Control circuit
39
2
Safety stop signal
For the safety stop function, refer to
Common terminal
Sink logic is initially set for the FM-type inverter.
Source logic is initially set for the CA-type inverter.
Terminal
symbol
Terminal name
Common
Terminal function description
Rated specification
S1
Safety stop input
(Channel 1)
SIC
Use terminals S1 and S2 to receive the safety stop signal
input from the safety relay module. Terminals S1 and S2 can
be used at a time (dual channel).
The Inverter judges the condition of the internal safety circuit
from the status (shorted/opened) between terminals S1 and
SIC, or between S2 and SIC. When the status is opened, the
inverter output is shut off.
In the initial status, terminal S1 and S2 are shorted with
terminal PC by shorting wires. Terminal SIC is shorted with
terminal SD. Remove the shorting wires and connect the
safety relay module when using the safety stop function.
Input resistance: 4.7
k
Ω
, input current: 4 to 6
mADC (with 24 VDC
input)
S2
Safety stop input
(Channel 2)
So (SO)
Safety monitor output
(open collector output)
SOC
The output status varies depending on the input status of the
safety stop signals.
The output is in HIGH state during occurrence of the internal
safety circuit failure. The output is in LOW state otherwise.
(The open collector transistor is ON (conductive) in LOW
state. The transistor is OFF (not conductive) in HIGH state.)
Refer to the Safety Stop Function Instruction Manual if the
output becomes in HIGH state even though both terminals
S1 and S2 are open. (Contact your sales representative for
this manual.)
Permissible load: 24
VDC (27 VDC at
maximum), 0.1 A (The
voltage drop is 3.4 V at
maximum while the
signal is ON.)
Terminal
symbol
Common
Terminal name
Terminal function description
Rated specification
SD
—
Contact input common
(sink)
Common terminal for the contact input terminal (sink logic),
terminal FM.
—
External transistor
common (source)
Connect this terminal to the power supply common terminal of a
transistor output (open collector output) device, such as a
programmable controller, in the source logic to avoid malfunction
by undesirable current.
24 VDC power supply
common
Common terminal for the 24 VDC power supply (terminal
PC, te24).
Isolated from terminals 5 and SE.
PC
—
External transistor
common (sink)
Connect this terminal to the power supply common terminal
of a transistor output (open collector output) device, such as
a programmable controller, in the sink logic to avoid
malfunction by undesirable current.
Power supply voltage
range: 19.2 to 28.8
VDC, permissible load
current: 100 mA
Contact input common
(source)
Common terminal for contact input terminal (source logic).
SD
24 VDC power supply
Can be used as a 24 VDC 0.1 A power supply.
5
—
Frequency setting
common
Common terminal for the frequency setting signal (via
terminal 2, 1, or 4) and for the analog output terminals AM
and CA. Do not earth (ground).
—
SE
—
Open collector output
common
Common terminal for terminals RUN, SU, OL, IPF, FU
—
SIC
—
Safety stop input
terminal common
Common terminal for terminals S1 and S2.
—
SOC
—
Safety monitor output
terminal common
Common terminal for terminal So (SO).
—
