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Allen-Bradley 825-P User Manual

Allen-Bradley 825-P
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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)
Wa rn i n g
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

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Allen-Bradley 825-P Specifications

General IconGeneral
BrandAllen-Bradley
Model825-P
CategoryPower distribution unit
LanguageEnglish