Aerotech 6020HRJ, Руководство пользователя

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6020HRJ/8030J User’s Manual Maintenance and Repair
Version 1.1
Aerotech, Inc
. 4-3
Table 4-1. Troubleshooting (Continued)
Symptom Possible Cause Procedure
- Reverse tach connection Reverse tach connections to amplifiers
- Open tach connection Check for absence of tach voltage at input to amplifier
- Improper scaling
Check scaling adjustments (Section 3.4.2.). If terminals
2 or 3 are used for the tach signal, adjust R9 or R12
CW.
Motor runs away
- Defective amplifier
The pre-amplifier may be latching up. Short terminals 6
and 8 (shutdown). If this corrects the problem, the per-
amplifier is defective. If the problem persists, the
power section is probably defective.
- Improper adjustments
Verify current limit adjustment (Section 3.4.1.) is set
correctly.
Re-check gain adjustment (R22) - Section 3.4.2.
- Improper set-up
Is the amplifier being used in a proper application?
Check status of jumpers J1 – J4 (Section 3.2.).
Check contact connections to terminals 6, 7, and 8
(torque limits) – see Figure 3-1. Circuits should be
totally open circuited when torque limit is not
requested.
Verify that R18 is in place.
Poor servo response or
output performance
- Improper motor
application
Make sure that the correct motor is being used with the
amplifier (Section 3.5.).
- Improper adjustments
Re-check scaling and GAIN adjustments (Section
3.4.2.). First turn the gain adjustment (R22) CW. Next,
turn the tach scaling (either R9 or R13 depending on
tach connection) CW.
System oscillates
- Improper motor
application
If adjustments do not resolve the oscillation, review the
motor specifications and verify that the amplifier is
being applied to the correct motor. If necessary, the
compensation components may have to be changed
(Section 3.5.).
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