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Operation Manual 37107F
MFR 3 - Multi Function Relay
© Woodward
Page 47/165
Brief Description of LED and Push-Buttons
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LEDs
No. Description
Function
1
V1
Voltage
L1
2
V2
Voltage
L2
3
V3
Voltage
L3
5
-7%..fn..+7%
Synchroscope
6
Automatic
Operating mode AUTOMATIC selected
7
Manual
Operating mode MANUAL selected
8
Monitoring
Monitoring is activated
9
Alarm
Alarm is active
10
GCB is closed
Reply: GCB is closed
11
MCB is closed
Reply: MCB is closed
Push-Buttons
No. Description
Function
12
Message
↓
Route
messages
12
Select
Confirm
selection
13
Display
V
↓
Route voltage display
13
Digit
↑
Increase
digit
14
Set point
Activate set point value
14
Cursor
→
Move cursor one position right
15
Set
point
↑
Increase MANUAL set point value
16
Set
point
↓
Decrease MANUAL set point value
17
GCB ON
Close GCB manually
18
GCB OFF
Open GCB manually
19
MCB ON
Close MCB manually
20
MCB OFF
Open MCB manually
21
MAN
Select operating mode MAN
23
LED TEST
Execute LED test
24
ACK
Acknowledge alarm messages
25
AUTO
Select
operating mode AUTOMATIC
26
Set
point
↑
Increase AUTO setpoint value
27
Set
point
↓
Decrease AUTO setpoint value
Miscellaneous
No. Description
Function
28
LC display
LC display
29
DPC plug
Configuration plug
30
Potentiometer
Adjust LCD contrast