Mitsubishi Electric FR-E700EX, Instruction Manual

Page: 155 / 323

153
Monitor display and monitor output signal
4
P
ARAME
TERS
4.13 Monitor display and monitor output signal
4.13.1 Speed display and speed setting (Pr.37, Pr.144)
The above parameters can be set when Pr.160 Extended function display selection = "0". (Refer to page 182)

The maximum value of the setting range differs according to the Pr.1 Maximum setting and it can be calculated from the following formula.
Note that the maximum setting value of Pr.37 is 9998 if the result of the above formula exceeds 9998.
 To display a machine speed, set the machine speed at 3000r/min in Pr.37 , and set the number of motor poles (2, 4, 6, 8, 10)
in Pr.144 .
For example, when
Pr.37
= "1000", "1000" is displayed on the speed and set speed monitor when the running speed is
3000r/min. When running speed is 1500r/min, "500" is displayed.
 When the number of motor poles +100 (102, 104, 106, 108, 110) 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 (10) 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)
Purpose Parameter to set
Refer to
page
To display motor speed
To set speed
Speed display and speed setting Pr.37, Pr.144
153
To change PU monitor display data
DU/PU main display data selection
Cumulative monitor clear Pr.52, Pr.54, Pr.170, Pr.171,
Pr.268, Pr.563, Pr.564
155
To change the monitor output from
terminal FM
Terminal FM function selection
Pr.54 155
To set the reference of the monitor
output from terminal FM
Terminal FM standard setting Pr.55, Pr.56
161
To adjust terminal FM outputs Terminal FM calibration
Pr.900
162
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
number
Name
Initial
value
Setting range Description
37 Speed display
0

0 Rotation speed display, setting
0.01 to 9998  Machine speed at 3000r/min.
144
Speed setting
switchover
0.75K or lower 110
2, 4, 6, 8, 10, 102, 104,
106, 108, 110
Set the number of motor poles when
displaying the frequency.
1.5K, 2.2K 104
3.7K 106
Maximum setting value of
Pr.37
<
16777.215

3000r/min
Setting value of
Pr.1
(r/min)
Pr.37 setting
value
Pr.144 setting value
Output frequency
monitor
Set frequency
monitor
Frequency setting Parameter setting
0 (initial value)
2 to 10 0.01Hz 0.01Hz 0.01Hz 0.01Hz
102 to 110 (initial value) 1r/min

1r/min

1r/min

1r/min

0.01 to 9998
2 to 10
0.001
(Machine speed

)
0.001
(Machine speed

)
0.001
(Machine speed

)
0.01Hz
102 to 110 0.01Hz 0.01Hz 0.01Hz 0.01Hz

Motor speed r/min conversion formula............... frequency

120/number of motor poles (Pr.144)
Machine speed conversion formula ..................... Pr.37

speed/3000r/min
For Pr.144 in the above formula, the value is " Pr.144 -100" when "102 to 110" is set in Pr.144 .