27
INITIAL INSTALLATION
and install the sensor facing the same way as the old one - the brass plate down, the white part to
the top. Press the sensor through the epoxy to the bottom of the pocket. It is very important that
the white part, or the Piezoelectric crystal, does not short out to the pocket bottom or sides.
Check to make sure that the center wire is not above the surface of the block. Fill the sensor
pocket flush or slightly below the surface of the block with epoxy.
You can perform these tests with an ohmmeter - one lead of the meter to the center of the
conductor and the other lead to the block.
Reassemble the machine after the adhesive has set, and reconnect the cable.
Note
: Pre-heating the block or wedge will significantly reduce the curing time of the epoxy.
Position
Sensor Replacement or Adjustment:
If IMPAX will not count parts although the machine is running in green, the problem is related
to the position sensor. The simplest problem is that the cam or flag which passes in front of the
sensor to actuate it, may be damaged or missing. If this part does pass within 1/4" of the sensor
face for the 30mm proximity switch, then the sensor should be adjusted. If the proximity switch
is a 12mm one, it needs to be even closer. A voltmeter must be used to make sure that 10 volts is
applied to the red and black wires of the sensor, and that the white wire switches when metal is
placed in front of the sensor (these wires may be checked on the terminal strip of the circuit
board inside the Satellite Box).
If the sensor is bad, it should be replaced. Align and adjust the new sensor and actuator exactly
as the old one, or refer to the spacing and timing adjustment steps in “Initial Installation -
Position Sensor Installation” at the end of this Section. Even if the sensor is working
electrically, it may be wise to double check the timing adjustment.
Before installing an IMPAX controller system on any manufacturing machine, IMPAX systems
may send a Field Service Engineer to evaluate the site, the machine, and any special customer
requirements. This includes sensor installation, programming preferences, and coordination with
in-plant personnel who may assist in installation.
The following guidelines may help you in preparing for future installations or modifying existing
ones. If in doubt, consult the IMPAX service department.
Of course, all mechanical and electrical work should conform to industry standards and
applicable safety codes.
Содержание 2000
Страница 1: ...2000 Supervisor s Guide ...
Страница 4: ...Specifications Back view of Control Console Satellite Circuit IMPAX Control Console 49 50 51 52 ...
Страница 53: ...DRAWINGS Backview of the Control Console ...
Страница 54: ...Satellite Box Circuitry ...
Страница 55: ...IMPAX 2000 Control Console ...