Transitions to ON when the inverter is in RUN
Mode and the PID Process Variable (PV) is less
than the Feedback Low Limit (C053)
OFF
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
alid for inputs:
11, 12, AL0 – AL2 Example for terminal [11] (default output
configuration shown – see page 3-90):
Example for terminal [AL0], [AL1], [AL2] (requires
output configuration – see page 4-52 and 3-90):
See I/O specs on page 4-6
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.
RY
Inverter output
terminal circuit
CM2 11
FBV
AL1
Power
supply
Load
AL0 AL2
Inverter logic
circuit board
FBV
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