B&C Technologies M720 Dryer Control (DE, DP, DI Series) - Manual (Page 42)

Chapter 5
Alarms
If the machine detects an alarm or a warning a message will be displayed on the 2 nd line of the
overview screen. In some cases, the numeric display above the graphical display will also blink
with the alarm number.
Alarms can be reset with the S TART key. Only one alarm is reset at a time so if multiple alarms
are active the start key must be pressed once for each alarm. The alarms are the messages with
number 1 to 24.
Warnings can also be reset with the start key but will also automatically reset if the cause is solved.
The warnings are the messages with number 25 through 30.
Status messages often do not require action. If a status message requires action this is described in
the explanation of the message. The status messages are the messages with number 31 until 40.
All alarms, warnings and messages which occurred can be checked in the alarm history screen (see
section 4.8 on page 35).
The following alarms, warnings and messages can be displayed:
• Emergency stop
The input for the emergency stop and/or safety switches (input 10) is, or has been, in the off
state. This means the emergency stop has been pressed or one of the safety switches has been
activated.
• Overload protection
The input for the overload contacts (input 4) is, or has been, in the off state. This means one
of the overload protections is activated.
• Error frequency inverter
The input for the error of the inverter (input 11) is, or has been, in the off state. This means
that (one of) the frequency inverter(s) gives an error signal.
• Error inverter synchronization
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