Hitachi SJ200 Series User Manual

Page 174

SJ200 Inverter

Oper

ations

and Monitor

ing

4–47

Option

Code

Terminal

Symbol

Function Name

Output

State

Description

FBV

Feedback Value
Check

•

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

Valid for outputs:

11, 12, 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 param-
eters, C052 and C053, do not function as process
alarm thresholds. Terminal [FBV] does not provide
a PID alarm function.

•

The example circuit for terminal [12] 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.

+
–

12 11

H O OI

FM CM2

Example (requires output configuration—
see page

3–46

Inverter output
terminal circuit

FBV

Example for terminals [AL0], [AL1], [AL2]
(requires output configuration—
see pages

4–35

and

3–46