Hitachi SJ2002 Series Instruction Manual page 191

Option Terminal
Function Name
Code Symbol
07 FBV Feedback Value
Check
11, 12, AL0 – AL2
Valid for outputs:
A076, C052, C053
Required settings:
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.
Output
State
ON •
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
Example (requires output configuration—
see page 3–52):
Inverter output
terminal circuit
H O OI
Example for terminals [AL0], [AL1], [AL2]
(requires output configuration—
4–37
see pages
Inverter logic
circuit board
See I/O specs
on page 4–6.
SJ200 Inverter
2
Description
FBV
L FM CM2 12 11
+
RY
–
and 3–52):
FBV
AL0 AL1 AL2
Power
Load
supply
4–49