Mitsubishi Electric FR-A7AD Instruction Manual page 21

HIGH-SPEED ANALOG OUTPUT
(2) Calibration at full-scale voltage output
START
Connect a DC voltmeter across terminal 5
and a terminal between DA2 and DA5.
Set "21 (reference voltage output)" in Pr.525,
Pr.527, Pr.529, or Pr.531 according to the
(Refer to page 17.)
terminal to be calibrated.
Use Pr. 900 to perform adjustment, then set.
END
CAUTION
• If calibration is made without "21 (reference voltage output)" set in Pr.525, Pr.527, Pr.529, or Pr.531, the
terminal FM or CA* of the inverter is calibrated. To calibrate the high-speed analog output, always set "21".
(* Terminals provided differ according to the inverter.)
• If "21" is set in several parameters of Pr.525, Pr.527, Pr.529, and Pr.531, the terminal that has the highest
priority is calibrated with Pr.900. (Terminal priority: DA2
• Calibration priority with Pr.900 is as follow when using FR-A7AY or FR-A7AZ in combination with FR-A7AD
and "21" is set in Pr.310 Analog meter voltage output selection (FR-A7AY), Pr.838 DA1 terminal function selection (FR-
A7AZ), Pr.525, Pr.527, Pr.529, and Pr.531.
> >
FR-A7AY FR-A7AZ FR-A7AD
• During 10V calibration, scale settings of Pr.526, Pr.528, Pr.530, and Pr.532 are invalid (always set to 100%).
• If FR-A7AD is remounted on another inverter, calibrate again.
16
At this time, check that the polarity is correct
The maximum output voltage (10VDC) is actually output to swing the
voltmeter needle.
After making adjustment with
press
Specify the output signal type by setting Pr.525, Pr.527, Pr.529, or Pr.531.
to deflect the voltmeter to full-scale
to set.
> > >
DA3 DA4 DA5)