Formech IMD508, Installation, Operating And Service Manual

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Manual - Formech IMD508
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Heater Security Function
When the Heater Security function is ON, interlocks provide protection against raising the table into the top
heater.
When the function is OFF, the top heater interlocks are removed allowing the table to be raised before the
top heater retracts.
Also when the function is OFF the pre-stretch and Plug function will be disabled.
The Mould height must be less than 100mm.
For the timed cycle the Mould table will be raised at the end time of the top heating stage and a ‘top heater
retract delay time’ will maintain the heater in position for a time set ; 1-5 seconds. Value is set in Top Heater
Settings screen. See Process Timer Settings.
For the pyrometer control cycle the Mould table is commanded UP when the pyrometer measurement
reaches the target temperature and a ‘top heater retract delay time’ will maintain the heater in position for
a time set ; 1-5 seconds. Value is also set in the Top Heater settings screen.
The timed bottom heater cycle may be used with this security function OFF but the bottom heater time
must be set to 5 second less than the Top heater time to allow the bottom heater to retract before the table
rises. If the bottom heater time is not set as such then the table will not rise as its command is prohibited by
the heater position (Bottom Heater must be retracted to allow table movement). Mould heights and table
positions will always apply.
The Pyrometer controlled cycle may be used with the bottom heater with the heater security function OFF
but the ‘Bottom Heater retract advance temperature setting’ must be set from 1-5 deg. This will retract the
bottom heater at the set value (1-5 deg) before the pyrometer target temperature and thus allow the table
to rise at the target temperature while the top heater remains forwards.
Operation - Setup functions for Semi-Automatic Cycle