Licht
http://www.licht-labs.com
Rev. A2 (30–05–12)
MFC-202/P Technical Manual
5
3 Operation
3.1 Front panel indication
Under normal operation, the MFC-202/P indicates its channel’s position, operation mode
(Master, Follower, Individual, Disabled) and, if applicable, the raise (
↑
) or lower (
↓
)
command indications.
presents a front panel indication example.
C
P
MULTI FUNCTION CONTROLLER
MFC-202/P
Licht
www.licht-labs.com
Parallelism Controller
Mod. MFC-202/P
Relay 1:
Relay 6: Individual
Relay 2:
¯
Command
Relay 7: Error 1
Relay 3: Manual
Relay 8: Error 2
Relay 4: Master
Relay 9: Error 3
Relay 5: Follower
Relay 10: Unused
Command
Mode: Individual
Pos 01 Addr 00
43
42
45
44
47
46
49
48
51
50
53
52
55
54
56
57
58
59
60
61
62
63
64
65
66
67
68
69
Figure 3.1
Front Panel
In alarm situations, the display alternates between an error message and the channel’s
indication, regardless of the device’s configuration.
3.2 Manual commands
Transformers configured as Master or Individual can be directly commanded by the MFC-
202/P with a manual command. Whenever the transformer is configured as Follower or
Disabled, the command is ignored. Manual commands are only accepted if there’s no
synchronism error between all tap changers.
To perform a manual command, press
P
, choose the “Manual Command” option, press
P
again to confirm and then issue a raise or lower command with the
↑
or
↓
key.
Master
Transformer
↑
Position 7
↑
Follower
Transformer
Position 7
Individual
Transformer
Position 4
Figure 3.2
Raise Command Example (Before)