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Technical Information
159 Digital input standby switch
A manual switch can be used to put the cabinet in standby mode. This function can be also triggered by a
Modbus command or a display button. By switching in this mode the cooling is stopped and the curtain is lifted.
The display case is not reacting on any input except leaving standby mode. No software alarms are triggered,
but hardware alarms are still observed. Also all sensor values are still evaluated.
161 Baud rate
This parameter is used to configure the baud rate of Modbus communication. For all devices on one Modbus
line this configuration must be the same.
162 Parity / stop bits
This parameter is used to configure the parity and the number stop bits of Modbus communication. For all
devices on one Modbus line this configuration must be the same.
163
– 168
FREMAR (FREquency Management to Avoid Resonances)
To avoid disturbances by resonance in variable speed applications three forbidden speed bands can be
configured. A band is defended by a lower limit (
163,165,167
) and a upper limit (
164,166,168
).
169
– 174
Night speed of EBM Modbus fan 1 -6
In night operation (curtain closed), the variable speed fans are running at this speed.
175 Number of fin sensors
It is possible to increase the number of fin sensors to optimize the defrost termination by fin temperature
(multiple measurement points) or use a multi evaporator design. By default, the system is working with one fin
sensor. If two fin sensors are selected the second fin sensor is physically replacing the discharge temperature
sensor. A discharge temperature protection cannot be used anymore and is disabled. If three fin sensors are
selected the third fin sensor is physically replacing the suction temperature sensor a EXV / superheat control
cannot be used anymore.
176 Pack One-shot Mode Enabled
By this parameter the pack controller changes its mode of operation to avoid a part load operation (e.g. two
compressors are running constantly and the third is off). In case of a cooling demand all available compressors
are started respecting parameter
87 Pack add capacity delay
. If the demand decreasing the pack controller
will also remove all available compressors at once respecting parameter
86 Pack remove capacity delay
.
Figure 25 Pack One-shot Mode
177 Hotgas-Defrost compressor speed
During a hotgas defrost the compressor is running at the speed setup by this parameter.
178 Hotgas-Defrost compressor startup speed
Compressor speed during defrost startup time (see Figure 26 Hotgas defrost sequence with / without 4way-
Valve switching).
179 Hotgas-Defrost startup duration
Duration of the defrost startup time (see Figure 26 Hotgas defrost sequence with / without 4way-Valve
switching).
