Amada MD Series, Operation Manual

Page: 17 / 111

MD Series
4. Name and Functions of Each Section
4-5
Pin No. Description
20
PO SEL
Input pin for output changeover selection. (This function is provided
only for
MD-B5000A .)
The direction of the welding current flow when the circuit is open is
opposite to that when the circuit is closed. (Refer to
5. (5)
2
MD-B
series .)
21
ERR RESET
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 input (2ND signal)
opened.
23
GOOD
Normal signal output pin.
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.)
24
END
End signal output pins.
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.)
25
READY
Ready signal output pins.
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