PGR-6150 Motor Protection System
Rev. 1
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Pub. PGR-6150-M. September 29, 2010 • www.littelfuse.com • © 2010 Littelfuse • POWR-GARD
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Phase loss
Function enabled: yes/no
%Unbalance (d): 10 to 100% (step 1)
Operating time: 0.02 to 20s (step 0.001)
Reference: Average current of phases IA, IB, IC
Activation level: (100 – d)%
Reset level: (100 – d + 5)%
Sequence
Function enabled: Yes/no
Operating time: 0.02 to 2 s (step 0.001)
PTC
Function enabled: yes/no
Overtemperature, activation level: > 3,600
Ω
Overtemperature, reset level: < 1,800
Ω
Short circuit, activation level: < 20
Ω
Short circuit, reset level: > 30
Ω
Open circuit, activation level: > 4,000
Ω
Open circuit, reset level: < 3,900
Ω
Operating time: 500 ms
Jam
Function enabled: yes/no
Pickup: 1 to 3.5 times I
B
(Step 0.01)
Operating time: 0.02 to 50 s (Step 0.001)
Activation level: 100% pickup
Reset level: 95% pickup
Locked rotor
Function enabled: yes/no
Pickup: 3.5 to 6 times I
B
(Step 0.01)
Motor starting up time: 0.02 to 200 s (Step 0.001)
Motor operation time: 0.02 to 30 s (Step 0.001)
Activation level: 100% pickup
Reset level: 95% pickup
I
0
>> GF Calc Def
Function enabled: yes/no
Pickup: 0.1 to 1 times I
B
(Step 0.01)
Operating time: 0.02 to 5 s (Step 0.001)
Activation level: 100% pickup
Reset level: 95% pickup