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Output Phase Failure Protection Selection (pr. 251); Override Bias/gain (pr. 252, Pr. 253) - Mitsubishi Electric FR-A500 Instruction Manual

Transistorized inverter.
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4.2.57 Output phase failure protection selection (Pr. 251)

Pr. 251 "output phase failure protection selection"
You can make the output phase failure protection (E.LF) function which stops the inverter output invalid if one
of the three phases (U, V, W) on the inverter's output side (load side) becomes open.
Parameter
Setting
Number
Range
251
0,1

4.2.58 Override bias/gain (Pr. 252, Pr. 253)

Pr. 252 "override bias"
Pr. 253 "override gain"
When override is selected in Pr. 73 "0 to 5V, 0 to 10V selection", the override range can be extended from
50%-150% to 0%-200% and set as desired.
Parameter Number
252
253
Minimum
Setting
Factory Setting
Increments
1
1
Minimum Setting
Setting Range
Increments
0 to 200%
0 to 200%
200
150
Pr. 252
100
Pr. 253
50
0
0V
Description
0: Without output phase failure protection
1: With output phase failure protection
Related parameters
Pr. 73 "0 - 5V / 0 - 10V selection"
Factory Setting
0.1%
50%
0.1%
150%
Factory setting
(50% to 150%)
2.5V
5V
(5V)
(10V)
Voltage across 2-5
167
PARAMETERS
4

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