Baldor mn1854 Manual Do Utilizador

Troubleshooting

  7-1

MN1854

The system troubleshooting procedures involve observing the status of the LED’s.
The tables in this section provide information related to the indications provided by
these devices.

Power

Green

Indicates that AC power is applied and the

supplies are operating.

LED’s will flash during power up tests but only

the Power LED should remain on.

Regen

Yellow

On during Regen activity.

Should remain off.  On when Regen circuit is

active to dump excess bus energy.

OverVoltage/

INTLK

Red

Regen circuit cannot handle excess energy or
Interlock circuit is open.

This fault condition is reset by cycling power.

Temperature

Red

On when internal heatsink temperature exceeds

158

°

F (70

°

C).

This fault condition is reset by cycling power.

Install a fan kit, reduce the load, reduce ambient
temperature, use the Standby current setting.

Stepping

Green

Indicates LinStep+ is sending CW (right LED) or

CCW (left LED) step pulses.

Above several steps per second the LED

becomes continuously illuminated.

Disable/Short

Yellow

On when the Shutdown input is activated by an

external control. The Shutdown signal also
activates the Short output, but does not turn on
the Short LED.

Short LED indicates that a Short Circuit or

Undervoltage condition has occurred. A short
circuit problem can occur because of shorted
or miswired motor leads, or internal fault.

This fault condition is reset by cycling power.
To isolate the problem, disconnect and insulate

the motor leads from the drive connector, but
leave the Interlock jumper installed. Apply
power and step pulses. If the drive does not
invoke the short circuit fault, then it is likely that
the defect is in the motor, wires or the
connections at the drive.

Note: The fault LED and fault Output do NOT activate the same. The fault Output indicates that

one of several fault conditions has occurred. The fault LEDs provide a means of resolving
the source of the fault.

   (General)

The keypad is blank

with no backlight.

The keypad is not receiving +5VDC.

Verify all wiring is correct.
Verify that the +5VDC is between 4.8 and 5.2V.

Display is difficult to

read

Contrast ratio is incorrectly set

Adjust the contrast with the pot on the back of the keypad.

The ON LED is yellow.

FLASH memory is corrupt.

The operating system and user programs must be reloaded.

The ON LED is red.

A Fault has occurred.

The fault can be determined with the keypad or by using

serial status commands (SS, SA, SD).

Motor moves the wrong

Wrong Gear Ratio.

Check distance units

distance

Motor stalled.

Check motor current, inductance, anti–resonance settings
Check Speed Torque required for move, reduce

acceleration.

Motor stalls

Acceleration and/or velocity too high.

Reduce acceleration and/or velocity.

Motor configured incorrectly.

Check motor current, inductance and anti–resonance

settings.

Motor direction is wrong

The motor phases are miswired.

Verify connections, or swap A+ with A–.

The system real direction is reversed.

Change the control’s direction parameter.

The control does not re-

spond to keypad input.

The keypad is disabled.

Check the switch settings on the back of the keypad.

The motor “whines”

The inductance or anti–resonance

setting is incorrect.

Verify the Inductance setting. Operation is best with motors 

4 mH or above. Otherwise, verify the anti–resonance setting.