Habasit PM-1056/160, Общее руководство по использованию и техническому обслуживанию

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Habasit Italiana S.p.A.
Vittorio Veneto 31029 (TV)
Tel.: ++39(0)438.9113
Fax. ++39(0)438.200545
Use Manual
Hot Press PM-1056/160
Author: A.T.
OPERATION
Edition: 09/2004
Page
D-15
Replaces:
Hot Press type PM-1056/160
SECTION D.6 TROUBLESHOOTING
ATTENTION
Maintenance, repairs and replacement operations for electrical components must be carried
out by an ELECTRICAL MAINTENANCE TECHNICIAN or a QUALIFIED TECHNICIAN able
to perform the works in accordance with safety regulations.
T
ABLE
16 - T
ROUBLESHOOTING
Faults Solutions
No air Check for air in the supply line.
No current Check that the main switch is in "ON" position.
Fault in temperature
rise (Probable presence
of liquid in the cooling
circuit)
- Disconnect all electrical supply
- Disconnect the pipes that bring water into the press
- Empty the press circuit using jets of compressed air.
ATTENTION! -
When expelling water with compressed air, make sure no
water comes into contact with any of the electrical equipment.
Temperature deviation
of a heating plate of
more than 2°C with
respect to the nominal
value.
Exchange the two connectors in the rear part of the regulating equipment and
check whether the regulator always indicates the same anomalous value.
In this case the fault can clearly be traced to the regulator in question.
If the defect should pass to the other regulator, the fault can be attributed to
the corresponding heating plate (7) or the thermocouple signal wire.
In any case take a temperature reading of the heating plate if there is a
discrepancy (see ROUTINE AND SCHEDULED MAINTENANCE).
In case of faults of this or any other kind, the manufacturer should be informed.
The heating plates (7) and the defective regulators can be repaired or replaced
by the manufacturer.
Electrical faults
If a fault develops in the control/regulatory electronic unit, in the first place the
automatic switches in the regulating unit should be checked.
The automatic switches control output and are accessible from the outside.
Supplementary automatic switches to control command current are located
inside the regulating equipment.