Contactor connections (optional), 4" -ain – LEESON PWM DC Control: 174299 User Manual
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10
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/),
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4"
-AIN
Figure 7. Optional Coil Connections
A contactor may be connected between the battery and the drive as shown in Figure 8. The contac-
tor and precharge circuit allow the drive to be soft charged which helps prevent sparking when the
battery is being connected to the drive. Another advantage of using the contactor is that it serves as
an additional safety device to protect against a run away condition, some cases of reverse polarity
battery connection, and excessive charging voltages.
Once the drive is enabled, the coil output will energize and the contactor will close. The contactor’s
coil voltage must be the same voltage rating as the battery supply to the drive. The COIL+ can source
up to 1 Amp. See Figures 7 and 8 for wiring information. An example of a contactor we recommend
would be White Rogers 586 or 124 type.
Leave COIL+ and COIL- open if a contactor is not used.
DO NOT place a jumper across COIL+ and
COIL-, doing so will damage the drive.
Contactor Connections (Optional)