Manual 37353A
MFR 13 Packages - Protection Relay
© Woodward
Page 75/91
Number Content
(words)
Unit
Remark
3964 Modbus CAN
bus
Profibus
42 43
22
(44, 45)
MUX=8
,
1
21
Internal alarms 2
Bit 15 = 1 \
Bit 14 = 0 /
Overfrequency level 1
Bit 13 = 1 \
Bit 12 = 0 /
Underfrequency level 1
Bit 11 = 1 \
Bit 10 = 0 /
Overvoltage level 1
Bit 9
= 1 \
Bit 8
= 0 /
Undervoltage level 1
Bit 7
= 1 \
Bit 6
= 0 /
Overcurrent level 3
Bit 5
= 1 \
Bit 4
= 0 /
df/dt alarm
Note (example bit 15/14):
Bit 3
= 1 \
Bit 2
= 0 /
Asymmetry (voltage)
0/1 = alarm not triggered
1/0 = alarm triggered
Bit 1
= 1 \
Bit 0
= 0 /
Vector/phase jump
44 45
23
(46, 47)
MUX=8
,
2
22
Internal alarms 3
Bit 15 = 1 \
Bit 14 = 0 /
Power factor level 1
Bit 13 = 1 \
Bit 12 = 0 /
Power factor level 2
Bit 11 = 1 \
Bit 10 = 0 /
Inductive reactive power
Bit 9
= 1 \
Bit 8
= 0 /
Capacitive reactive power
Bit 7
= 1 \
Bit 6
= 0 /
Positive real power surge
Bit 5
= 1 \
Bit 4
= 0 /
Negative real power surge
Note (example bit 15/14):
Bit 3
= 1 \
Bit 2
= 0 /
Overcurrent level 2
0/1 = alarm not triggered
1/0 = alarm triggered
Bit 1
= 1 \
Bit 0
= 0 /
Interface fault
46 47
24
(48, 49)
MUX=8
,
3
23
Internal alarms 4
Bit 15 = 1 \
Bit 14 = 0 /
Busbar : Overfrequency
Bit 13 = 1 \
Bit 12 = 0 /
Busbar : Underfrequency
Bit 11 = 1 \
Bit 10 = 0 /
Busbar : Overvoltage
Bit 9
= 1 \
Bit 8
= 0 /
Busbar : Undervoltage
Bit 7
= 1 \
Bit 6
= 0 /
Internal
Bit 5
= 1 \
Bit 4
= 0 /
Internal
Note (example bit 15/14):
Bit 3
= 1 \
Bit 2
= 0 /
Internal
0/1 = alarm not triggered
1/0 = alarm triggered
Bit 1
= 1 \
Bit 0
= 0 /
Internal