Manual/Automatic Mode Or Parallel Operation - ABB SPAU 341 C User Manual

Manual/automatic
mode or parallel
operation
The operation mode of the regulator can be se-
lected in three ways: via external control inputs,
push-buttons, or control commands over the
serial communication link. If the remote/local
control with the external control input BLOCK
is used, either the push-buttons or the serial
communication can be selected to be active.
AUTO' input
Command:
Auto'
MAN' input
Command:
Man'
RSV or RAISE' input
Command:
Parallel on
Parallel off
and push-buttons
Commands:
Raise'
Lower'
Aut/Man push-button
Commands:
Auto'
Man'
Parallel push-button
Commands:
Parallel on
Parallel off
"1"
BLOCK input
States:
Remote
Local
Blocking
Serial port
Commands:
Parallel on(V152=1)
Parallel off(V152=0)
Auto'(I6=1)
Man'(I7=1)
Raise'(I9=1)
Lower'(I10=1)
TCO input
Command for
tap changer:
Tap changer
operating
LOWER' input
Command:
Lower'
RAISE' input
Command:
Raise'
Fig. 1. Manual/automatic mode or parallel operation, control command logic.
Direct control via external control inputs is al-
ways active. Manual tap-changer control can be
performed in the same three ways as the selec-
tion of the operation mode. The figure below
illustrates the different control commands and
the associated logic of the module SPCU 1D50.
&
SGF1/1
SGF2/1
&
SGF1/3
> 1
Remote/Local
&
SGF2/8
SGF1/1
S
R/S
R
> 1
S
R/S
R
I>
> 1
&
> 1
&
> 1
SPCU 1D50, control command logic
1= Automatic mode
0= Manual mode
1= Parallel operation
1= Lower output signal
1= Raise output signal
5