Rockwell Automation 825-P Modular Protection System for Motors User Manual - Manual (Page 34)

34 Rockwell Automation Publication 825-UM004D-EN-P - November 2012
Chapter 3 Front Panel Operation
The display changes for the following relay conditions in the order of precedence
(see Table 3):
• Status failure
• Trip condition time to trip (if under 10000 seconds)
• Warning
• Lockout start request
• Emergency start in progress
Front Panel Automatic
Messages
The relay displays automatic messages under the conditions described in Table 3.
Front Panel Messages
Each time the relay trips, it automatically displays a front-panel message and the
Trip LED illuminates. If a trip occurs during a critical alarm status condition, the
Trip LED flashes (see
Self-Tests on page 156 ).
Trip message
The Trip message describes the type of trip that occurred:
Table 3 - Front Panel Automatic Messages
Condition Front Panel Message
Relay detecting any failure Displays the type of latest failure (see Chapter 11 ).
Relay trip has occurred Displays the type or cause of the trip. (See the list of the types of Trip
messages under the heading Front Panel Messages.
Motor running overload Displays the predicted time to thermal element trip in seconds.
Relay alarm condition has
occurred Displays the type of alarm (see Alarm or Warning Messages).
When a start is requested during
a lockout condition Displays the type of lockout condition (see Lockout Messages).
Control input set to
disable protection Displays “Protect Disabled By Control Input”.
During emergency start Displays “Emergency Start”.
• Overload Trip
• Locked Rotor Trip
• Undercurrent Trip
• Jam Trip
• Current Imbalance Trip
• Short Circuit Trip
• Ground Fault Trip
• Speed Switch Trip • Undervoltage Trip
• Overvoltage Trip
• Underpower Trip
• Power Factor Trip
• Reactive Power Trip
• Phase Reversal Trip
• Underfrequency Trip
• Overfrequency Trip • RTD Trip
• PTC Trip
• Start Time Trip
• RTD Fail Trip
• PTC Fail Trip
• Comm Idle Loss Trip
• Remote Trip
• Comm Fail Trip