ECKELMANN VS 3015 CT, Инструкция по эксплуатации, Страница: 100 / 219

Firmware V1.41 V1 08.11.2022 100/219
•
•
•
•
•
It can be established with the alarm whether
the controller is correctly configured for the high pressure regulation. For example, the max. input signal of
the HP valve has been configured incorrectly.
there is any basic problem in the system. For example: the HP valve in the system has a defect.
The alarm delay is reset
during fast unload (active digital input 16)
during standstill of all compressors
during a restart (de-energised state) of the controller
Configuration of the monitoring
Parameter Description Input Default Dim. Menu
Max HP Con.Err. Maximum permissible control error in the
HP circuit. The function is deactivated with
input of "--". 0...30, -- 5 bar 3-2-2-2
Del. MaxHP C.Er Delay time, after which a fault message is
generated in the case of exceeding the
maximum permissible control error in the
HP circuit 0...100 15 min 3-2-2-2
The message has no influence on the control and regulation processes!
5.12.5 Monitoring of the Medium Pressure
5.12.5.1 Medium Pressure Monitoring Too High
The parameters required for the monitoring of the medium pressure can be configured using the menu 3-3. The
parameter
MP Off Comp xxx sets the maximum permissible medium pressure. The message MP too high is
output if the pressure exceeds the specified limit value. The parameter Nr.Comp.MP-Al x defines the maximum
number of compressors that may be loaded in the event of any medium pressure fault. In the event of
exceeding
MP Off Comp , there is an immediate step down to the specified number of compressors (no return).
If the parameter Nr.Comp.MP-Al is set to "–", only a fault signal is generated without switching off the
compressor. The MP too high signal is sent. The parameter MD EIN xxx b specifies the pressure for which the
compressor disabled by MP Off Comp is enabled again and the fault signal MP too high is reset. Compressor
activation after previous compressor disable due to an MP fault is performed after expiry of the configured lead
times.
5.12.5.2 Medium Pressure Monitoring Too Low
The system medium pressure should be in a specific range during normal operation of the system. In addition
to the medium pressure too high monitoring, the medium pressure is also monitored for undershooting a lower
limit value:
In the event of undershooting MP too low , the signal MP too low is output after expiry of a configurable signal
delay time using the parameter Del. HP too l. (menu 3-3). The signal is transmitted according to priority
preselection. This signal is not output in the case of measuring circuit errors of the MP transmitter. The MP too
low signal has no effects on the control and regulation processes.
5.12.5.3 Monitoring of the MP Control Error
If the medium pressure is different for longer than the configurable delay time minutes using the setpoint Del.
MaxMP C.Er by more than the configurable pressure setpoint using the setpoint MP dif. , the controller sends
the message Deviation MP (default priority 2).