ECKELMANN VS 3015 C, Инструкция по эксплуатации

Страница: 27 / 185

14.01.2019 27/185
The following settings must be made under 3 Setpoints / 6 Base Load for the above example configuration:
BaseLoadRot.FC = N In the case of a configuration with an FC compressor with integrated FC, the frequency
converter cannot be switched. The base load rotation according to the above time interval is only performed for
the fixed-speed compressors.
Speed increase for purpose of oil lubrication
In order to guarantee the oil lubrication of a speed-controlled compressor, the compressor speed can be
cyclically increased if the compressor is continuously operated at minimum speed due to low refrigeration
capacity.
The maximum permitted run time at low speed is specified with the parameter RunTimeSlwSpeed . The speed
is increased if this time is exceeded. The parameter Freq.-shift[Hz] determines the frequency to which the
compressor speed is increased. The duration of the speed increase is specified with the parameter t Freq.-
shift (menu 3-2-2-1).
The "Speed Increase" function is only active if values not equal to "--" have been specified for MaxFreq.FC[Hz],
MinFreq.FC[Hz] (menu 3-2-2-1) and Freq.-shift[Hz] and only the FC compressor is activated.
5.4.4 Setpoint shift
An optimally calculated setpoint for the operation can result in reduction of the energy costs. The determination
of the t
0
setpoint (setpoint shift) for the low-pressure control can be performed using the following operations in
menu 3-2-1-2:
• room temperature sensor
• demand-dependent using case controller (consumer)
• external signal via CAN bus
• external signal via analogue input
• a humidity sensor
Setpoint shift via room temperature / jump to end of the metadata
The determination of the t
0
setpoint is performed depending on the room temperature (t
0
setpoint shift via room
temperature, see menu 3-2-1-2). The room temperature is provided here either by a Pt1000 temperature
sensor that is connected directly to the analogue input (terminals 5/6/7/8) of the pack controller or provided via
the CAN bus from another pack controller in the E*LDS system, see chapter
Ambient data for the setpoint
switching .
If the room temperature sensor or the humidity sensor for the setpoint shift is not connected to the
controller, these can be made available as required from another controller, see chapter
Ambient data
for the setpoint switching .
