Run Signal - Hitachi L2002 Instruction Manual

4–38
Using Intelligent Output Terminals

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
Run Mode. The output logic is active low, and
is the open collector type (switch to ground).
Option Terminal
Code Symbol
00 RUN
Valid for outputs:
Required settings:
Notes:
•
The inverter outputs the [RUN] signal whenever the
inverter output exceeds the start frequency specified
by parameter B082. The start frequency is the initial
inverter output frequency when it turns ON.
•
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
Function Name
State
Run Signal ON
OFF
11, 12, AL0 – AL2
(none)
[FW],
1
[RV]
0
B082
Output
start freq.
freq.
Run
1
Signal
0
Description
when inverter is in Run Mode
when inverter is in Stop Mode
Example for terminals [11] and [12] (default
output configuration shown—see page 3–54):
Inverter output
terminal circuit
+
RY
–
Example for terminals [AL0], [AL1], [AL2]
(requires output configuration—
4–36
see pages and 3–54):
Inverter logic
circuit board
AL0
Power
See I/O specs
supply
on page 4–6.
ON
t
RUN
CM2 12 11
RUN
AL1 AL2
Load