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140
Monitor display and monitor output signal
CAUTION
⋅ Under V/F control, the output frequency of the inverter is displayed in terms of synchronous speed, and therefore, displayed
value = actual speed + motor slip.
⋅ When the running speed display is selected at the setting of Pr. 37 "0" and Pr. 144 "0", the monitor display is provided on the
assumption that the number of motor poles is 4. (Displayed as 1800r/min when Pr.505 is set.)
⋅ Refer to Pr. 52 when you want to change the PU main monitor (PU main display).
⋅ Since the panel display of the operation panel (FR-DU07) is 4 digits in length, the monitor value of more than "9999" is
displayed "----".
⋅ When an optional FR-A7ND or FR-A7NL card is mounted, frequency is displayed regardless of Pr. 37 and Pr. 144 setting.
CAUTION
Make sure that the settings of the running speed and number of motor poles are correct. Otherwise, the motor
might run at extremely high speed, damaging the machine.
♦ Parameters referred to ♦
Pr. 52 DU/PU main display data selection Refer to page 141