Curtis 1232E/34E/36E/38E & 1232SE/34SE/36SE Manual, os 30
7
24 NOVEMBER 2015
High current wiring recommendations: all models
Battery cables (B+, B-)
ese two cables should be run close to each other between the controller
and the battery. Use high quality copper lugs and observe the recommended
torque ratings. For best noise immunity the cables should not run across the
center section of the controller. With multiple high current controllers, use a
star ground from the battery
B- terminal.
Motor wiring (U, V, W)
e three phase wires should be close to the same length and bundled together
as they run between the controller and the motor. e cable lengths should be
kept as short as possible. Use high quality copper lugs and observe the recom-
mended torque ratings. For best noise immunity the motor cables should not
run across the center section of the controller. In applications that seek the lowest
possible emissions, a shield can be placed around the bundled motor cables and
connected to the
B- terminal at the controller. Typical installations will readily
pass the emissions standards without a shield. Low current signal wires should
not be run parallel to the motor cables. When necessary they should cross the
motor cables at a right angle to minimize noise coupling.
Lug assembly: 1236E/SE and 1238E models
Five M8 terminals are provided. Lugs should be installed as follows, using M8
bolts sized to provide proper engagement (see diagram):
• Placethelugontopoftheterminal, followed by a safety
washer with its convex side on top. e washer should be a
SCHNORR 700800, or equivalent.
• Iftwolugsareusedonthesameterminal, stack them so the
lug carrying the least current is on top.
• Tightentheassemblyto9.6±0.9N·m(85±8in-lbs).
2 — INSTALLATION & WIRING: High Current Connections
M8 BOLT
SAFETY WASHER
LUG
M8 TERMINAL
SECTION VIEW EXPLODED VIEW
7.5 mm MIN DEPTH
13.75 mm
MAX DEPTH
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