Menu 7
Commander SK Advanced User Guide
107
Issue Number: 9 www.controltechniques.com
Users wanting to output load should be aware of the maximum values of the parameters they are routing to the output.
The maximum value of Pr
4.02
(active current) is the maximum level of current that the drive can operate at which is drive rating x 2. Therefore, at
rated load the analog output will be 1/2 x 10 = 5V.
Users wishing to see 10V output at 100% load will need to set Pr
7.19
to Pr
4.20
and Pr
4.24
= 100.
This parameter can be used to scale the analog output if so desired. However in most cases it is not necessary as the output is automatically scaled
such that when the source parameter is at its maximum, the analog output will be at its maximum.
If analog input 1 is programmed in any of the modes 2 to 5 (see Pr
on page 104) then this bit is set to On(1) if the current input falls below 3mA.
This bit can be designated to a digital output to indicate that the current input is less than 3mA.
An offset can be added to each analog input with a range from -100% to 100%. If the sum of the input and the offset exceeds ±100% the results is
limited to ±100%.
This offers a simple control of Pr
7.19
to change the analog output. Its function is used to set the value of Pr
7.19
between a frequency output, load
output, current output, or power output, or to leave the value unchanged. A user wishing to change the analog output to something other than these
must first program this parameter to USEr (or 4).
7.20
Analog output scaling
Coding
Bit
SP
FI
DE Txt VM DP ND RA NC NV
PT
US RW BU PS
3
1
1
1
Range
0.000 to 4.000
Default
1.000
Update rate
21 ms
7.21 to 7.27
Unused parameters
7.28
Current loop loss indicator
Coding
Bit
SP
FI
DE Txt VM DP ND RA NC NV
PT
US RW BU PS
1
1
1
1
Range
OFF(0) or On(1)
Update rate
5 ms
7.29
Unused parameter
7.30
Analog input 1 offset
7.31
Analog input 2 offset
Coding
Bit
SP
FI
DE Txt VM DP ND RA NC NV
PT
US RW BU PS
1
1
1
Range
±100.0%
Default
0.0
Update rate
5 ms
7.32
Unused parameter
7.33
Analog output control (Terminal B1) {36}
Coding
Bit
SP
FI
DE Txt VM DP ND RA NC NV
PT
US RW BU PS
1
1
1
Range
Fr(0), Ld(1), A(2), Por(3), USEr(4)
Default
Fr(0)
Update rate
Actioned on exit of edit mode
Pr 7.33
Display
Function
Pr 7.19
0
Fr
Frequency output
Pr
2.01
1
Ld
Load output
Pr
4.02
2
A
Current output
Pr
4.01
3
Por
Power output
Pr
5.03
4
USEr
Allows Pr
7.19
to be set up by user.
NOTE
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