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5. PARAMETERS
5.8 (M) Monitor display and monitor output signal
5.8.1 Speed display and rotations per minute setting
The monitor display unit and the frequency setting on the operation panel can be switched to motor speed and machine speed.
*1 The maximum value of the setting range differs according to the Pr.1 Maximum frequency, Pr.505 Speed setting reference, and it can be
calculated from the following formula.
The maximum value of Pr.37 < 65535 Pr.505 / Pr.1 setting value (Hz).
The maximum setting value of Pr.37 is 9998 if the result of the above formula exceeds 9998.
Display in speed (Pr.37, Pr.144)
• Set the number of motor poles (2, 4, 6, 8, 10, 12) for Pr.144, or the number of motor poles + 100 (102, 104, 106, 108, 110,
112) to display the motor speed.
•The Pr.144 setting will change automatically when setting the motor poles with Pr.81 Number of motor poles. Pr.81 will
not automatically change when Pr.144 is changed.
Example 1) Changing the initial value of Pr.81 to "2" will change Pr.144 from "4" to "2".
Example 2) When setting Pr.81 = "2" while Pr.144 = "104", Pr.144 will change from "104" to "102".
Display in motor speed (Pr.37, Pr.505)
• To display in the machine speed, set Pr.37 to the machine speed at the frequency set in Pr.505.
• For example, when Pr.505 is set to 60 Hz and Pr.37 is set to "1000", the operation panel indicates "1000" as the monitor
value of machine speed while the output frequency is 60 Hz. "500" is displayed while the output frequency is 30 Hz.
Pr. Name Initial value Setting range Description
37
M000
Speed display 0 0 Frequency display and setting
1 to 9998
*1
Set the machine speed for Pr.505.
505
M001
Speed setting reference 60 Hz 1 to 590 Hz Set the reference speed for Pr.37.
144
M002
Speed setting
switchover
4 0, 2, 4, 6, 8, 10, 12,
102, 104, 106, 108,
110, 112
Set the number of motor poles when displaying the
motor speed.
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