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2
Description
2.1 Theory of operation
The
Loctite
®
Dual Channel Controller
97152
utilizes the latest microprocessor technology to
create a user-friendly control system for workstations in manufacturing environments.
The controller is made up of a micro-controller core, a user interface keypad and graphic LCD
display.
A solenoid valve module and a precision pressure regulator are integrated into the unit; an
external solenoid valve module may be connected as an additional option.
Multipole interfaces allow easy connection to peripheral devices (valves, reservoirs, dispense and
flow monitors or PLC).
The keypad allows the user to easily change dispense time, pressure, and mode of operation
settings. All adjustments and the system status overview are displayed on the screen.
The program of controller 97153 provides various selection directories for controlling peripheral
units to implement a multi-functional dispensing system. For activation of the required peripheral
units, the relevant settings of system and channel menus are activated one after the other on the
digital display. Any peripheral unit that is not required must be deactivated (Off).
The system controls only the activated peripheral units, even if additional deactivated units are
installed. This allows different component combinations to be selected from among the
dispensing system components connected, as appropriate for the specific dispensing task.
Up to 4 different dispense applications with different dispense parameters can be set and stored.
These applications, as stored for a maximum of 4 different parts, can be actuated via the
keyboard or through the primary controller. No adjustments to product pressure in the reservoir
can then be made, or must be made manually.
For statistic process control, the data provided by the on-line flow monitor can be transmitted
from each channel via a standard serial interface.
Optional peripherals are:
– 1 DC servo motor (mainly for dispensing pumps),
– 1 external solenoid valve module 97204,
– up to 2 dispense valves
– up to 2 advancing slides with a pair of end position switches each
– up to 2 electric rotosprays,
– a product reservoir with low level and empty sensors,
– 2 external sensors for on-part detection of product,
– 2 preamplifiers for on-line flow monitoring.
For operation in line manufacturing or other automated workplace environments, the following
messages can be analyzed by a higher ranking controller:
– the
Ready
signal,
– the
Refill
and
Empty
signals from the product reservoir
– as well as all other
Fault
signals as a collective signal.
The individual steps of the automatic dispense cycle can be controlled via the MANUAL
OPERATION menu.
Caution!
All adjustment and setup operations in the PERIPHERALS main menu and in the MANUAL
OPERATION menu must be performed by trained and authorized personnel only!