B&C Technologies EDG Dryer Control (DE, DP, DI Series) - Manual (Page 4)

Introduction
Description
Main functional features
I/O signals to and from the dryer
The EDG is equipped with the following
features :
Six-digit alphanumeric display with high
brightness (messages longer than 6 digits scroll
across the screen)
Keyboard with 16 keys
Buzzer for acoustic signaling
8 opto-isolated digital inputs (on/off)
6 digital relay outputs
1 probe for temperature measure
Data storage in case of power failure
Through the various menus, which can be
accessed by typing in the correct password, the
user can choose from the following options :
Operator interface language
Operation with temperature in °C or °F
Reverse enable/disable
Coin enable/disable.
In addition, it is possible to name programs so
they can give information on the type of fabric
the program is configured for (Sheets, Towels,
etc).
For details on configuration options please turn
to Programming.
The EDG is equipped with a set of digital inputs
and outputs whose function is listed below.
1. Door open
A program will not start if the door is open
during start up.
If the door is accidentally opened while a
program is running, the program will stop and
the display will indicate a diagnostic message.
The program restarts once the door is closed
and start is pressed.
2. Filter door open
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Inputs
A program will not start if the lint door/drawer is
open during start up.
If the lint door/drawer is accidentally opened
while a program is running, the program will
stop and the display will indicate a diagnostic
message.
The program restarts once the door is closed
and start is pressed.
3. Depression Alarm
The program will not start when the pressure
alarm is active. The EDG uses the cabinet sail
switch to determine if the exhaust blower is
operational. The sail switch must be open for a
program to start, and then be pulled closed by
airflow for the program to continue. For this
reason, stops and starts too close together in
time may not work because of fan inertia. If a
program starts and sail switch remains open, an
alarm is generated and the buzzer sounds (see
chapter “Alarms”.
4. Motor overload
If the motors overload(s) trip during program
execution, the program will stop, generating an
alarm with relevant diagnostic on the display
and the buzzer will sound.
5. Coin box 1
In the coin box version, this signal indicates that
a type 1 coin has been deposited (whose value
is configured in the specific field). Not Used.
6. Coin box 2
In the coin box version, this signal indicates that
a type 2 coin has been deposited (whose value
is configured in the specific field). Not Used.
1. Gas control unit reset
Not Used in the USA.
2. Cycle under way
Indicates that a drying cycle is currently under
way. This signal remains even when the
program is interrupted (through the keyboard
or by opening the door).
3. Blower Autoclean
Each time a program starts, compressed air
cleans the blower, preventing lint buildup.
4.
Motor forward
Commands forward direction of the cylinder
motor (reversing models only).
Outputs
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