Functions
2.8 Motor Protection
SIPROTEC, 7SJ62/64, Manual
C53000-G1140-C207-2, Release date 01.2008
181
2.8.4.2 Information List
4401 Load Jam Prot. OFF
ON
Alarm Only
OFF Load Jam Protection
4402 Load Jam I> 1A 0.50 .. 12.00 A 2.00 A Load Jam Tripping
Threshold
5A 2.50 .. 60.00 A 10.00 A
4403 TRIP DELAY 0.00 .. 600.00 sec 1.00 sec Load Jam Trip Delay
4404 I Alarm 1A 0.50 .. 12.00 A 1.80 A Load Jam Alarm Thresh-
old
5A 2.50 .. 60.00 A 9.00 A
4405 ALARM DELAY 0.00 .. 600.00 sec 1.00 sec Load Jam Alarm Delay
4406 T Start Blk. 0.00 .. 600.00 sec 10.00 sec Load Jam Blocking after
motor start
No. Information Type of In-
formation
Comments
4822 >BLOCK 66 SP >BLOCK Motor Startup counter
4823 >66 emer.start SP >Emergency start
4824 66 OFF OUT 66 Motor start protection OFF
4825 66 BLOCKED OUT 66 Motor start protection BLOCKED
4826 66 ACTIVE OUT 66 Motor start protection ACTIVE
4827 66 TRIP OUT 66 Motor start protection TRIP
4828 >66 RM th.repl. SP >66 Reset thermal memory
4829 66 RM th.repl. OUT 66 Reset thermal memory
4834 66 OVERL. TRIP OUT 66 Rotor overload TRIP
4835 66 OVERL.ALARM OUT 66 Rotor Overload Alarm
6801 >BLK START-SUP SP >BLOCK Startup Supervision
6805 >Rotor locked SP >Rotor locked
6811 START-SUP OFF OUT Startup supervision OFF
6812 START-SUP BLK OUT Startup supervision is BLOCKED
6813 START-SUP ACT OUT Startup supervision is ACTIVE
6821 START-SUP TRIP OUT Startup supervision TRIP
6822 Rotor locked OUT Rotor locked
6823 START-SUP pu OUT Startup supervision Pickup
10020 >BLOCK Jam Prot SP >BLOCK Load Jam Protection
10021 JAM PROT.BLOCK. OUT Load Jam Protection is BLOCKED
10022 JAM PROT.OFF OUT Load Jam Protection is OFF
10023 JAM PROT.ACTIVE OUT Load Jam Protection is ACTIVE
10024 Load Jam alarm OUT Load Jam Protection alarm
10025 Load Jam pickup OUT Load Jam Protection picked up
10026 Load Jam TRIP OUT Load Jam Protection TRIP
Addr. Parameter C Setting Options Default Setting Comments
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