ABB ACS880-11 - Page 260

260 Parameters
29.13 DC voltage ref1
function
Selects a mathematical function between the reference
sources selected by parameters 29.11 DC voltage ref1 source
and 29.12 DC voltage ref2 source. See diagram at 29.11 DC
voltage ref1 source.
Ref1
Ref1 Signal selected by 29.11 DC voltage ref1 source is used as
DC voltage reference 1 as such (no function applied).
0
Add (ref1 + ref2) The sum of the reference sources is used as DC voltage
reference 1.
1
Sub (ref1 - ref2) The subtraction ([29.11 DC voltage ref1 source] - [29.12 DC
voltage ref2 source]) of the reference sources is used as DC
voltage reference 1.
2
Mul (ref1 × ref2) The multiplication of the reference sources is used as DC
voltage reference 1.
3
Min (ref1, ref2) The smaller of the reference sources is used as DC voltage
reference 1.
4
Max (ref1, ref2) The greater of the reference sources is used as DC voltage
reference 1.
5
29.14 DC voltage ref1/2
selection
Configures the selection between DC voltage references 1
and 2. See diagram at 29.11 DC voltage ref1 source.
0 = DC voltage reference 1
1 = DC voltage reference 2
Follow
Ext1/Ext2
selection
DC voltage
reference 1
0. 0
DC voltage
reference 2
1. 1
Follow Ext1/Ext2
selection
DC voltage reference 1 is used when external control location
EXT1 is active. DC voltage reference 2 is used when external
control location EXT2 is active.
See also parameter 19.11 Ext1/Ext2 selection.
2
DI1 Digital input DI1 (10.02 DI delayed status, bit 0). 3
DI2 Digital input DI2 (10.02 DI delayed status, bit 1). 4
DI3 Digital input DI3 (10.02 DI delayed status, bit 2). 5
DI4 Digital input DI4 (10.02 DI delayed status, bit 3). 6
DI5 Digital input DI5 (10.02
DI delayed status, bit 4). 7
DI6 Digital input DI6 (10.02 DI delayed status, bit 5). 8
Other [bit] Source selection (see Terms and abbreviations on page 114). -
29.17 DC voltage filter
time
Defines a filtering time for measured DC voltage. 10 ms
0…10000 ms Filtering time for DC voltage measurement. 1 = 1 ms
29.18 DC voltage ramp
down speed
Defines the maximum decrease rate for the DC voltage
reference.
10 V/s
0…30000 V/s DC voltage reference decrease rate. 1 = 1 V/s
29.19 DC voltage ramp up
speed
Defines the maximum increase rate for the DC voltage
reference.
10 V/s
0…30000 V/s DC voltage reference increase rate. 1 = 1 V/s
29.20 DC voltage
proportional gain
Defines the proportional gain for the DC voltage reference PI
controller.
54.66
0.00 … 30000 V/s Proportional gain. 100 = 1 V/s
No. Name/Value Description Def/FbEq16