Recommended Control And Signal Wire Sizes; Recommended Motor Lead Lengths; Table 3.6 - Recommended Power Wire Sizes For 24 To 43 Amp Drives; Table 3.7 - Recommended Terminal Strip Wire Sizes - Reliance electric GV3000/SE Hardware Reference, Installation, And Troubleshooting Manual

3.2.2.3 Recommended Control and Signal Wire Sizes

3.2.2.4 Recommended Motor Lead Lengths

3-6
Table 3.6 – Recommended Power Wire Sizes for 24 to 43 Amp Drives
Type of Wiring
AC Input Power
and Ground
Output Power
and Ground
DC Bus Output,
Braking Resistor
The recommended wire sizes to connect I/O signals to the terminal strip on the
Regulator board are shown in table 3.7. Recommended terminal tightening torque is
9.5 Newton-meters (85 in-lb). Operator controls can be up to 303 meters (1000 feet)
from the drive.
Table 3.7 – Recommended Terminal Strip Wire Sizes
Terminals
4-25 (Regulator Board Terminal Strip)
28-31 (Output Relay Terminal Strip)
To reduce line disturbances and noise, motor lead length should not exceed 76 meters
(250 feet) for any non-Reliance Electric motor or any non-inverter duty motor.
When total lead length exceeds 76 meters (250 feet), nuisance trips can occur caused
by capacitive current flow to ground. Note that these capacitively-coupled currents
should be taken into consideration when working in areas where drives are running. If
the motor lead length must exceed these limits, the addition of output line reactors or
other steps must be taken to correct the problem. Refer to table 3.9 for a list of
compatible reactors.
For Reliance Electric inverter duty motors, use the recommended lead lengths shown
in table 3.8 as a guideline.
Your application may be restricted to a shorter lead length due to:
•
the type of wire
•
the placement of wire (for example, in conduit or a cable tray)
•
the type of line reactor
•
the type of motor.
Figure 3.3 illustrates how to calculate motor lead lengths.
Terminals
L1, L2, L3
PE
U, V, W
45(-), 47(+)
48(-), 47(+)
20 AWG to 14 AWG, 0.5 to 2 mm2
GV3000/SE AC Bookshelf Drive Hardware Reference, Version 6.06
Size of Wire (Maximum)
2
6 AWG, 16 mm
Wire Size