Operating instructions

EXAMPLE 3:
Variable value= REFERENCE, range= Min ref - Max ref
Range needed for output= Min ref (0%) - Max ref (100%), 0-10
mA
Output signal 0 or 4 mA is needed at Min ref - set
par. 6-51 Terminal 42 Output Min Scale to 0%
Output signal 10 mA is needed at Max ref (100% of range) - set
par. 6-52 Terminal 42 Output Max Scale to 200%
(20 mA / 10 mA x 100%=200%).
6-53 Terminal 42 Output Bus Control
Range: Function:
0.00 % * [0.00 - 100.00 %] Holds the level of Output 42 if
controlled by bus.
6-54 Terminal 42 Output Timeout Preset
Range: Function:
0.00 % * [0.00 -
100.00 %]
Holds the preset level of Output 42.
In case of a bus timeout and a timeout
function is selected in par. 6-50 Terminal
42 Output the output will preset to this
level.
3.8.7 6-6* Analog Output 2 MCB 101
Analog outputs are current outputs: 0/4 - 20 mA. Common
terminal (terminal X30/8) is the same terminal and electrical
potential for analog common connection. Resolution on
analog output is 12 bit.
6-60 Terminal X30/8 Output
Same options and functions as par. 6-50 Terminal 42 Output.
Option: Function:
[0] * No operation
6-61 Terminal X30/8 Min. Scale
Range: Function:
0.00
%
*
[0.00 -
200.00 %]
Scales the minimum output of the selected
analog signal on terminal X30/8. Scale the
minimum value as a percentage of the
maximum signal value, i.e. 0 mA (or 0 Hz) is
desired at 25% of the maximum output value
and 25% is programmed. The value can never
be higher than the corresponding setting in
par. 6-62 Terminal X30/8 Max. Scale if value is
below 100%.
This parameter is active when option module
MCB 101 is mounted in the frequency convert-
er.
6-62 Terminal X30/8 Max. Scale
Range: Function:
100.00
%
*
[0.00
-
200.00
%]
Scales the maximum output of the selected analog
signal on terminal X30/8. Scale the value to the
desired maximum value of the current signal
output. Scale the output to give a lower current
than 20 mA at full scale or 20 mA at an output
below 100% of the maximum signal value. If 20 mA
is the desired output current at a value between 0 -
100% of the ful-scale output, program the percent-
age value in the parameter, i.e. 50% = 20 mA. If a
current between 4 and 20 mA is desired at
maximum output (100%), calculate the percentage
value as follows:
20 mA / desired maximum current × 100 %
i . e . 10 mA :
20 mA
10 mA
× 100 % = 200 %
6-63 Terminal X30/8 Output Bus Control
Range: Function:
0.00 % * [0.00 - 100.00 %] Contains the value to apply to the
output terminal, when it is configured
as [Bus Controlled].
6-64 Terminal X30/8 Output Timeout Preset
Range: Function:
0.00 % * [0.00 - 100.00
%]
Contains the value to apply to the
output terminal, when it is configured
as [Bus Controlled Timeout] and time-
out is detected.
Parameter Description
VLT
®
HVAC Drive Programming Guide
74 MG.11.CA.02 - VLT
®
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