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Monitor display and monitor output signal
4.12 Monitor display and monitor output signal
4.12.1 Speed display and speed setting (Pr. 37, Pr. 144, Pr. 505)
The above parameters can be set when Pr. 160 User group read selection = "0". (Refer to page 201)
*1 Performing IPM parameter initialization sets back the settings to the initial settings. (Refer to page 80)
*2 Performing IPM parameter initialization changes the settings. (Refer to page 80)
*3 The maximum value of the setting range differs according to the Pr.1 Maximum frequency and it can be calculated from the following formula.
Note that Pr.37 (set maximum value) is 9998 if the result of the above formula exceeds 9998.
⋅ To display the machine speed, set in Pr. 37 the machine speed for operation with frequency set in Pr. 505. For
example, when Pr. 505 = "60Hz" and Pr. 37 = "1000", "1000" is displayed on the running speed monitor when the
running frequency is 60Hz. When running frequency is 30Hz, "500" is displayed.
⋅ When displaying the motor speed, set the number of motor poles (2, 4, 6, 8, 10) or number of motor poles + 100
(102, 104, 106, 108, 110) to Pr. 144.
⋅ When both Pr. 37 and Pr. 144 have been set, their priorities are as given below.
Pr. 144, 102 to 110 > Pr. 37, 1 to 9998 > Pr. 144, 2 to 10
⋅ A combination of the Pr. 37 and Pr. 144 settings determines the setting increment of monitored items as shown in the
table below. (The increments within the bold frame are the initial increments.)
Purpose Parameter that must be set
Refer to
Page
Display motor speed
Set speed
Speed display and speed setting Pr. 37, Pr. 144, Pr. 505 150
Change PU monitor display data
DU/PU main display data selection
Cumulative monitor clear
Pr. 52, Pr. 170, Pr. 171,
Pr. 268, Pr. 891
152
Change of the monitor output from
terminal FM and AM
Terminal FM, AM function selection Pr. 54, Pr. 158 152
Set the reference of the monitor
output from terminal FM and AM
Setting of reference of terminal FM and AM Pr. 55, Pr. 56, Pr. 867 157
Adjust terminal FM, AM outputs Terminal FM, AM calibration Pr. 900, Pr. 901 159
You can change the PU (FR-DU07/FR-PU04/FR-PU07) monitor display or frequency setting to motor speed or
machine speed.
Parameter
Number
Name Initial Value Setting Range Description
37 Speed display 0 *1
0 Frequency display, setting
1 to 9998
*3 Set the machine speed at Pr.505.
144 Speed setting switchover 4
*2
0, 2, 4, 6, 8, 10, 102,
104, 106, 108, 110
Set the number of motor poles when
displaying the motor speed.
505 Speed setting reference 60Hz
*2 1 to 120Hz Set the reference speed for Pr. 37.
Pr.37 (set maximum value)
<
65535 x Pr. 505 setting (Hz)
Pr.1(Hz)
Pr. 37
Setting
Pr. 144
Setting
Output Frequency
Monitor
Set Frequency
Monitor
Running Speed
Monitor
Frequency Setting
Parameter Setting
0
(initial
value)
0 0.01Hz 0.01Hz 1r/min
*1 0.01Hz
2 to 10 0.01Hz 0.01Hz 1r/min
*1 0.01Hz
102 to 110 1r/min *1 1r/min *1 1r/min *1 1r/min *1
1 to 9998
0 0.01Hz 0.01Hz 1 (Machine speed
*1)0.01Hz
2 to 10 1 (Machine speed
*1) 1 (Machine speed *1) 1 (Machine speed *1) 1 (Machine speed *1)
102 to 110 0.01Hz 0.01Hz 1r/min
*1 0.01Hz
*1 Motor speed r/min conversion formula............ frequency × 120/number of motor poles (Pr. 144)
Machine speed conversion formula...................Pr. 37 × frequency/Pr. 505 setting (Hz)
For Pr. 144 in the above formula, the value is "Pr. 144-100" when "102 to 110" is set in Pr. 144 and the value is "4" when Pr. 37 = 0 and Pr. 144 = 0.
Pr. 505 is always set as frequency (Hz).