Rockwell Automation 825-P Modular Protection System for Motors User Manual - Manual (Page 237)

Rockwell Automation Publication 825-UM004D-EN-P - April 2012 237
Relay Word Bits Chapter C
46UBA 4 Phase Current Unbalance Alarm. Assert when the relay issues an alarm/warning in response to a current unbalance condition, as defined by
that function and its settings.
RTDA 3 Winding/Bearing RTD Overtemperature Alarm/Warning.
55A 2 Power Factor Alarm. Assert when the relay issues a power factor element alarm/warning.
50N2T 1 Definite-Time Neutral (Core Balance) Overcurrent (Warning Level.
50G2T 0 Definite-Time Residual Overcurrent (Warning Level.
6 VARA 7 Reactive Power Alarm. Assert when the relay issues a reactive power element alarm/warning.
37PA 6 Underpower Alarm. Assert when the relay issues an underpower element alarm/warning.
27P2T 5 Phase Undervoltage Alarm/Warning Definite time delayed.
59P2T 4 Phase Overvoltage Alarm/Warning Definite time delayed.
SPDSAL 3 Speed Switch Alarm. Asserts when the relay does not detect a speed switch contact closure within a settable warning period from the
beginning of a motor start.
81D1A 2 Definite-Time Over- and Underfrequency Element (Warning Level 1). Assert when the frequency has been either above or below the element
set point for a definite time.
81D2A 1 Definite-Time Over- and Underfrequency Element (Warning Level 2). Assert when the frequency has been either above or below the element
set point for a definite time.
OTHALRM 0 Other Temperature Alarm. Asserts when any healthy Other RTD temperature exceeds its alarm/warning set point.
7 AMBALRM 7 Ambient Temperature Alarm. Asserts if the healthy ambient RTD temperature exceeds its alarm/warning set point.
SALARM 6 Pulses for the following conditions: Setting Changes, Access Level Changes, and three unsuccessful password entry attempts.
WARNING 5 Asserts when any of the protection elements (warning level) operates or when the relay detects self-test failure (see Table 89), RTD/PTC faults,
or DeviceNet communications alarms.
LOADUP 4 Asserts when the selected load parameter exceeds an upper level setting (see Table 34).
LOADLOW 3 Asserts when the selected load parameter drops below a lower level setting (see Table 34).
TIMER1T
TIMER2T
2
1
Output of the Timer Function logic (see Table 39).
50P2T 0 Definite-Time Phase Overcurrent (Short Circuit Warning Level).
8 STOPPED 7 Asserts when the motor is stopped.
RUNNING 6 Asserts when the motor is running.
STARTING 5 Asserts when the protected motor is starting.
STAR 4 Asserts when the Star-Delta Starting function issues a command to switch motor configuration to Star (see Star-Delta Starting on page 2-28).
DELTA 3 Asserts when the Star-Delta Starting function issues a command to switch motor configuration to Delta (see Star-Delta Starting on page 2-28).
START 2 Output of the motor start logic.
* 1 Reserved for future use.
* 0 Reserved for future use.
9 IN1
IN2
IN3
IN4
IN5
7
6
5
4
3
Control inputs IN1…IN5 (inputs IN3…IN5 are optional).
* 2 Reserved for future use.
Table 112 - Relay Word Bit Definitions for the 825-P (Sheet 3 of 4)
Row # Bit Definition