Schweitzer Engineering Laboratories SEL-701, Instruction Manual

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701 Motor Protection Relay
Date Code 20010719
ASCII Serial Port Operation
Command Explanations
6.30
Table 6.19 SEL-701 Relay Word & Corresponding TAR Command
TARGET R (Level 1 or 2)
Resets front-panel tripping targets and releases the trip signal if the fault
condition has vanished and no lockout conditions are present. If the relay tripping
targets do not reset when you execute the
TARGET R command at the relay serial port
or use the front-panel menu selection Reset Trip/Targets, verify that the fault condition
and all lockouts have cleared.
TIME (Level 1 or 2)
TIME displays the relay clock. To set the clock, type TIME and the desired
setting, then press <ENTER> . Separate the hours, minutes, and seconds with colons,
semicolons, spaces, commas, or slashes.
=> TIME
16:02:21
=>
Figure 6.18 TIME Command Example.
Table 6.19 SEL-701 Relay Word & Corresponding TAR Command
a
TAR Relay Word Bits
1
STARTING RUNNING STOPPED JAMTRIP LOSSALRM LOSSTRIP 46UBA 46UBT
2 49A 49T THERMLO NOSLO TBSLO ABSLO * *
3 50P1T 50P2T 50N1T 50N2T 50QT 50S 50G1T 50G2T
4 47T TRGTR START 52A SPDSTR SPEEDSW RTDBIAS RTDFLT
5 WDGALRM WDGTRIP BRGALRM BRGTRIP AMBALRM AMBTRIP OTHALRM OTHTRIP
6 27P1 27P2 59P1 59P2 59G 81D1T 81D2T 81D3T
7 37PA 37PT 55A 55T VARA VART * *
8 LT1 LT2 LT3 LT4 RB1 RB2 RB3 RB4
9 SV1 SV2 SV3 SV4 SV1T SV2T SV3T SV4T
10 IN1 IN2 IN3 IN4 IN5 IN6 IN7 *
11 TRIP OUT1 OUT2 OUT3 ALARM * * *
* Bit not used; reserved for future expansion.
a
See Section 9: Event Analysis for additional information on the meaning of each target LED condition.