Hitachi WJ200-001L, Instruction Manual

Page: 280 / 680

4

73
Option
Code
Terminal
Symbol
Function Name State Description

FBV Feedback Value
Check ON

Transitions to ON when the inverter is in RUN
Mode and the PID Process Variable (PV) is less
than the Feedback Low Limit (

)
OFF

Transitions to OFF when the PID Feedback Value
(PV) exceeds the PID High Limit (

)

Transitions to OFF when the inverter goes from
Run Mode to Stop Mode
Valid for inputs: 11, 12, AL0
– AL2
Example for terminal [11] (default output
configuration shown
– see
page 3-89 ):
Example for terminal [AL0], [AL1], [AL2] (requires
output configuration
– see
page 4-51 and 3-91 ):
See I/O specs on
page 4-6
Required settings

,

,

Notes:

The [FBV] is designed for implementing two-stage
control. The PV high limit and PV low limit
parameters,

and

, do not function as
process alarm thresholds. Terminal [FBV] does
not provide a PID alarm function.

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.
RY
Inverter output
terminal circuit
CM2 11
FBV
AL1
Power
supply
Load
AL0 AL2
Inverter logic
circuit board FBV