Hitachi WJ200-001S Instruction Manual page 275

468
Speed Deviation Excessive Signal
The inverter outputs the detection signal when the deviation between the set speed
and actual motor speed becomes less the threshold level (). This function is valid
when connecting the encoder feedback to the inverter.
To use this function, assign
Option Terminal
Code Symbol

DSE
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.
" (DSE)" to one of the intelligent output terminals.
Function Name State
Speed deviation
excessive signal
11, 12, AL0 – AL2

ON Deviation between the speed command and motor
speed is less than
OFF Deviation between the speed command and motor

speed exceeds
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):
DSE
CM2 11
RY
page 4-51 and 3-91):
DSE
AL1 AL2
Load
page 4-6