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CHAPTER 6: SETPOINTS
S3 PROTECTION
THERMAL PROTECTION
SHORT CIRCUIT
MECHANICAL JAM
▼
UNDERCURRENT
CURRENT UNBAL
LOAD INCR ALARM
GROUND FAULT
NEUTRAL IOC
PHASE UV
PHASE OV
UNDERFREQUENCY
OVERFREQUENCY
UNDERPOWER
NEGATIVE SEQ OV
PHASE REVERSAL
VT FUSE FAILURE
ACCELERATION
RTD PROTECTION
TWO SPEED MOTOR
896759A1. cdr
339 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL
Figure 13: Main Protection menu - 2 of 2
S3 UNDERPOWER
U/POWER ALARM FUNC
▼
BLK U/P ON START
U/POWER ALARM PKP
U/POWER ALARM DLY
U/POWER TRIP FUNC
U/POWER TRIP PKP
U/POWER TRIP DLY
OUTPUT RELAY 4
...
BLOCK 3
S3 NEG SEQ OV
NEG SEQ OV FUNCTN
▼
NEG SEQ OV PKP
NEG SEQ OV DELAY
OUTPUT RELAY 4
...
OUTPUT RELAY 6
BLOCK 1
BLOCK 2
BLOCK 3
S3 PHASE REVERSAL
PHASE REVERSAL
S3 VT FUSE FAIL
VT FUSE FAIL
S3 ACCELERATION TIME
ACCEL TIME FUNC
▼
ACCELERATION TIMER
OUTPUT RELAY 4
...
BLOCK 3
S3 RTD PROTECTION
RTD #1
RTD #2
RTD #3
▼
RTD #4
...
RTD #12
RTD TROUBLE ALARM
S3 TWO SPEED MOTOR
HIGH SPEED THERMAL
HIGH SPEED S/C
HIGH SPEED ACCEL T
▼
HIGH SPEED U/CURR
S3 PHASE UV
PH UV FUNC
▼
PH UV PKP
PH UV CURVE
PH UV DELAY
PH UV PHASES
PH UV MIN VOLTAGE
OUTPUT RELAY 4
...
BLOCK 3
S3 PHASE OV
PH OV FUNCTION
▼
PH OV PKP
PH OV DELAY
PH OV PHASES
OUTPUT RELAY 4
...
BLOCK 3
S3 UNDERFREQUENCY
UNDRFREQ FUNC
▼
UNDRFREQ PKP
UNDRFREQ DELAY
MIN VOLTAGE
OUTPUT RELAY 4
...
OUTPUT RELAY 6
BLOCK 1
BLOCK 2
BLOCK 3
S3 OVERFREQUENCY
OVERFREQ FUNC
▼
OVERFREQ PKP
OVERFREQ DELAY
OUTPUT RELAY 4
...
OUTPUT RELAY 6
BLOCK 1
BLOCK 2
BLOCK 3
S3 PROTECTION
S3 RTD #1
RTD #1 APPLICATION
▼
RTD #1 NAME
RTD #1 ALARM
RTD #1 ALARM TEMP
RTD #1 TRIP
RTD #1 TRIP TEMP
RTD #1 TRIP VOTING
OUTPUT RELAY 4
....
BLOCK 3
S3 RTD TROUBLE ALARM
RTD TROUBLE ALARM
▼
OUTPUT RELAY 4
OUTPUT RELAY 5
OUTPUT RELAY 6
S3 HIGH SPEED THERMAL
CURVE MULTIPLIER
S3 HIGH SPEED S/C
S/ C FUNC
▼
S/C PKP
S/C DELAY
...
BLOCK 3
S3 HIGH SPEED ACCEL T
ACCEL T ON STOPPED
▼
ACCEL T ON LOW SPD
S3 HIGH SPEED U/C
U/CURR ALARM FUNC
▼
BLK U/C ON START
U/CURR ALARM PKP
U/CURR ALARM DELAY
U/CURR TRIP FUNC
U/CURR TRIP PKP
U/CURR TRIP DELAY
...
BLOCK 3
6–57
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