Mitsubishi Electric Freqrol-A100 Instruction Manual page 161

(2) Calibration of detector output
1) Apply a current for 0% detector setting output (e.g. 4mA) to across terminals 4-5.
2) Make calibration using Pr. 904 "frequency setting current bias".
3) Apply a current for 100% detector setting output (e.g. 20mA) to across terminals 4-5.
4) Make calibration using Pr. 905 "frequency setting current gain".
*The frequencies set in Pr. 904 and Pr. 905 should be the same as those set in Pr. 902 and
Pr. 903, respectively.
(Practically, the frequencies set in Pr. 904 and Pr. 905 are independent of PI control action.)
The results of the above calibrations are shown below:
0
4
20 (mA) ion
W )
4.8.8 Instructions
(1) The input of the multi-speed (terminal RH, RM, RL) or jog operation (terminal JOG) signal with
terminals RT and SD connected causes PI control to be stopped and the multi-speed or jog
operation to be started.
(2) Note that when 20 or 21 is set in Pr. 128, the value input to across inverter terminals 1-5 is added
as a set value to the set value across terminals 2-5.
(3) When 5 (programmed operation mode) is set in Pr. 79, PI control operation cannot be performed
and programmed operation is performed.
(4) When the value set in Pr. 128 "PI control action selection" is other than 0 and 1, the functions of
the terminals corresponding to "5, 7,
8"
set in Pr. 40 change to those of the PI control function
terminals.
4.8.9 Specifications
(3) Output signals (open collector output)
Upper limit
* Permissible load 24VDC 0.1A Lower limit
Rotation direction (forward rotation output,
reverse rotation output)
(1) PI setting ranges Proportional band (P) 0.1 to 1000%
Integral time (I)
0.1 to 3600 seconds
(2) lnput signals
(a) Set value, process value and deviation
(4) Setting functions (parameter unit used)
Upper limit value
Lower limit value
PI proportional band
Integral time
Forward-reverse action selection
PI control set value setting for PU operation
prepare the detector power supply according to
the power supply specifications of the detector.
This power cannot be supplied from the inverter.
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145
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Input Signals
0 to 5V. 0 to 1OV
Dig~tal s~gnal
4 to 20mA
0 to 2 5 V o r O t o k l O V
* When the error has been calculated outs~de the inverter, ~nput that value to mverter terrn~nal 1 (+10V or k5V).
Set 10 or 11 in Pr. 128.
(b) Selection signal (contact input)
PI control action selection
Feedback input signal (4 to 20mA) selection
Input Terminals, Input Method
Inverter terminal 2
Parameter unit
Inverter terminal
4
Inverter terminal I *
Input Specifications
When process value is 4 to 20mA
When dev~ation is input directly
Set value
Process value
Deviation