ABB UNITROL 1020 - Page 97

 Chapter 5 - Commissioning
UNITROL 1020 User Manual 3BHS335648 E82 89
Note:
Digital IO can be configured at the same time as input and output
5.3.1.11 Setup \ Analog Inputs / Outputs, Configuration
Software configuration of the analog inputs
 Assign terminal to desired signal.
 Define signal level of the input signal [Uin 0% to Uin 100%].
 If the input is used as a digital input, the desired signal name is to be assigned in the
menu.
Software configuration of the analog outputs
 Assign terminal to desired signal.
 Define signal level of the output signal [Uout 0% to Uout 100%].
 Define signal level of the field current [Ie 0% to Ie 100%].
5.3.1.12 Setup \ Digital I/Os, Selection of Operating Mode
The operating mode is selected via the digital inputs. For this purpose, a maximum of
10 inputs have to be occupied by the following signals:
Mode
Digital inputs to be assigned
Stand
by
SYN
Gen CB
Closed
Status
Parallel
with Grid
Status
Manual
Enable
Open Loop
Enable
VDC
Enable
PF
Enable
Var
Enable
Standby
1
X
X
X
X
X
X
X
X
Sync
0
1
X
X
X
X
X
X
X
Manual
0
0
X
X
1
X
X
X
X
Open Loop
0
0
X
X
0
1
X
X
X
VDC
0
0
1
0
0
0
1
X
X
PF
0
0
1
1
0
0
0
1
X
Var
0
0
1
1
0
0
0
0
1
Auto
0
0
0
X
0
0
X
X
X
with *)
0
0
1
X
0
0
0
0
0
*) with droop or compensation
0 = logical 0 or open 1 = logical 1, X = not relevant
Note: If an input is to be continuously logical 1, then it can also be inverted by software
means. The input then naturally counts as being occupied.
The inputs DI13 to DI18 can be used as virtual digital inputs even if they are not defined in
Analog Inputs as Digital Inputs.
5.3.1.13 Setup \ Synchronization
The machine frequency must always be higher than the network frequency and cannot be
synchronized by a positive slip.