Pre power checks, 3a. grounds/grounding, Regulator board terminals – GE Industrial Solutions DV-300 DC Quick Start User Manual

Page 9: 3b. meggering, 3c. connections

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DV-300 Adjustable Speed Drives

—————— Quick Start up guide ——————

QS

9

3. PRE POWER CHECKS

3a. Grounds/grounding

Verify an AC power ground wire exists from the in-
coming power / isolation transformer to the DV-300
input ground terminal.

Verify the ground lead of the DV-300 output terminal is
wired to the motor, or the motor is properly grounded.The
DV-300 power supply, terminal point 11, may be
referenced to ground through a different ground circuit,
or may be wired to the same ground by connecting terminal
point 11 to terminal point 10 or 20.

Verify the AC input leads, DC output armature and field
leads, and control wiring to and from the drive terminals
are not grounded.

Use a digital voltmeter or equivalent to take these
readings if the wiring is attached to the drive. Remember
that the 0V terminal may be intentionally grounded.

Isolated field wiring generally reads at least 2-3 MW
to ground.

3b. Meggering

Cabling must be disconnected or isolated from the DV-
300 drive when meggered or hi potted. Drive damage
could result if this advice is not followed.

3c. Connections

Without applying power, double check all connections
and wire terminals to make sure they are tight.

Verify each connection is wired per wiring diagrams,
and are appropriate for the current and voltage
levels specified.

Regulator board terminals

1,2 = programmable analog input 1,

3,4 = programmable analog input 2,

5,6 = programmable analog input 3

7 = + 10 V , 8 = -10V, 9 = +/- 10 V supply common ,

10 = ground,

11 = common

12 = enable input, 13 = start input,

14 = fast stop input, 15 = external fault input,

16 = common point for terminals 12 through 15,

17 = no connection,

18 = common for the 24V power supply,

19 = + 24 VDC output, 20 = ground

XE1 ( ENC1) 9 pin sinusoidal encoder input

XE2 ( ENC2) 9 pin incremental encoder input

DC tach input: - , + terminals for DC tach. max volts

≤ 108 no jumper,

108

≤ max volts ≤ 188 VDC jumper B & C

188

≤ max volts ≤ 340 VDC jumper A & C

20 = Screen connection (PE) (connected w/housing)

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