Mitsubishi Electric FR-F800 Series Instruction Manual page 356

200
150
Pr.252
100
Pr.253
50
0
0V
NOTE
• To use terminal 4, the AU signal needs to be turned ON.
• To make compensation input for multi-speed operation or remote setting, set Pr.28 Multi-speed input compensation
selection = "1" (with compensation) (initial value "0").
• After changing the Pr.73 setting, check the setting of the voltage/current input selection switch. Incorrect setting may cause a
fault, failure, or malfunction. (Refer to
Parameters referred to
Pr.28 Multi-speed input compensation
Pr.73 Analog input
5.9.4
The response level and stability of frequency command using the analog input signal (terminal 1, 2, or 4) can be adjusted.
Pr.
74
Input filter time constant
T002
822
Speed setting filter 1
T003
832
Speed setting filter 2
T005
849 Analog input offset
T007 adjustment
 Block diagram
Terminal 1 (2, 4) input
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Initial value
(50% to 150%)
2.5V 5V
(5V) (10V)
Voltage across terminals 2 and 5
selectionpage 263
selectionpage 349
Response level of analog input and noise
elimination
Name Initial value
1
9999
9999
100%
RT-OFF
RT-ON
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• Example) When Pr.73 = "5"
By the terminal 1 (main speed) and terminal 2 (auxiliary) input, the setting
frequency is set as shown in the figure below.
90
60
45
30
15
0
0
Terminal 1 input voltage (V)
page 349 for the setting.)
Setting range
Set the primary delay filter time constant to the analog input
0 to 8 command. If the setting is too large, response becomes
slow.
Set the primary delay filter time constant to the external
0 to 5 s
speed command (analog input command).
9999 As set in Pr.74.
Second function of Pr.822 (enabled when the RT signal is
0 to 5 s, 9999
ON)
Set offset for the analog speed input (terminal 2). The motor
0% to 200% is prevented from rotating due to noise in the analog input
or other factors when a zero speed command is given.
Pr.74
Pr.822 = 9999
Pr.822
Pr.822 ≠ 9999
Pr.832 = 9999
Pr.832
Pr.832 ≠ 9999
Terminal 2 5VDC
input(150%)
Terminal 2 2.5VDC
input(100%)
Terminal 2 0V
input(50%)
2.5 5
Description
Speed command
5. PARAMETERS
5.9 (T) Multi-function input terminal parameters
1
2
3
4
5
6
7
8
9
10
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