Mitsubishi Electric 800 Series Instruction Manual page 364

NOTE
• When outputting such an item as the output current, which cannot reach a 100% value easily by operation, set Pr.54 to "21"
(reference voltage output) and calibrate. 1440 pulses/s are output from the terminal FM.
• When Pr.310 Analog meter voltage output selection = "21", the terminal FM calibration cannot be performed. For the
details of Pr.310, refer to the Instruction Manual of FR-A8AY.
• The wiring length of the terminal FM should be 200 m at maximum.
• The initial value of the calibration parameter Pr.900 is set to 1 mA full-scale and 1440 pulses/s terminal FM pulse train output
at 60 Hz. The maximum pulse train output of terminal FM is 2400 pulses/s.
• When connecting a frequency meter between terminals FM-SD and monitoring the output frequency, it is necessary to
change Pr.55 to the maximum frequency, since the FM terminal output will be saturated at the initial value when the
maximum frequency reaches 100 Hz or greater.
• Calibration with the calibration parameter Pr.900 cannot be done when Pr.291 Pulse train I/O selection = "10, 11, 20, 21,
100" (high-speed pulse train output).
Calibration procedure for terminal FM when using the operation panel
Screen at power-ON
1.
The monitor display appears.
Changing the operation mode
2.
Select the PU operation mode. [PU] indicator is lit.
Calibration is also possible in the External operation mode.
Selecting the parameter number
3.
Read Pr.900. The monitored value of the item (initially the output frequency) selected by Pr.54 FM terminal function
selection will appear.
Pulse output via terminal FM
If stopped, press
4.
required.
When a monitor that does not require inverter operation is set in Pr.54, calibration is also possible during a stop status.
Scale adjustment
5.
Turn to move the meter needle to a desired position.
Setting completed
6.
Press [SET] to enter the setting.
NOTE
• Calibration can also be made for the External operation. Set the frequency in the External operation mode, and make
calibration in the above procedure.
• Calibration can be performed during operation.
• For the operation from the parameter unit, refer to the Instruction Manual of the parameter unit.
Operation
or to start the inverter operation. (To monitor the output frequency, motor connection is not
(M) Monitor display and monitor output signal
363
PARAMETERS
5
GROUP
M