Doosan MX 2000 Operating instructions

Machine Tools
ATC Troubleshooting
(MX 2000/2500/3000)

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MX 2000/2500/3000 MX25ATCE26
◈ ATC Troubleshooting (MX 2000/2500/3000)
If the changer arm is stopped for any reason while changing the tools (M06), you must return the
changer arm to the home position manually.
However, the countermeasures may differ according to the cause of trouble. So please find out
the exact cause before restoring or repairing the machine.
(1) If the changer arm is stuck while trying to pull out a tool from the spindle
In most cases, this happens when the changer arm is stuck in the spindle while trying to pull
out a tool after tool unclamping is performed
, causing to trigger the " 2103 M06 Command
Over Time” alarm.
(2) If the changer arm is stuck in the spindle after changing a tool
In most cases, this happens when the changer arm gripper is stuck in a tool after the changer
arm changed the tool and performed the tool clamping
, causing to trigger the " 2023 M06
Command Overtime” alarm.
(3) If the changer arm has stopped operation irrelevantly to the spindle
This happens if the machine is emergency-stopped for a reason, or there occurred a power
failure while performing the tool changing.
(1) If the changer arm is stuck while trying to pull out a tool from the spindle
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If the changer arm is stuck while trying to pull out a tool from the spindle

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MX 2000/2500/3000 MX25ATCE26
1) If this happens due to the emergency stop or power
failure, take an appropriate measure to solve the
problem
and turn the power back on before entering
Machine Ready.
2) Select the “JOG” mode in the main OP.
3) Turn the mode selection switch in the ATC manual
OP to
“MANUAL” .
4) Turn the mode switch in the ATC manual OP to
“ATC STEP REV.” .
5) Use the manual Spindle Tool Clamp/Unclamp
switch in the milling spindle to perform the tool
clamping.
6) Repeat pressing briefly the “START” button in the
ATC manual OP until the main changer arm moves
to the home position where it doesn't move further.

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MX 2000/2500/3000 MX25ATCE26
☞ In this case, the changer arm is stuck in the spindle for a reason while changing a tool.
Return the changer arm to the home position and find the cause by performing the tool
unclamping manually.
If the manual tool unclamping does not work at all, gently impact on the tool to remove it
with the hammer. Then, check the tool kick distance, the state of the unclamp cylinder,
collet, and the tapering side of the spindle or tool to find out the cause of trouble and take a
necessary measure.
7) Turn the mode selection switch on the ATC manual
OP to
“TOOL CHANGE 1 CYCLE” , and press the
“START” button to perform the tool changing
automatically. Then, the alarm 2103 will be
released and the ATC home position will be
recovered.
☞ If the Tool Change 1 Cycle operation is not
performed, check the “Conditions of Tool Change
1 Cycle ” below:
※
Conditions of Tool Change 1 Cycle
① Turn the mode switch in the ATC manual OP to “ATC 1- CYCLE” \
② Switch the mode selection switch in the ATC manual OP to “MA NUAL” .
③ Waiting Pot Spindle Side (X10.5)
④ ATC Main Changer Home Position (X8.2)
8) When ATC home positioned is restored successfully, check between tool number in PMC data
screen and actual tool in the machine, and make correction if they do not match.
Select SYSTEM > PMC > PMC DATA > G.DATA, and check the tool number (D450) in the
spindle as well as the tool number (D448) in the waiting pot. Make correction if necessary.
▪D450 : Tool number in the spindle
▪D448 : Tool number in the waiting pot
9) Turn the switch to “ATC DOOR CLOSE”
and press
the START button to close the ATC door.
10)
When each axis returns to their respective home position, ATC troubleshooting will be
completed.

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MX 2000/2500/3000 MX25ATCE26
(2) If the changer arm is stuck in the spindle after changing a tool
`
1) If this happens due to the emergency stop or power
failure, take an appropriate measure to solve the
problem
and turn the power back on before entering
Machine Ready.
2) Select the “JOG” mode in the main OP.
3) Turn the mode selection switch in the ATC manual
OP to
“MANUAL” .
If the changer arm is stuck in the spindle after it changed a tool

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MX 2000/2500/3000 MX25ATCE26
4) Turn the mode switch in the ATC manual OP to
“ATC STEP REV.” .
5) If the spindle is in the process of tool clamping,
manually perform the tool unclamping.
6) Pull out the tool (that is supposed to change) from
the changer arm.
① Repeat pressing briefly the “START” button in
the ATC manual OP until the main changer arm
is removed completely from the spindle.
② Press the locking pin of the changer arm with
force before pulling out either tools.
7) When done, repeat pressing briefly the “START”
button until the changer arm moves to the home
position.
☞ If the main changer arm doesn't move further
even by your pressing the
“START” button,
this indicates that the main changer arm
reaches its home position.

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MX 2000/2500/3000 MX25ATCE26
8) Perform the tool clamping manually.
9) Turn the mode selection switch on the ATC manual
OP to
“ATC 1- CYCLE” , and press the “START”
button to perform the tool changing automatically.
Then, the alarm 2103 will be released and the ATC
home position will be restored.
☞ If the Tool Change 1 Cycle operation is not
performed, check the “Conditions of Tool
Change 1 Cycle ” below:
※
Conditions of Tool Change 1 Cycle
① Turn the mode switch in the ATC manual OP to “ATC 1- CYCLE”
② Switch the mode selection switch in the ATC manual OP to “MA NUAL” .
③ Waiting Pot Spindle Side (X10.5)
④ ATC Main Changer Home Position (X8.2)
10) When ATC home positioned is restored successfully, check between tool number in PMC
data screen and actual tool in the machine, and make correction if they do not match.
Select SYSTEM > PMC > PMC DATA > G.DATA, and check the tool number (D450) in the
spindle as well as the tool number (D448) in the waiting pot. Make correction if necessary.
▪D450 : Tool number in the spindle
▪D448 : Tool number in the waiting pot
11) Turn the switch to “ATC DOOR CLOSE” and
press the
START button to close the ATC door.
12)
When each axis returns to their respective home position, ATC troubleshooting will be
completed.

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MX 2000/2500/3000 MX25ATCE26
(3) If the changer arm has stopped operation irrelevantly to the spindle
1) If this happens due to the emergency stop or power
failure, take an appropriate measure to solve the
problem
and turn the power back on before entering
Machine Ready.
2) Select the “JOG” mode in the main OP.
3) Turn the mode selection switch in the ATC manual
OP to
“MANUAL” .
If the changer arm has stopped operation irrelevantly to the spindle

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MX 2000/2500/3000 MX25ATCE26
4) Turn the mode switch in the ATC manual OP to
“ATC STEP REV.” .
5) Check the stop position of the changer arm. Press
briefly the
“START” button in the ATC manual OP
to check the operation direction of the changer
arm.
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-1) If the changer arm is completely pulled out of the
spindle, or if it moves outside of the spindle by
your pressing briefly the
“START” button
① Repeat pressing briefly the “START” button in
the ATC manual OP until the main changer
arm is removed completely from the spindle.
② Press the locking pin of the changer arm with
force before pulling out either tools.
③ Perform the tool clamping manually.
5-2) If it moves inside of the spindle by your pressing
briefly the
“START” button
① Repeat pressing briefly the “START” button
until the main changer arm inserts to the end
of the spindle and stops.
☞ An excessive number of pressing may get
the changer arm off of the spindle,
causing a fall of the tool. So you must
stop pressing the button when the tool is
inserted nearly to the end of the spindle.
② Perform the tool clamping manually.

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MX 2000/2500/3000 MX25ATCE26
6) Repeat pressing briefly the “START” button in the
ATC manual OP until the main changer arm
moves to the home position where it doesn't move
further.
☞ If the main changer arm doesn't move further
even by your pressing the
“START” button,
this indicates that the main changer arm
reaches its home position.
7) Turn the mode selection switch on the ATC manual
OP to
“ATC 1- CYCLE” , and press the “START”
button to perform the tool changing automatically.
Then, the alarm 2103 will be released and the ATC
home position will be restored.
☞ If the Tool Change 1 Cycle operation is not
performed, check the “Conditions of Tool
Change 1 Cycle ” below:
※
Conditions of Tool Change 1 Cycle
① Turn the mode switch in the ATC manual OP to “ATC 1- CYCLE”
② Switch the mode selection switch in the ATC manual OP to “MA NUAL” .
③ Waiting Pot Spindle Side (X10.5)
④ ATC Main Changer Home Position (X8.2)
8) When ATC home positioned is restored successfully, check between tool number in PMC data
screen and actual tool in the machine, and make correction if they do not match.
Select SYSTEM > PMC > PMC DATA > G.DATA, and check the tool number (D450) in the
spindle as well as the tool number (D448) in the waiting pot. Make correction if necessary.
▪D450 : Tool number in the spindle
▪D448 : Tool number in the waiting pot
9) Turn the switch to “ATC DOOR CLOSE”
and press
the START button to close the ATC door.
10)
When each axis returns to their respective home position, ATC troubleshooting will be
completed.

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MX 2000/2500/3000 MX25ATCE26
ATC Troubleshooting MX 2000/2500/3000
Revision History
Version Year/Month Revision history Created by
01 2012. 06 Created a draft (MX25ATCE26) Jung, Sam Young
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