Monitor Display And Monitor Output Signal; Speed Display And Speed Setting (Pr. 37, Pr. 144, Pr. 505) - Mitsubishi Electric FR-F720P-0.75K to 110K Instruction Manual

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Monitor display and monitor output signal

4.12 Monitor display and monitor output signal

Purpose
Display motor speed
Set speed
Change PU monitor display data
Change of the monitor output from
terminal FM and AM
Set the reference of the monitor
output from terminal FM and AM
Adjust terminal FM, AM outputs

4.12.1 Speed display and speed setting (Pr. 37, Pr. 144, Pr. 505)

You can change the PU (FR-DU07/FR-PU04/FR-PU07) monitor display or frequency setting to motor speed or
machine speed.
Parameter
Name
Number
37
Speed display
144
Speed setting switchover
505
Speed setting reference
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.
Pr.37 (set maximum value)
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.)
Pr. 37
Pr. 144
Setting
Setting
0
0
(initial
2 to 10
value)
102 to 110
0
1 to 9998
2 to 10
102 to 110
Motor speed r/min conversion formula............ frequency × 120/number of motor poles (Pr. 144)
*1
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).
1 5 0
Speed display and speed setting
DU/PU main display data selection
Cumulative monitor clear
Terminal FM, AM function selection
Setting of reference of terminal FM and AM
Terminal FM, AM calibration
Initial Value
0
*1
4
*2
60Hz
65535 x Pr. 505 setting (Hz)
<
Pr.1(Hz)
Output Frequency
Monitor
0.01Hz
0.01Hz
1r/min
*1
0.01Hz
1 (Machine speed
)
1 (Machine speed
*1
0.01Hz
Parameter that must be set
Setting Range
0
1 to 9998
*3
0, 2, 4, 6, 8, 10, 102,
104, 106, 108, 110
1 to 120Hz
*2
Set Frequency
Running Speed
Monitor
0.01Hz
0.01Hz
1r/min
*1
0.01Hz
1 (Machine speed
)
1 (Machine speed
*1
0.01Hz
Pr. 37, Pr. 144, Pr. 505
Pr. 52, Pr. 170, Pr. 171,
Pr. 268, Pr. 891
Pr. 54, Pr. 158
Pr. 55, Pr. 56, Pr. 867
Pr. 900, Pr. 901
Description
Frequency display, setting
Set the machine speed at Pr.505.
Set the number of motor poles when
displaying the motor speed.
Set the reference speed for Pr. 37.
Frequency Setting
Monitor
Parameter Setting
1r/min
0.01Hz
*1
1r/min
0.01Hz
*1
1r/min
1r/min
*1
)
0.01Hz
*1
)
1 (Machine speed
*1
1r/min
0.01Hz
*1
Refer to
Page
150
152
152
157
159
*1
)
*1

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