Pilot Air SILENT K17SI, Instruction And Maintenance Manual

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14 | P a g e Silent Series Rev 01 03-2020
6.Engineering
4) CONTROL AND INSTRUMENT PANEL
The control panel on the COMPACT [fig.11] and SILENT1 [fig.10] models comprises:
40.15 - Direct air outlet.
40.16 - Outlet for air controlled by the pressure reducer for direct supply to pneumatic tools
40.17 - Pressure control
40.18 - Pressure gauge for controlled pressure
40.19 - Pressure gauge for direct pressure
40.20 - Pressure switch cover
40.20.1 - START-STOP switch
40.20.2 - Reset push button
40.20.3 - Fastening screw on pressure switch cover, to enable direct access to the motor thermostat
40.20.4 - Condensate separator filter on air output circuit upstream of pressure control (SILENT1)
40.20.8 - Condensate drainage valve (SILENT1)
40.20.6 - Condensate receiver vessel
40.21 - Pressure switch cover anchor plate
N.B. To take the pressure switch cover off, backoff the fastening screws and remove the plate.
The control panel on the SILENT2 and SILENT4 models has a polycarbonate membrane cover
and incorporates an electronic circuit board with the “ON - OFF” switches and a series of LEDs,
which constitute an auto-
diagnostic system that supplies the compressor’s operating status in
real-time [fig.14].
Captions fig.14
40 Control panel
40.0 - Polycarbonate membrane keypad
40.1 - Display diagram
40.2 - Hour meter
40.3 - Pressure gauge to measure line air pressure
40.4 -
‘Reset motor thermal cutout status indicator: when, following an overload, the motor thermal
cutout is triggered, the machine stops and the red LED switches on to indicate the fault.
40.5 -
‘Motor turning in wrong direction’ status indicator: at the request of the customer, a phase
sequence relay can be installed that is triggered and prevents the machine from starting if the motor
turns in the wrong direction. The fault is signalled by the dedicated red LED.
40.6 ‘Thermal alarm’ status indicator: when the temperature inside the cabinet exceeds the threshold
value the thermostat is triggered and stops the machine and the relative red LED switches on.
40.7 -
‘Electric fan on’ status indicator: this indicates that the fans have been switched on to vent the hot
air
40.8 -
‘Motor running’ status indicator: this indicates correct motor operation.
40.9 -
‘Voltage on’ status indicator: this indicates that the compressor is energised and stays on even
when the machine is not running.
40.10 - Red stop pushbutton
40.11 - Green start pushbutton
40.12 - Control and auto-diagnostic circuit board
40.13 - Circuit board fastening screws
40.14 - Adhesive wiring diagram [fig.16]