IMPULSE
®
•G+ & VG+ Series 4 Technical Manual
November 2020
Page 196
6 Troubleshooting
6.1 Troubleshooting the VFD
In this troubleshooting section, “Check,” means investigating whether an item is functioning and in an acceptable
physical condition, and then taking corrective action (adjusting, fixing, replacing, etc.) as necessary. In the
“Corrective Action” column, you may not have to perform all of the steps to correct the problem.
6.1.1 Maintenance and Inspection
This section describes basic maintenance and inspection procedures for the IMPULSE
®
•G+ and VG+ Series 4.
Table 6-1: Maintenance and Inspection
Alarms and Faults are described as follows:
• Fault: Brake is set, operation indicator lights flash, fault is displayed on keypad and fault contact output terminal
MB-MC is activated. The reset key must be pressed, a multi-function digital input set for fault reset must be
enabled, or power must be cycled in order to continue operation.
• Alarm: Brake does not set, operation continues, alarm is displayed on the keypad, fault contact output is not
activated.
Component Check Corrective Action
External terminals, connectors,
mounting screws, etc.
Loose screws or connectors Securely tighten.
Heatsink Build-up of dust and dirt Blow with dry, compressed air (57-86 psi).
Printed Circuit Board (PCB) Accumulation of conductive dust or oil Blow with dry, compressed air (57-86 psi).
If dust and oil cannot be removed, replace
the board.
Cooling Fan Abnormal noise and vibration Clean or replace the fan.
Power Components Accumulation of dust or dirt Blow with dry, compressed air (57-86 psi).
To Next Page
Loading...
Need help?
General
