Rockwell Automation MPMA Integrated Multi-Axis Linear Stages User Manual

Page 79

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Rockwell Automation Publication MPMA-UM001B-EN-P - November 2010

79

Troubleshooting

Chapter 9

Table 8 - Troubleshooting Procedures for Ball Screw Linear Stages

Drive reporting error E07 or E20.

Environment is electrically noisy and cable shield
is compromised.

Verify carrier cable module and extension cable shield
termination are secure.

Drive reporting error E05.

Defective motor

Disconnect the flex cable and probe the Motor Power
connector (white Mate-N-Lok) in the open Junction Box.
1. Measure the resistance between pins 1 and 2, pins 2 and

3, and pins 1 and 3, and evaluate the measurements with
the following criteria:

The resistance values will vary depending on the MPAS

model, but must be less than 15 Ohms.

The difference between the three resistance

measurements must be less than 1 Ohm.

2. There should be an open circuit between pins 1, 2, 3, and

pin 4 (GND).

If any measurement is not in range, return for factory service.

Cable carrier module exceeds its useful life of
10,000,000 cycles and is starting to fail.

Replace cable carrier module; refer to page

66

for

replacement instructions.

Description

Possible Cause

Corrective Action

Motor Power Connector Pin 1

ATTENTION: Lockout and tagout input power before servicing
the linear stage.

Description

Possible Cause

Corrective Action

Carriage is not moving but the
controls report axis motion.

Rotary motor coupling broken or slipping.

Remove rotary motor and verify integrity of coupling.

Excessive carriage play.

Motor coupling set screw is loose.

Tighten motor coupling set screw.

Ball screw end blocks have excessive wear.

Return stage to factory for service.

Drive reporting error E05.

Motor is damaged.

Check that the phase-to-phase resistance of each motor
phase. The resistance should be equal, and not shorted to
ground or to the shield.

Kinetix 6000 drive or Kinetix 2000
drive reporting error E19.
Ultra3000 drive reporting error E19,
E22, or E23.

Brake on the motor does not release.

Manually release brake, and check that motor shaft is free to
turn and the bearing feels smooth.

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