Using Intelligent Output Terminals - Hitachi SJ100 Series Instruction Manual

Using Intelligent Output Terminals

The intelligent output terminals are programmable in a similar way to the intelligent
input terminals. The inverter has several output functions which you can assign individu-
ally to three physical logic outputs. Two of the outputs are open-collector transistors, and
the third output is the alarm relay (form C – normally open and normally closed
contacts). The relay is assigned the alarm function by default, but you can assign it to
any of the functions that the open-collector outputs can use as well.
Run Signal
When the [RUN] signal is selected as an
intelligent output terminal, the inverter
outputs a signal on that terminal when it is in
the Run Mode. The output logic is active low,
and is the open collector type (switch to
ground).
Option Terminal
Function Name
Code Symbol
00 RUN Run signal
11, 12, AL0 – AL2
Valid for outputs:
Required settings: (none)
Notes:
•
The inverter outputs the [RUN] signal whenever the
inverter output exceeds the start frequency specified
by parameter B82. The start frequency is the initial
inverter output frequency when it turns on.
NOTE: The example circuit in the table above 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.
[FW, RV]
Motor
speed
B82
Run
Signal
Output
State
ON when inverter is in Run Mode
OFF when inverter is in Stop Mode
Example:
Inverter output
terminal circuit
H O OI
See I/O specs on page 4–5.
4–21
SJ100 Inverter
start freq.
ON
time
Description
RUN
FM CM2
L 12 11
+
RY
–