OEM650/OEM650X • TROUBLESHOOTING

Symptoms

Possible Causes

Solutions

 

 

 

 

 

 

Power LED is not

The drive is not receiving

on (illuminated)

adequate DC voltage

Verify the VDC+ and VDC- connection

Verify you power supply is producing adequate power

Verify that there is DC voltage at the drive and at the VDC+ and VDC- connection

 

Drive screw are terminals loose

Tighten screws— do not tin wires

 

 

 

Power LED is

DC Line voltage is too low

Check DC line voltage (24VDC

flashing

I/O incorrectly connected

minimum)

 

Internal damage to the drive

Remove 25-Pin D connector to isolate

 

 

the problem

 

 

Return drive to Compumotor for

 

 

servicing

 

 

 

There is little or no

The current select resistor is not

Check for current select resistor,

holding torque; the

installed or loose

tighten screws, check wiring

power LED is on;

 

 

the motor fault LED

The incorrect current select

Verify the current selector resistor with

is off

resistor is being used

the current table— measure the resistor

 

 

with an ohmmeter

 

Jumper #1 removed and you want

Install Jumper #1. Double check the

 

between 7.5A - 2.5A

desired resistor value

 

Remote input activated

Remove 25-pin D connector to isolate

 

 

the problem

 

Auto standby function enabled

Check jumpers #9 and #10

 

 

 

The motor fault LED

The motor is not connected

Connect the motor

is on

 

 

 

A motor winding is open

Measure winding continuity— check the

 

 

series connections for an 8-leaded

 

 

motor

The drive has detected a short circuit in the motor wiring

The drive is overheating

The drive may have internal damage

Check for miswiring— carefully check the motor wires for loose strands shorting the windings

Verify that the drives heatsink does not exceed 55°C

Return the drive to Compumotor for servicing

The motor moves

Motor current is set incorrectly

Check the current select resistor and

erratically at low

 

verify that the current is set correctly

speeds

 

 

Indexer pulses are being sent to the drive erratically

Verify, with an oscilloscope, that the indexer pulses are being sent at a constant rate and are not being frequency modulated

Motor resolution is set for 200 or 400 steps per revolution

Full and half step modes will cause the motor to run roughly at low speeds

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Parker  Products OEM650X, OEM350X manual Symptoms Possible Causes Solutions

OEM650X, OEM650, OEM350, OEM350X specifications

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