MD Series
4. Name and Functions of Each Section
4-6
Terminal
No.
Description
17
[ERR RESET] terminal
When a fault is displayed, remove the cause of the fault and close the
circuit. This resets the fault display.
Be sure to reset with the Start inputs ([1st.STAGE] and
[2nd.STAGE] terminals) opened.
18
[CNTR RESET] terminal
Closes the circuit to reset the counter.
20.21
[OPTION] terminals
Reserve input terminals. (Keep these terminals open without connecting,
otherwise the equipment may be damaged.)
23.24
[GOOD] terminals
Normal signal output terminal.
Closes the circuit for a certain duration when the measured value is judged
to be within the range set on the COMPARATOR screen after the weld
sequence is over.
The circuit-closing time can be set within the range of 10–200 ms in 10 ms
steps.
The contact rating is 24 V DC, 20 mA. (A semiconductor switch is used.)
25.26
[NG]
terminals
Fault signal output terminals. The circuit is closed when the power supply
is turned on. The circuit is opened in the following cases:
･
When the measured value exceeds the range set on the COMPARATOR
screen and the PRECHECK screen after the weld sequence is over.
･
When operational trouble occurs.
When a fault occurs, operation is stopped until the reset signal is input.
You can change the function so that the circuit is opened normally and
closed in the case above. (Refer to
6.(6)
⑫
NG SIGNAL TYPE
.)
The contact rating is 24 V DC, 20 mA. (A semiconductor switch is used.)
27.28
[END] terminals
End signal output terminals.
Close the circuit for a certain duration after sequence operation is over.
The circuit-closing time can be set within the range of 10–200 ms in 10 ms
steps.
The signal is output during sequence operation in the WELD OFF state as
well.
The contact rating is 24 V DC, 20 mA. (A semiconductor switch is used.)
29.30
[CAUTION] output terminals
Caution signal output terminals.
If a fault occurs in items that are set in the ON position for ERROR
SETTING (Refer to
6.(6)
⑳
ERROR SETTING
) on the STATUS screen,
this circuit is closed after the weld sequence is over.
If a fault occurs, operation can be continued without stopping the
sequence.
To cancel the output, input the reset signal or start signal.
The contact rating is 24 V DC, 20 mA. (A semiconductor switch is used.)
31.32
[READY]
terminals
Ready signal output terminals.
Closed at the time when weld current is ready for being supplied. Open
during welding, charging or in the occurrence of NG.
The contact rating is 24 V DC, 20 mA. (A semiconductor switch is used.)
CAUTION
Summary of Contents for MD-A8000B-05 Series
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