Hitachi WJ200-001S Instruction Manual page 269

462
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
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.
"
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 3-89):
UV
CM2 11
RY
page 4-51 and 3-91):
UV
AL1 AL2
Load
page 4-6