447

Option

Terminal

Function Name

State

 

Description

 

 

 

Code

Symbol

 

 

 

 

 

 

 

 

 

 

 

 

07

FBV

Feedback Value

ON

Transitions to ON when the inverter is in RUN

 

 

Check

 

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

 

 

 

Valid for inputs:

11, AL0 – AL2

 

Example for terminal [11] (default output

Required settings

A076, C052, C053

 

configuration shown – see page 3-54):

 

 

 

 

 

 

 

Notes:

 

 

 

Inverter output

 

 

 

The [FBV] is designed for implementing two-

terminal circuit

FBV

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.

 

CM2

 

 

11

 

The example circuit for terminal [11] drives a

relay coil. Note the use of a diode to prevent the

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

negativegoing turn-off spike generated by the

 

 

 

 

 

 

RY

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

coil from damaging the inverter’s output

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

transistor.

 

 

 

 

 

 

 

 

 

 

Example for terminal [AL0], [AL1], [AL2] (requires

 

output configuration – see page 4-35 and 3-54):

 

Inverter logic

 

 

FBV

 

circuit board

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

AL0

 

AL1

AL2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Power

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Load

 

 

 

 

supply

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Operations and Monitoring

See I/O specs on page 4-6

Page 186
Image 186
Hitachi X200 Series instruction manual Transitions to OFF when the PID Feedback