Undervoltage Signal - Hitachi WJ200 Series Instruction Manual

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Undervoltage Signal

The inverter outputs the undervoltage signal when it detects that the inverter is in
undervoltage situation.
To enable this function, assign
Option Terminal
Code Symbol
UV
09
Valid for inputs:
Required settings
Notes:
• The example circuit for terminal [11] drives a relay
coil. Note the use of a diode to prevent the
negative-going turn-off spike generated by the coil
from damaging the inverter's output transistor.
"09
Function Name State
Undervoltage signal
11, 12, AL0 – AL2
(UV)" to an intelligent output terminal.
ON Inverter is in undervoltage
OFF Inverter is in normal condition
Example for terminal [11] (default output
configuration shown – see
Inverter output
terminal circuit
Example for terminal [AL0], [AL1], [AL2] (requires
output configuration – see
Inverter logic
circuit board
AL0
Power
supply
See I/O specs on
Description
page 3-90):
UV
CM2 11
RY
page 4-52 and 3-90):
UV
AL1 AL2
Load
page 4-6