTRICAL DATA

TO DETECT OPEN AND SHORT CIRCUITS
IN ELECTRICAL COMPONENTS.
Open circuits in the coils of electrical components may be detected
by isolating the coil and checking for continuity with an ohmmeter
or with the unit in series with a light or bell circuit. Shorted turns are
indicated by a current draw substantially above normal (connect
ammeter in series with suspected element and impose normal
voltage) or D.C. resistance substantially below normal. The current
method is recommended for coils with very low D.C. resistance.
Motor current draw in the stator should be measured with the rotor
in place and running. Brake, relay and contactor coil current should
be measured with the core iron in operating position.
Table 8. Electrical Data for Hoist Components
Transformer Voltage Leads
X2 to X1
230/460 to 115 H2 to H1
H3 to H4
X2 to X1
230/380 to 48 H2 to H1
H3 to H4
X2 to X1
220/415 to 24 H2 to H1
H3 to H4
X2 to X1
575 to 115
H4 to H1
Contactor Or
Models Speed Selector
Coil Voltage
115
A thru H-2 48
24
115
JJ thru RRT-2 48
24
*D.C. Resistance (OHMS)
27.9
99.0
111.8
5.2
99.0
112.6
1.3
100.4
114.9
28.4
329.1
Nominal *D.C.
Current Resistance
(Amps) (OHMS)
0.04 297.5
0.09 56.3
0.19 14.9
0.07 126.6
0.17 25.1
0.33 6.4
22
(ENGLISH)
Contactor Or
Models Speed Selector
Coil Voltage
A, AA, B, C, E, F
115
and H
A thru H-2 **230
A-2 thru H-2 460
A, A-2, AA, AA-2, B,
B-2, C, C-2, E, E-2, 575
F, F-2, H, H-2
J, L, R, RT 115
J, J-2, L, L-2, LL-2,
**230
R, R-2, RT, RT-2
JJ, JJ-2, LL, LL-2,
RR, RR-2, RRT, **230
RRT-2
J-2, L-2, R-2, RT-2 460
JJ-2, LL-2, RR-2,
460
RRT-2
J, J-2, L, L-2, LL-2,
575
R, R-2, RT, RT-2
JJ, JJ-2, LL, LL-2,
RR, RR-2, RRT, 575
RRT-2
* Resistance values listed are nominal and they may vary slightly
from component to component.
** On dual voltage units (230/460-3-60, 220/380-3-50 and
220/415-3-50), brake coils operate on 230 (220) volts.
Nominal *D.C.
Current Resistance
(Amps) (OHMS)
.51 5.8
.17 23.1
.20 92.3
.14 140.0
1.25 1.1
.46 4.6
1.7 2.2
.25 18.7
1.5 8.9
.50 38.5
1.70 14.2
P/N: 83874 (REV. 627-T) September 2016