Eaton Cutler-Hammer MP-3000 - Page 12

Page 12 I.L. 17562
PR 0.3 Effective 8/99
Trip setting ranges
Ground fault (GF): Off, 2% to 55% of Ct ratio primary
GF start delay: 2 to 60 cycles
GF run delay: 0 to 60 cycles
Timer accuracy: ± 20 ms
Instantaneous overcurrent: off, 300 to 1600 % FLA
IOC start time delay: 2 to 60 cycles
Timer accuracy: ± 20 ms
Jam Trip: off, 100 to 1200 % FLA
Underload Trip: off, 6 to 90 % FLA
Phase Unbalance Trip: off, I
2
/I
1
= 4 to 40 %
Start Delay Timers: 0 to 120 sec. – underload and phase unbalance
0 to 1200 s - jam
Run Delay Timers: 0 to 240 sec.
Timer accuracy: ± .5% + 100 ms
For phase unbalance, add 100 ms for zero setting
For underload, add 350 ms for zero setting
Alarm setting range
Ground Fault: off, 2% to 55% ct Ratio
Overload I
2
t: off, 60 to 99% I
2
t
Jam: off, 100 to 1200 %FLA
Underload: off, 6 to 90 %FLA
Phase Unbalance: off, 4 to 40 % I
2
/I
1
Run Delay Timers: 0 to 240 s
Start Control Functions
Starts per time: 1 to 10 starts
Time for starts per time: off, 1 to 240 minutes
Time between starts: off, 1 to 240 minutes
Number of Cold Starts: 1 to 5 starts
Motor transition current: 10 to 300 % FLA
Time for transition: 0 to 1200 s
Incomplete sequence timer: off, 1 to 240 s
Long acceleration timer: off, 1 to 1200 s
Antibackspin timer: off, 1 to 240 min
RTD Inputs (Requires URTD module)
Sensor Types: 10 ohm copper
100 ohm nickel
120 ohm nickel
100 ohm platinum
URTD Module Communications
Interface: Plastic optical fiber (preferred)
Electrical (3 wire)
Fiber Optic Cable: Type HFBR-ELS(length) - precut low-loss with connectors
Type HBFR-EUS(length) - bulk low-loss without connectors
Type HBFR-RLS(length) - standard-loss, acceptable for <10m
Clock
Accuracy: Freerunning ± 1 minute/month @ 25°C. Automatically updated
by PowerNet host.