B&C Technologies DI-325 Industrial - Manual (Page 67)

OPERATING AND PROGRAMMING INSTRUCTIONS
8-36
(6) Gas heater alarm
The input for the error of the gas heater (input 14) is, or has been, in the ‘off’ state for
minimum 3 seconds. This means the gas heater gives an error signal.
(7) Fire suppression
The input for fire suppression (input 15) is, or has been, in the ‘off’ state. This means the
fire suppression contact is activated.
(10) Rotation sensor time-out
While the drum was running, the rotation sensor didn’t go from the ‘on’ to the ‘off’ state
quickly enough. This can mean the drum is jammed or the drum motor isn’t working properly.
(11) No air pressure
The input for the air pressure switch (input 8) is, or has been, in the ‘off’ state. This means
the air pressure isn’t sufficient.
(12) Lint filter door opened
The input to detect if the lint filter door or drawer is closed (input 2) is, or has been, in the
‘off’ state. This means that the lint filter door or drawer has been opened.
(13) Door opened
The input to detect if the door is closed (input 1) has been in the ‘off’ state while it should be
in the ‘on’ state. The controller checks if the door is closed when a program is started and when a
program is running. If, in this case, the door is opened, this message will be displayed.
(14) Air flow sensor error
The input which monitors air flow (input 3) is not detecting the expected signal. When the
machine is started the input should be in the ‘off’ state. After the blower is started the input should
change to the ‘on’ state in the time defined in machine parameter 33. If the input is in the ‘on’ state
when starting up, or does not go to the ‘on’ state in time then no air flow is detected. As this
situation can be dangerous the machine is stopped.
Please note that if a dryer is stopped and then restarted quickly this message can appear.
Because of the momentum of the blower motor air will still be flowing and the switch will stay in
the ‘on’ state, for a short time after the blower motor has been stopped. If the machine is started
again during this period this message will also be given.
Also please note that if the lint filter door or drawer is opened when a program is running
the air flow will change which can also cause the switch to open. In this case an additional ‘air flow
sensor error’ will be given.
(16) Temperature sensor 1 error
The cable of temperature sensor 1 is broken or there is a short circuit. The controller detects
that the sensor is not properly connected.
(17) Temperature sensor 2 error
The cable of temperature sensor 2 is broken or there is a short circuit. The controller detects
that the sensor is not properly connected. This message will only be displayed in case the presence
of a second temperature sensor is set in the machine configuration parameters (see chapter 6.8,
parameter 4). The machine is still able to run in case the 2
nd
sensor is broken, but it cannot run on
automatic drying any more (see chapter 6.4.1, program parameter 1). So, to be able to run the
machine, the sensor should be working or a program with time-based drying should be chosen.