High Current Wiring Recommendations; Battery Cables (B+, B-); Motor Wiring (U, V, W) - Curtis 1232E Manual

Curtis 1232E/34E/36E/38E & 1232SE/34SE/36SE Manual,
2 4 N O V E M B E R 2 0 1 5
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):
• Place the lug on top of the terminal, followed by a safety
washer with its convex side on top. The washer should be a
SCHNORR
• If two lugs are used on the same terminal, stack them so the
lug carrying the least current is on top.
• Tighten the assembly to 9.6 ±0.9 N·m (85 ±8 in-lbs).
MIN
7.5 mm DEPTH
MAX
13.75 mm DEPTH
High current wiring recommendations: all models

Battery cables (B+, B-)

These 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

Motor wiring (U, V, W)

The three phase wires should be close to the same length and bundled together
as they run between the controller and the motor. The 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
B-
connected to the 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.
os
2 — INSTALLATION & WIRING:
700800, or equivalent.
M8 BOLT
SAFETY WASHER
LUG
M8 TERMINAL
SECTION VIEW
B-
terminal.
30
High Current Connections
EXPLODED VIEW
7