MCE iControl User Manual

Construction Mode
2-48 Manual # 42-02-7223
16. The controller is fully tested according to the connections shown in the job prints before
being shipped from MCE, however, depending upon lighted LEDs noted in Step 15
above:
• If Delta P.R., Wye P.R., and 30
0
P.R. were all ON, interchange any two of the three
wires on the primary winding of the Drive Isolation Transformer.
• If Delta P.R. and 30
0
P.R. were ON, interchange the wires on the SCR Drive between
terminals X1 and X2 or X1 and X3.
•If Wye P.R. and 30
0
P.R. were ON, interchange the wires on the SCR Drive between
terminals Y1 and Y2 or Y1 and Y3.
•If only the 30
0
P.R. LED was ON, then move the wires on the SCR Drive from X1 to X2,
X2 to X3, and X3 to X1. It may be necessary to repeat this step if the 30
0
P.R. LED is
still ON after power up.
17. If the 30
0
P.R. LED remains on even after the X1, X2, and X3 wires have been moved a
second time, verify Drive Isolation Transformer labeling:
• Interchange any two of the three wires feeding the Drive Isolation Transformer pri-
mary.
• Interchange wires X1 and Y1 on the SCR Drive.
• Interchange wires X2 and Y2 on the SCR Drive.
• Interchange wires X3 and Y3 on the SCR Drive.
• Power up and check the 30
0
P.R. LED.
•If the 30
0
P.R. LED remains ON, power down, then move the wires on the SCR Drive
from X1 to X2, X2 to X3, and X3 to X1. It may be necessary to repeat this step if the 30
0
P.R. LED is still ON after an additional power up.
• If all P.R. LEDs do not turn OFF at this point, there is a probable defect not related to
transformer hookup.
18. If any of the Low Line red LEDs were on, power down and:
• Remove the SCR Drive cover.
• Check that the 20-pin header (U81) with resistors and jumper plugs is firmly plugged
into the SCR-LGA board (top center) and that the number on the edge of the header
matches the header number on page -SCR of the job prints. Please refer to “Current
Limit Adjustments (System 12 SCR Drive)” on page 2-63.
19. If, after completing the checks and adjustments listed in Steps 14 through 18, the Drive
Ready LED still does not light, contact MCE Technical Support.
20. If the Drive Ready indicator did light, restore hoist motor brush contact. Reconnect the
brake terminal B1 wire. Please refer to “Motor Field Calibration (System 12 SCR Drive)”
on page 2-53.

MCE iControl Specifications

General

Brand	MCE
Model	iControl
Category	Controller
Language	English