Hitachi L2002 - Manual (Page 182)

Using Intelligent Output Terminals
Oper
ations
and Monitor
ing
4–38
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).
[FW],
[RV]
Output
freq.
Run
Signal
start freq.
t
ON
1
0
1
0
B082
Option
Code
Terminal
Symbol
Function Name
Output
State
Description
00 RUN Run Signal ON when inverter is in Run Mode
OFF when inverter is in Stop Mode
Valid for outputs: 11, 12, AL0 – AL2
Required settings: (none)
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.
RY
+
–
Example for terminals [11] and [12] (default
output configuration shown—see page
3–54 ):
Inverter output
terminal circuit RUN
Example for terminals [AL0], [AL1], [AL2]
(requires output configuration—
see pages
4–36 and 3–54 ):
AL0 AL2 AL1
Inverter logic
circuit board
See I/O specs
on page
4–6 .
RUN
Load
Power
supply
12 11 CM2