Cm-et Lodestar User Manual download pdf (Page 18)

*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.

ELECTRICAL DATA

TO DETECT OPEN AND SHORT CIRCUITS IN ELECRICAL COMPONENTS

Open circuits in the coils of electrical components may be detected by isolating the coil and checking for continuity with an

ohmeter 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 recommend 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 cur-

rent should be measured with the core iron in operating position.

Table 7. Electrical Data For Hoist Components

Transformer

Voltage

Leads *D.C.

Resistance

(Ohms)

230/460 To 115 X1 To X2 22.8

H1 To H2 127

H3 To H4 158

220/380 To 48 X1 To X2 4.0

H1 To H2 127

H3 To H4 158

220/415 To 24 X1 To X2 1.1

H1 To H2 127

H3 To H4 158

Models Brake

Coil

Voltage

Nominal

Current

(Amps)

*D.C.

Resistance

(Ohms)

B, C and F

**230 .17 23.1

J, L, R

**230 .46 4.6

JJ, LL,RR

**230

1.7

2.2

Models Contactor

Coil Voltage

Nominal

Current

(Amps)

*D.C.

Resistance

(Ohms)

B thru RR 115 0.04 297.5

48 0.09 56.3

24 0.19 14.9

Models/

Cap.

Volts-

Phase-

Hertz

H.P

(Kw)

Full

Load

Current

(Amps)

Motor

Leads

*D.C.

Resist.

(Ohms)

B - 1/4 Ton

230/460-3-60

1/4

(.186)

1.6/.81

W-BL to O-

19.4

W-B to O-B

220/380-3-50

1.9/.85

W to O-G

Y-B to Y-BL

39.3

220/415-3-50

1.9/.80

Y-B to Y-G

Y-BL to Y-G

C - 1/4 Ton

F - 1/2 Ton

230/460-3-60

1/2

(.373)

1.7/.85

W-BL to O-

12.4

W-B to O-B

220/380-3-50

2.0/1.0

W to O-G

Y-B to Y-BL

24.5

220/415-3-50

2.0/1.0

Y-B to Y-G

Y-BL to Y-G

Models/

Cap.

Volts-

Phase-

Hertz

H.P.

(Kw)

Full

Load

Current

(Amps)

Motor

Leads

*D.C.

Resist.

(Ohms)

J - 1/2 Ton

L- 1 Ton

R - 2 Ton

230/460-3-60

(.746)

4.1/2.2

W-BL to O-BL

5.1

W-B to O-B

230/380-3-50

4.6/2.3

W to O-G

Y-B to Y-BL

10.2

230/415-3-50

4.2/2.1

Y-B to Y-G

Y-BL to Y-G

LL- 1 Ton

RR - 2 Ton

230/460-3-60

(1.49)

7.3/3.9

W-BL to O-BL

2.3

W-B to O-B

230/380-3-50

8.6/3.7

W to O-G

Y-B to Y-BL

4.6

230/380-3-50

8.6/3.9

Y-B to Y-G

Y-BL to Y-G

MOTOR DATA

1 2 ... 13 14 15 16 17 18 19 20 21 22 23 ... 47 48

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Cm-et Lodestar User Manual Page 18

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