IS-120B
6. Interface
6-3
･
Pin 16 :
Input terminal for parity check or start signal.
Used as input terminal for parity check, when interrupt mode switch
is OFF.
Used as input terminal for start signal when interrupt mode switch is
ON; then, schedule input, normally used as start signal, has only
schedule selecting function.
･
Pin 17 :
Emergency stop input terminal. Operation is stopped when this
terminal is open. This function is not for Interlock.
･
Pin 18 :
Common terminal for inputs.
･
Pin 19 :
Error reset input terminal. If this terminal is closed, error output is
reset.
･
Pin 20 :
Step reset input terminal. If this terminal is closed when
STEPPER
is
turned on,
STEP
is set to 1.
･
Pins 21, 22 :
(
＊
1)
IS-120B-00, IS-120B-03
Input terminals for a flow switch. If these are open, flow switch error
is detected.
(
＊
2)
IS-120B-02
Input for
WE1 STOP
.
If the signal of
Pins 21, 22
is closed during the operation when the
INTERRUPT
function is ON, the operating sequence moves to
COOL
or
WE2
. In addition, although the seal on the terminal strip
says
FLOW SWITCH
, there is no function of
FLOW SWITCH
here.
･
Pins 23, 24 :
Input terminals for weld ON/OFF signals. If these are closed, welding
is turned on.
･
Pin 25 :
Common terminal for inputs.
･
Pin 26 :
Input terminal for thermostat. Connect this terminal to thermostat of
transformer or that of diode. If this terminal is open, thermostat error
is detected.
This terminal must be open when Miyachi’s weld trans is connected
by [SENS] cable (See
5. Connection Procedures
)
･
Pin 27 :
Weld count input terminal or interrupt input terminal.
Used as weld count input terminal, when interrupt mode switch is
OFF and WELD COUNT
(
Weld count monitor function
)
is ON, to
see if number of welds to which
WELD COUNT
has been set is
performed while this terminal is closed.
If interrupt mode switch has been turned on and this terminal is
closed during operation, operation sequence will proceed to
HOLD
.
･
Pin 28 :
Common terminal for Pins 29, 30 and 31.
･
Pin 29 :
Count Error output terminal
(
Open collector
)
. This signal is output
when number of welds is not finished while WELD COUNT signal is
input.
･
Pin 30 :
Terminal for WELD ON timing output
(
Open collector
)
.
Use for squeeze timing for Miyachi Technos Weld Checker
MM-356A
.
