Lenze E94P PositionServo with MVOB - Manual (Page 99)

S94H201E_13426446_EN L 97
Diagnostics
8.4.2 Fault Event
When the drive encounters any fault, the following events occur:
• Drive is disabled
• Internal status is set to “Fault”
• Fault number is logged in the drive’s internal memory for later interrogation
• Digital output(s), if configured for “Run Time Fault”, are asserted
• Digital output(s), if configured for READY, are de-asserted
• If the display is in the default status mode, the LEDs display F0XX where XX is current fault code.
• “Enable” LED turns OFF
8.4.3 Fault Reset
Fault reset is accomplished by disabling or re-enabling the drive depending on the setting of the [Fault
Reset] parameter (section 5.3.8).
If [On Disable] is selected, the fault is cleared when the drive is disabled.
If [On Enable] is selected, the fault is cleared when the drive is re-enabled.
8.4 Troubleshooting
DANGER!
Hazard of electrical shock! Circuit potentials are up to 480 VAC above earth ground.
Avoid direct contact with the printed circuit board or with circuit elements to prevent the
risk of serious injury or fatality. Disconnect incoming power and wait at least 60 seconds
before servicing drive. Capacitors retain charge after power is removed.
Before troubleshooting
Perform the following steps before starting any procedure in this section:
• Disconnect AC or DC voltage input from the PositionServo. Wait at least 60 seconds for the power
to discharge.
• Check the PositionServo closely for damaged components.
• Check that no foreign material has fallen or become lodged in the PositionServo.
• Verify that every connection is correct and in good condition.
• Verify that there are no short circuits or grounded connections.
• Check that the drive’s rated phase current and RMS voltage are consistent with the motor
ratings.
For additional assistance, contact your local PositionServo authorized distributor.
Problem External line fuse blows
Possible Cause Line fuses are the wrong size
Motor leads or incoming power leads are shorted to ground.
Nuisance tripping caused by EMI noise spikes caused by poor grounding and/or
shielding.
Suggested Solution • Check that line fuses are properly sized for the motor being used.
• Check motor cable and incoming power for shorts.
• Check that you follow recommendation for shielding and grounding listed in section
“shielding and grounding” early in this manual.