DC Hoist Motor, Brake, and Encoder/Tachometer
2-27
2
iControl DC
Encoder Isolation The encoder housing must be electrically isolated from the machine
(ground). To check this:
1. Measure the resistance between the encoder case and the frame of the motor. The mea-
sured value must be “infinite” for complete isolation.
Encoder Wiring A shielded cable with an appropriate connector at the encoder end is
provided. The controller end of the cable exposes trimmed and tinned individual conductors.
The encoder cable must be routed into the controller cabinet in a separate conduit. The follow-
ing illustration shows the encoder wiring at the controller end of the cable.
These connections are shown for illustration purposes only. Follow the job print instructions
for your specific encoder connections — they may be different than those shown here. Z+ and Z-
connections are rarely used at the controller-end.
1. Connect the cable to the encoder using the cable/connector provided.
2. Route the cable through a separate conduit to the controller cabinet.
3. Connect the controller end of the cable as shown in the job prints.
4. Verify that the encoder shield is soldered to the drain wire (wire without insulation).
Keep the cable shield connection as short as possible — connect it to the nearest shield
terminal.
The encoder used must be rated up to 15-volts.Do not coil excess Encoder cable near high voltage
components — noise may be induced. If the cable must be shortened, trim it at the controller end. Do
not cut and re-splice in the middle of the cable or shorten at the Encoder end.
Quadrature
data from
encoder
Drain/Shield
Power to
encoder
iBox
Purple
Gray
Green
Blue
Black
White
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