Voltage Input (Pr. 73) - Mitsubishi Electric FR-E540-0.4K-EC Instruction Manual

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Voltage input (Pr. 73)

4.2.28 Voltage input (Pr. 73)
Pr. 73 "0-5V/0-10V selection"
y You can change the input (terminal 2) specifications in response to the frequency
setting voltage signal. When entering 0 to 10VDC, always make this setting.
Parameter Number
73
Note: To set "10" or "11" in Pr. 73, first "801" must be set in Pr. 77.
Setting
0 For 0 to 5VDC input (factory setting)
1 For 0 to 10VDC input
10 For 0 to 5VDC input
11 For 0 to 10VDC input
Note: 1. To change the maximum output frequency at the input of the maximum
frequency command voltage, use Pr. 38. Also, the acceleration/deceleration
time, which is a slope up/down to the acceleration/deceleration reference
frequency, is not affected by the change in Pr. 73 setting.
2. When connecting a frequency setting potentiometer across terminals 10-2-5
for operation, always set "0" in this parameter.
z Polarity reversible operation
By changing the input voltage, you can switch
between forward rotation and reverse rotation.
Set "801" in Pr. 77 and "10" or "11" in
Pr. 73 to make this function valid.
1) Set the output frequency using Pr. 902
"frequency setting voltage bias" and Pr. 903
"frequency setting voltage gain". The output
frequency is 0Hz at the factory-set input
voltage of 2.5V (5V).
2) When Pr. 73 = "10" as factory-set, Pr. 902
= 2.5V. When Pr. 73 = "11", Pr. 902 = 5V.
Note: To calibrate the input voltage value at 0Hz, use Pr. 902 "frequency setting
voltage bias".
Do not design the wiring and facility which will make the voltage lower than the
Pr. 902 setting suddenly.
Doing so can cause the inverter to provide reverse rotation output if the analog
signal wiring is disconnected or the speed command analog signal turns to 0V,
resulting in hazardous conditions.
Factory Setting
0
Terminal 2 Input Voltage
WARNING
101
Related parameters
Pr. 22 "stall prevention operation level"
Pr. 38 "frequency at 5V (10V) input"
Setting Range
0, 1, 10, 11 (Note)
Polarity Reversible
Output frequency
[Hz]
Pr. 903
Pr. 902
0Hz
0V
2.5V
Reverse
(5V)
rotation
Output frequency
[Hz]
PARAMETERS
No
Valid
Forward
Input voltage
rotation
(Terminal 2)
5V
[V]
(10V)
Use Pr. 73