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Rockwell Automation Publication 825-UM004D-EN-P - April 2012
Chapter C
Relay Word Bits
1
49T
7
Thermal (Overload) Trip. Assert when the relay issues a thermal element trip because of locked rotor starting or running overload conditions.
LOSSTRIP
6
Load-Loss Trip. Assert when the relay detects a load-loss as defined by that function and its settings.
JAMTRIP
5
Load-Jam Trip.
46UBT
4
Phase Current Unbalance Trip. Assert when the relay issues a trip in response to a current unbalance condition, as defined by that function and
its settings.
50P1T
3
Definite-Time Phase Overcurrent (Short Circuit Trip Level.
RTDT
2
Winding and Bearing RTD Overtemperature Trip.
PTCTRIP
1
Asserts when measured PTC loop resistance is greater than trip value.
50G1T
0
Definite-Time Residual Overcurrent (Trip Level.
2
VART
7
Reactive Power Trip. Assert when the relay issues a reactive power element trip.
37PT
6
Underpower Trip. Assert when the relay issues an underpower element trip.
27P1T
5
Phase Undervoltage Trip Definite time delayed.
59P1T
4
Phase Overvoltage Trip Definite time delayed).
47T
3
Phase Reversal Trip. Asserts when the relay detects a phase reversal condition.
55T
2
Power Factor Trip. Assert when the relay issues a power factor element alarm or trip.
SPDSTR
1
Speed Switch Trip. Asserts when the relay does not detect a speed switch contact closure within a settable trip period from the beginning of a
motor start.
50N1T
0
Definite-Time Neutral (Core Balance) Overcurrent.
3
SMTRIP
7
Asserts when Start Motor Timer times out.
81D1T
6
Definite-Time Over- and Underfrequency Element (Trip Level 1). Assert when the frequency has been either above or below the element set
point for a definite time.
81D2T
5
Definite-Time Over- and Underfrequency Element (Trip Level 2). Assert when the frequency has been either above or below the element set
point for a definite time.
OTHTRIP
4
Other Temperature Trip. Asserts when one or more healthy Other RTD temperature exceeds the trip set points.
AMBTRIP
3
Ambient Temperature Trip. Asserts when the healthy ambient RTD temperature exceeds its trip set point.
PTCFLT
2
Indicates faulted/shorted thermistor.
RTDFLT
1
Asserts when an open or short circuit condition is detected on any enabled RTD input, or communication with the external RTD module has
been interrupted.
MCMFLT
0
Asserts when the MCM module detected does not agree with the relay part number.
4
COMMIDLE
7
DeviceNet Card in programming mode.
COMMLOSS
6
DeviceNet communication fail.
REMTRIP
5
Remote Trip Control Input Asserted.
COMMFLT
4
Internal communication time-out.
*
3
Reserved for future use.
*
2
Reserved for future use.
*
1
Reserved for future use.
*
0
Reserved for future use.
5
49A
7
Thermal (Overload) Alarm. Assert when the relay issues a thermal element alarm/warning because of locked rotor starting or running
overload conditions.
LOSSALRM
6
Load-Loss Alarm/Warning. Assert when the relay detects a load-loss as defined by that function and its settings.
JAMALRM
5
Load-Jam Alarm/Warning.
Table 112 - Relay Word Bit Definitions for the 825-P (Sheet 2 of 4)
Row #
Bit
Definition
Summary of Contents for 825-P
Page 1: ...Modular Protection System for Motors Catalog Number 825 P User Manual...
Page 4: ...4 Rockwell Automation Publication 825 UM004D EN P November...
Page 64: ...64 Rockwell Automation Publication825 UM004D EN P November 2012 Chapter 5 Using MPS Explorer...
Page 234: ...234 Rockwell Automation Publication 825 UM004D EN P April 2012 Chapter B ParameterList...
Page 265: ......