Rockwell Automation 1503FC IntelliVAC Contactor Control Module - Series E - Manual (Page 45)

Monitoring and Troubleshooting 5-7
1503-UM053B-EN-P – June 2013
Contactor Status (cont.)
Table 5.D – Module Troubleshooting
Problem or Trip Indicated Indication of the following conditions Possible Solutions
Contactor does not energize • Motor Protection activated
• Both Status LEDs ‘Off’ • Investigate and reset
• Check Control Power
• Loose connections in control circuit
• Verify IntelliVAC power input plug is in place and
properly seated
• Verify internal control fuse has not opened (Refer to
Figure 4.1 for location)
• Module Status LED ‘Red’ upon power up • IntelliVAC faulted. Cycle control power to reset.
Replace IntelliVAC if unsuccessful.
• Module Status ‘Red Flash 1’ upon power up • Improper setting of dip switches. Check settings and
cycle control power.
• Loose connection in control circuit. • Verify contactor auxiliary set up. Reference Publication
1502-UM052_-EN-P (400A) or 1502-UM051_-EN-P
(800A) – Auxiliary Contact Set-up Procedure.
• Verify circuit continuity (is contactor plug connected
properly?)
Contactor closes momentarily and will not
reclose. • Module status LED ‘Red’ (Series C) and Contactor
Status LED ‘Off’
or
• Module status LED ‘Yellow – Flashing’ and Contactor
Status LED ‘Off’ (Series D)
• Undervoltage fault (no TDUV), control voltage dipped
below trip point. Verify voltage levels are 110 to 240
VAC, 110 to 250VDC
Contactor fails to close. • Module status LED ‘Green’ and Contactor Status LED
‘Red Flash 1’ (Series C)
or
• Module status LED ‘Yellow-R1’ (Series D) and
Contactor Status LED ‘Off’
• Coil damaged or connections are loose. Repair and
cycle control power (Series C).
• Auxiliary Contact Assembly improperly adjusted.
Reference Publication 1502-UM052_-EN-P (400A) or
1502-UM051_-EN-P (800A) – Auxiliary Contact Set-up
Procedure. Cycle control power to reset (Series C).
• Armature Plate obstructed from closing to coil face.
Verify no foreign material behind the armature plate.
Cycle control power to reset.
• Both status LEDs ‘Off’ • Check internal control fuse. Verify IntelliVAC operation
in test mode before applying Medium Voltage. (Refer to
Fig. 4.1 for location.)
Refer to Table 5.A (Series C) or Table 5.B (Series D) for definition of Module
LED states.