Instruction Sheet 46-75
Page 10
2300 Retrofit
PARENT MACHINE INTERLOCK 1NSTALLATI:ON
Description of Parent Machine Interlock
A Parent Machine Interlock performs two basic functions: it
provides a way for an operator to tell when the adhesive in the
tank has reached application temperature (an indicator light turns
off) and, once this temperature is reached, it energizes a contact
which may be used to operate a nolrmally open or a normally closed
switch on a parent machine. If, for example, a system user wants
to ensure that a packaging line does not run unless the adhesive is
fully melted, a PM1 can be used to achieve this purpose.
Installation of PM1
1. Disconnect and lock out input electrical power.
WARNING: Disconnect and lock out external power
to the applicator beforle opening the electrical
enclosure. The input terminal board and the input
terminals on the main circuit breaker are still electri-
cally energized if external power is not disconnected,
even though the circuit breaker on the front of the
applicator is turned off.
WARNING: DO NOT touch the black heat sinks ex-
tending from the green circuit board when power to
the unit is on. They are electrically energized and
therefore present a shock hazard.
2. Remove the electrical control cabinet enclosure by unscrewing
the captive screw on top of the cabinet.
3. Locate the two-part terminal block at the bottom of the PM1 cir-
cuit board (see Figure 8). While holding on to the receptacle
part of this terminal block, carefully pull on the plug part of
the terminal block until the two parts separate.
4. To obtain working room, unplug the white plugs along the top
of the main circuit board (there will be two of these on a Model
2302, four on a 2304, and five on a 2305).
5. Remove the two screws that secure the main circuit board to
the base of the applicator.
6. Tilt the top part of the circuit board away from the applicator
until it inclines at approximately a forty-five degree angle. DO
Issued l/89
ONORDSON CORPORATION 1968
All Rights Reserved
Pub. No. 108 428A
To Next Page
Loading...