Mitsubishi Electric 800 Series Instruction Manual page 289

5.8.4 Adjustment of terminal CA and terminal AM
By using the operation panel or the parameter unit, terminals CA and AM can be adjusted (calibrated) to the full scale.
Pr.
900 CA terminal calibration
M310
901 AM terminal calibration
M320
930 Current output bypass signal
M330
930 Current output bypass current
M331
931 Current output gain signal
M332
931 Current output gain current
M333
867 AM output filter
M321
869 Current output filter
M334
 Terminal CA calibration (Pr.900, Pr.930 to Pr.931)
• Terminal CA is initially set to provide a 20 mADC output in the full-scale state of the corresponding monitor item. Pr.900
allows the output current ratio (gains) to be adjusted according to the meter scale. Note that the maximum output current
is 20 mADC.
• Set a value at the minimum current output in the calibration parameters Pr.930. Calibration parameter Pr.931 are used to
set a value at the maximum current output.
• Set the output signal values (output monitor set with Pr.54) at zero and at the maximum current output from the terminal
CA (using calibration parameters Pr.930 and Pr.931. The full scale for each monitor is 100% at this time.
• Set the output current values (output monitor set with Pr.54) at zero and at the maximum current output from the terminal
CA (using calibration parameters Pr.930 and Pr.931. The output current calibrated by calibration parameter Pr.900 is
100% at this time.
0 to 20 mADC
CA
5
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5. PARAMETERS
5.8 (M) Monitor display and monitor output signal
Name Initial value
―
―
0%
0%
100%
100%
0.01 s
0.01 s
(ammeter)
Analog output current
(+) (-)
Pr.900
100%
Setting range
―
―
0 to 100%
0 to 100%
0 to 100%
0 to 100%
0 to 5 s
0 to 5 s
Output signal value
for minimum analog output
(Pr.931)
(CA)
20mA
(initial setting)
0
Output signal value
for zero analog current output
(Pr.930)
Analog current output value for zero output signal
(Pr.930)
Description
Calibrates the scale of the meter
connected to terminal CA.
Calibrates the scale of the analog meter
connected to terminal AM.
Set the signal value at the minimum
analog current output.
Set the current value at the minimum
analog current output.
Sets the signal value when the analog
current output is at maximum.
Set the current value at the maximum
analog current output.
Set the terminal AM output filter.
Set the terminal CA output filter.
Analog current
output value for
maximum
output signal
(Pr.931)
Output signal value