CONTREX ML-Drive - Manual (Page 21)

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Figure 2-3 I/O Power / Isolated
Figure 2-4 I/O Power / Non-Isolated
INPUTS
NOTE: The installation of this motor control must conform to area and local electrical
codes. See The National Electrical Code (NEC,) Article 430 published by the
National Fire Protection Association, or The Canadian Electrical Code (CEC).
Use local codes as applicable.
I/O Power (J4 pins 1, 2)
For isolated operations, the
Frequency Inputs (J4 pins 3, 4, 5),
the Digital Inputs (J4 pins 6-14 ) and
the Digital Outputs (J4 pins 15-18)
require an external source of
+5VDC power.
CAUTION: The ML-Drive is
shipped from the factory with J3
and J4 jumpers. You must
remove the J3 and J4 jumpers
before you connect the external
power supply or you can damage
the equipment. Do not exceed
+5VDC on the I/O Power input.
Use the Auxiliary Power Output
(J3 pins 1, 2) to supply power for
non-isolated operations. The
ML-Drive is shipped from the factory
with the wiring defaulted to non-
isolated operation.
+5VDC
External
Power
Supply
1
2
J4
+5V
COM
1
2
J4
COM_AUX
1
2
J3
+5V
Do not connect the External Power Supply
Common to Earth Ground. *
*
+5VDC MAXIMUM