Mitsubishi Electric MELDAS C6 Instruction Manual page 463

The bold characters are the messages displayed on the screen.
Message
Z52 BATTERY
FAULT
Z53 TEMP.
OVER
Z55 RIO NOT
CONNECT
Z59 TIME
CONSTANT
CAUTION
(Note 1) Temperature warning
Z53 Overheat
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The voltage of the battery inserted in the
NC control unit has dropped. (The
battery used to save the internal data)
The controller or operation board
temperature has risen above the
designated value.
This occurs when an error occurs in the
communication between the controller
and remote l/O unit.
• Cable breakage
• Remote l/O unit fault
• Power supply to remote l/O unit fault
Acceleration and deceleration time
constants are too large.
(This alarm is output at the same time as
"T02 FEED HOLD 0206.")
If the battery low warning is issued, save the machining programs, tool data and parameters in
an input/output device, and then replace the battery. When the battery alarm is issued, the
machining programs, tool data and parameters may be destroyed. Reload the data after
replacing the battery.
Do not replace the battery while the power is ON.
Do not short circuit, charge, heat, incinerate or disassemble the battery.
Dispose of the spent battery following local laws.
If the alarm is displayed when an overheat alarm is detected‚ the overheat signal will be
output simultaneously. If the machine is in automatic operation‚ the operation will be
continued‚ but restarting will not be possible after resetting or stopping with M02/M30.
(Starting will be possible after block stop or feed hold.) The alarm will be reset and the
overheat signal will turn off when the temperature drops below the specified temperature.
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7. List of Alarms
7.5 System Alarms
Details
(Note 1)
(Note 2)
0 0 0
1 : The temperature in the controller is high.
2 : The temperature around the communication terminal
is high.
3 : Both temperatures in the controller and that around
the communication terminal are high.
IV - 47
Remedy
• Replace the battery of the NC control
unit.
• After treating the battery‚ check the
machining program‚
• Cooling measures are required.
Turn off the controller power‚ or lower
the temperature with a cooler‚ etc.
• Check and replace the cables.
• Replace the remote I/O unit.
• Check the power supply. (existence of
supply‚ voltage)
• Increase the value specified as the
"#1206 G1bF" parameter.
• Decrease the value specified as the
"#1207 G1btL" parameter.
• Lower the cutting speed.