Rockwell Automation 193-EDN E1Plus Overload Relays - DeviceNet Module - Manual (Page 47)

Publication 193-UM006A-EN-P – October 2005
Troubleshooting 5-7
Trip and Warning
Troubleshooting
Procedures The following table lists the possible causes for each trip type and the
recommended action to take.
Table 5.3 Trip/Warn LED Troubleshooting Procedures
Overload 1. Motor overloaded
2. Improper setting
1. Check and correct source of overload (load, mechanical
transmission components, motor bearings).
2. Set FLA dial and trip class to match the motor and application
requirements.
Phase Loss 1. Missing supply phase
2. Poor electrical connection
3. Contactor operation
4. Improper device type
1. Check for open line (i.e. blown fuse).
2. Check all power terminations from the branch circuit-protecting
device down to the motor for proper tightness. Ensure that the
overload connection to the contactor is secure.
3. Inspect contactor for proper operation.
4. Bulletin 193S or 592S are required for single-phase
applications.
Jam 1. Motor current has exceeded the
programmed jam level
2. Improper parameter settings
1. Check for the source of the jam (i.e. excessive load or
mechanical transmission component failure).
2. Parameter 20, Jam Trip Level, is set too low for the application.
Check to ensure that the FLA dial is set correctly.