Table 9-2 Fault and Warning Messages
Error
Message
Cause Action
AMPS The controller is unable to supply the current
request.
Note: This error message is most likely to be
seen if the particular zone is set as a Spear
type.
• Isolate system supply, check loom
and check heater wiring continuity.
• Check the heater resistance against
other known good zones to see
that it is not noticeably higher than
average.
ERR! Little or no temperature rise has been detected
in that zone.
When the console starts to apply power it
expects to see an equivalent heat rise at the
thermocouple.
If the thermocouple has been trapped and
pinched in the tool or cable then the console
cannot see the full heat rise that occurs at the
tip. If left uncorrected there is a danger that the
zone could overheat and damage the tip.
The circuit maintains the output at whatever
level it reached when the monitor circuit
detected the fault.
• Check thermocouple wiring, which
may be reversed.
• Heater wiring may be faulty or
element may be open circuit.
FUSE The output fuse for that zone has failed.
IMPORTANT: Read hazard warnings at the
start of Section 8.
IMPORTANT: A fuse can only fail due to a fault
external to the controller. Identify and rectify the
fault before replacing the fuse.
Note: If the fuse in question is mounted on a
control card then it is safe to unplug the board
in order to isolate the circuit and replace the
fuse on the card.
• Replace the fuse with one of the
same rating and type [High Rupture
Current load fuse].
NOTE: The blown fuse is located on the
control card.
GND The system has detected an earth fault. • Check your heater wiring for a low
impedance path to earth.
HELP There is a system failure and the console does
not know how to respond.
This alarm may occur if an older model console
is connected to a later version cabinet. If the
early version console does not recognize
an alarm that has been generated by a later
model control card, then it cannot display an
appropriate alarm message.
The console software has a routine to check
incoming messages and it ags up a HELP
message if such a condition arises.
• Make a note of the serial numbers
for both the controller and console.
• Also note the console software date
on Information screen.
• Contact your supplier with this
information.
HTR! The heater resistance is not what is expected
or the heater is open circuit.
• Check heater resistance is correct
with a meter.
9.4 Fault and Warning Messages
9-3
© 2021 Mold-Masters (2007) Limited. All Rights Reserved.
TROUBLESHOOTING
M2+ Controller User Manual
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