Voltage Input (Pr. 73, Pr. 254) - Mitsubishi Electric FR-E 500 Instruction Manual

" " Voltage input (Pr. 73)

4.2.28 Voltage input (Pr. 73, Pr. 254)

Pr. 73 "0-5V/0-10V selection"
Pr. 254 "analog polarity reversible lower
limit "
! 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
254
Note: When setting "10" or "11" in Pr. 73 and any value in Pr. 254, set "801" in Pr. 77.
Parameter Number
73
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.
" 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".
Ex.) When setting 0Hz and 2.5V in Pr.902 and 50Hz and 5V in Pr. 903 to give a
forward rotation command
Output frequency[Hz]
Pr. 902
0V 0Hz 2.5V
(0V) (5V)
Output frequency[Hz]
Pr. 73 = "0" or "1"
When Pr.73 = "10" as factory-set, Pr.902 = 2.5V. When Pr.73 = "11", Pr.902 = 5V.
Factory Setting
0
9999
Setting Terminal 2 Input Voltage
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
Pr. 903
Forward
Input voltage
rotation
(Terminal 2)
5V
[V]
(10V)
Use Pr. 73
Related parameters
Pr. 38 "frequency at 5V (10V) input"
Pr. 902 "frequency setting voltage bias"
Pr. 903 "frequency setting voltage gain"
Setting Range
0, 1, 10, 11 (Note)
0 to 100%,
9999 (Note)
Output frequency[Hz]
Pr. 902
0Hz
0V
2.5V
Reverse
(5V)
rotation
Output frequency[Hz]
Pr. 73 = "10" or "11"
100
PARAMETERS
Remarks
9999 : Function invalid
Polarity Reversible
No
Valid
Pr. 903
Forward
Input voltage
rotation
(Terminal 2)
5V
[V]
(10V)
Use Pr. 73