Hitachi CP-X200 Instruction Manual page 198

Option Terminal
Code Symbol
07 FBV Feedback Value
Check
Valid for inputs: 11, AL0 – AL2
Required settings
A076, C052, C053
Notes:
The [FBV] is designed for implementing two-
stage control. The PV high limit and PV low
limit parameters, C052 and C053, 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.
Function Name State
ON
OFF
Description
Transitions to ON when the inverter is in RUN
Mode and the PID Process Variable (PV) is less
than the Feedback Low Limit (C053)
Transitions to OFF when the PID Feedback
Value (PV) exceeds the PID High Limit (C052)
Transitions to OFF when the inverter goes from
Run Mode to Stop Mode
Example for terminal [11] (default output
configuration shown – see
Inverter output
terminal circuit
CM2
Example for terminal [AL0], [AL1], [AL2] (requires
output configuration – see
Inverter logic
circuit board
AL0 AL1
Power
supply
See I/O specs on page 4-6
4 − 49
4 49
page 3-54):
FBV
11
RY
page 4-35 and 3-54):
FBV
AL2
Load