Skov DOL 834 CE, Техническое руководство пользователя

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DOL 834 CE
Technical User Guide 29
6.6 Emergency control
6.6.1 Emergency opening
Emergency opening is a standard function in the controller . The controller will activate the ventilation system in
case of a relevant alarm, see the levels in section
Control parameters [
}
52] .
Activated by CE
Pressure low alarm
Yes
Pressure high alarm
Yes
6.7 Equipment status
When connecting monitoring equipment such as e.g. a current sensor for the individual components of the sys-
tem (stepless and MultiStep fans), it is possible to get an alarm which can indicate the possible fault type.
There are 3 alarm types:
Low alarm Possible equipment failure. The equipment may be disconnected by mistake.
Alarm due to missing current consumption. For example, MultiStep/stepless may
be activated and the power consumption too low, if the emergency stop at the fan
is activated.
High alarm The equipment shows signs of wear.
Alarm due to excessive current consumption.
ON alarm The equipment is active, but should not be in relation to the controller's regulation.
Alarming due to current consumption, which should not be there. For example,
MultiStep/stepless may be activated and the power consumption too high, if there
is an emerging defect in the fan.
Alarms are only triggered when a limit has been exceeded for 5 minutes.
The alarms are set up to match the connected monitoring equipment. This is done in the menu
Alarm settings |
Equipment status.
Select the alarm type
Hard
,
Soft
or
Disabled
.
Set voltage ranges for Low alarm , High alarm and ON alarm .
First read the current consumption during normal operation to
get an indication of the voltage ranges.