Monitor Display And Monitor Output Signal; Speed Display And Speed Setting (Pr. 37, Pr. 144, Pr. 505) - Mitsubishi Electric FR-D720-0.2K-G Instruction Manual

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 the monitor output from
terminal FM
Set the reference of the monitor
output from terminal FM
Adjust terminal FM outputs

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

The increments of the motor speed and the monitored items displayed on the operation panel and PU (FR-PU07) can
be switched among frequency, machine speed, etc.
Parameter
Name
Number
37 Speed display
144 Speed setting switchover
505
Speed setting reference
The above parameter can be set when Pr. 160 Extended function display selection = "0". (Refer to page 161.)

The maximum value of the setting range differs according to the Pr. 1 Maximum setting, and it can be calculated from the following formula.
Maximum setting value of Pr. 37
Note that the maximum setting value of Pr. 37 is 9998 if the result of the above formula exceeds 9998.

The value left of the slash is for the 2.2K drive unit or lower. The one right of the slash is for the 3.7K drive unit.
 To display a machine speed, set Pr. 37 to the machine speed at the frequency set in Pr. 505, and set Pr. 144 to the number of
motor poles (4, 6).
For example, when Pr. 505 = "100Hz" and Pr. 37 = "1000", "1000" is displayed on the set frequency monitor when the
running frequency is 100Hz. When running frequency is 50Hz, "500" is displayed.
 When the number of motor poles +100 is set in Pr. 144, values are displayed in motor speed increments. (When Pr. 37 = "0")
 To change the display increments to frequency, set the number of motor poles in Pr. 144. (When Pr. 37 = "0")
 A combination of the Pr. 37 and Pr. 144 settings determines the monitored item and the setting increment as shown in the
table below. (Initial settings are outlined with bold borders)
Pr. 37
Pr. 144
Setting
Setting
0 2 to 10
102 to 110
(initial value)
2 to 10
0.01 to 9998
102 to 110
* 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.
Pr. 505 is always set as frequency (Hz).
132
Speed display and speed setting
Monitor display/PU main display
data selection
Cumulative monitor clear
Terminal FM function selection
Terminal FM standard setting
Terminal FM calibration
Initial
Setting Range
Value
0
0.01 to 9998
104/106 2, 4, 6, 8, 10, 102,

104, 106, 108, 110
100Hz/
150Hz 
16777.215  Pr. 505 setting
<
Setting value of Pr. 1 (Hz)
Output Frequency
Monitor
0.01 Hz
1 r/min
*
0.001 (Machine speed ) 0.001 (Machine speed
*
0.01 Hz
Parameter that should be Set
Pr. 37, Pr. 144, Pr. 505
Pr. 52, Pr. 54, Pr. 170, Pr. 171,
Pr. 268, Pr. 563, Pr. 564, Pr. 891
0 Speed display, setting
Machine speed at Pr. 505.
Set the number of motor poles when displaying the
frequency.
1 to 200Hz Set the reference speed for Pr. 37.
Set Frequency Running Speed
Monitor
0.01 Hz
1 r/min
*
) 0.001 (Machine speed
*
0.01 Hz
Pr. 54
Pr. 55, Pr. 56
Pr. 900
Description
Parameter Setting
Monitor
0.01 Hz 0.01 Hz
*
1 r/min 1 r/min
*
) 0.01 Hz
*
0.01 Hz 0.01 Hz
Refer to
Page
132
134
134
139
140
*