236 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
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