Amada MD-A8000B-05 Series, Operation Manual

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MD Series
4. Name and Functions of Each Section
4-4
① Control signal terminal strip
Terminal
No.
Description
1
[INT.24V] terminal
24 V DC is output.
Connect Terminal 1 to Terminal 2 to use a contact or NPN transistor (open
collector) as input signals (for starting and schedule selection).
Use Terminal 1 only for connection to Terminal 2 or
Terminal 3. Connection to other terminals will result in
equipment failure.
2
[EXT.COM] terminal
Connect Terminal 2 to Terminal 1 to use an NPN transistor. This terminal is
used as a COM terminal when a PNP transistor is used. (Refer to
5.
Connection .)
3
[STOP] terminal
In most cases, connect Terminal 3 to Terminal 1.
When this terminal is opened, an operation stop error is displayed and
operation stops.
Open this terminal to stop the sequence in the middle of operation when
using the start function with self-holding.
This terminal does not have the emergency stop function.
When emergency stop is necessary, install a circuit that
breaks power supply to the equipment.
4
[1st.STAGE] terminal
1st.STAGE start input terminal.
Set START SIG. INPUT on the STATUS screen before using this terminal.
(Refer
to 6.(6)
⑰ START SIG. INPUT .)
To start the weld sequence with the combination of the [1st.STAGE] and
[2nd.STAGE] terminals, set START SIG. INPUT to 1ST+2ND.
[When START SIG. INPUT is 1ST+2ND]
Close this terminal, and 24 V DC is output from the [SOL] terminal of
Terminals 33 and 34.
When the [1st.STAGE] terminal is opened in this state, the weld force is
released.
Since the weld sequence will not be started, the compression position can
be adjusted or checked.
When the [2nd.STAGE] is closed with the [1st.STAGE] terminal closed, the
weld sequence starts and
welding at an optimal position is possible.
When the [1st.STAGE] terminal is open, the weld sequence does not start
even if the [2nd.STAGE] terminal is closed.
[When START SIG. INPUT is 2ND]
The weld sequence does not start even if the 1st.STAGE terminal is closed.
To use the [1st.STAGE] terminal, set START SIG.INPUT to 1ST+2ND.
CAUTION
CAUTION