XLT Hitachi X200 User Manual

Page 198

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Option

Code

Terminal

Symbol

Function Name

State

Description

ON

x Transitions to ON when the inverter is in RUN

Mode and the PID Process Variable (PV) is less
than the Feedback Low Limit (C053)

07

FBV

Feedback Value
Check

OFF

x Transitions to OFF when the PID Feedback

Value (PV) exceeds the PID High Limit (C052)

x Transitions to OFF when the inverter goes from

Run Mode to Stop Mode

Valid for inputs:

11, AL0 – AL2

Required settings

A076, C052, C053

Notes:

x 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.

x 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.

Example for terminal [11] (default output
configuration shown – see

page 3-54

):

Example for terminal [AL0], [AL1], [AL2] (requires
output configuration – see

page 4-35 and 3-54

):

See I/O specs on

page 4-6

RY

Inverter output
terminal circuit

CM2

11

FBV

AL1

Power
supply

Load

AL0

AL2

Inverter logic
circuit board

FBV

4

49

Operations and

Monitori

ng

4

−49

Operations and

Monitoring

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