5–68 369 MOTOR MANAGEMENT RELAY – QUICKSTART GUIDE
SPECIFICATIONS CHAPTER 5: PRODUCT DESCRIPTION
Dropout Level:..................................................96 to 98% of pickup
Time Delay:........................................................0.5 to 30.0 s in steps of 0.5
Start Delay:........................................................0 to 50000 s in steps of 1
Timing Accuracy:............................................±300 ms or ±0.5% of total trip time
87 DIFFERENTIAL SWITCH
Time Delay:........................................................<200 ms
14 SPEED SWITCH
Time Delay:........................................................0.5 to 100.0 s in steps of 0.5
Timing Accuracy:............................................±200 ms or ±0.5% of total trip time
GENERAL SWITCH
Time Delay:........................................................0.1 to 5000.0 s in steps of 0.1
Start Delay:........................................................0 to 5000 s in steps of 1
Timing Accuracy:............................................±200 ms or ±0.5% of total trip time
DIGITAL COUNTER
Pickup: .................................................................on count equaling level
Time Delay:........................................................<200 ms
BACKSPIN DETECTION
Dynamic BSD:...................................................20 mV to 480 V RMS
Pickup Level: .....................................................3 to 120 Hz in steps of 1
Dropout Level:..................................................2 to 30 Hz in steps of 1
Level Accuracy: ...............................................±0.02 Hz
Timing Accuracy:............................................±500 ms or ±0.5% of total trip time
5.2.6 Monitoring Elements
STARTER FAILURE
Pickup level:.......................................................motor run condition when tripped
Dropout level:...................................................motor stopped condition
Time delay:........................................................10 to 1000 ms in steps of 10
Timing accuracy:............................................±100 ms
CURRENT DEMAND ALARM
Demand period: ..............................................5 to 90 min. in steps of 1
Pickup level:.......................................................0 to 65000 A in steps of 1
Pickup accuracy:.............................................as per phase current inputs
Dropout level:...................................................96 to 98% of pickup
Time delay:........................................................<2 min.
kW DEMAND ALARM
Demand period: ..............................................5 to 90 min. in steps of 1
Pickup level:.......................................................1 to 50000 kW in steps of 1
Pickup accuracy:.............................................±2%
Dropout level:...................................................96 to 98% of pickup
Time delay:........................................................<2 min.
kvar DEMAND ALARM
Demand period: ..............................................5 to 90 min. in steps of 1
Pickup level:.......................................................1 to 50000 kvar in steps of 1
Pickup accuracy:.............................................±2%
Dropout level:...................................................96 to 98% of pickup
Time delay:........................................................<2 min.
kVA DEMAND ALARM
Demand period: ..............................................5 to 90 min in steps of 1
Pickup level:.......................................................1 to 50000 kVA in steps of 1