KGL Operating Manual – VS 3010 BS
2018-07-02
/
75 178
The toggle setpoint is performed jointly for the two temperature ranges Z1 and Z2.
4.10 Ambient data for the setpoint shift
The factors used for the setpoint shift (menu 3-1),
room temperature (shift of t parameter
)
0,
Room temp.
temperature outside (shift of the condenser temperature t , parameter
)
c
outdoor temp.
humidity (shift of t , parameter
)
0
Humidity
can either be provided using the sensors connected to the pack controller or received via the CAN bus from
another pack controller.
It can be set using the parameters
,
and
whether sensors directly connected
Room temp. outdoor temp.
Hum.
to the controller are present. If any of these parameters is set to NO, the additional parameter
Node-No Env.dat
is shown on the operating screen. Here, as required, the CAN bus address (node number) of the pack
controller can be entered, from which the desired ambient data will be drawn, e.g. “1" for the CAN bus address
“101".
If no ambient data should be received via the CAN bus, the parameter
must be set
Node-No Env.dat
to "–".
4.11 Disabling of refrigeration points
In the event of any fault of the compressor pack. the pack controller can send a consumer disable via the CAN
bus to all associated Z1/Z2 consumers. Associated consumers are case controllers where the CAN bus
address (node number) and the association to the Z1 or Z2 circuit of the pack controller have been
programmed in the configuration of the controller. The consumer disable is sent to all associated consumers if
no compressor or no refrigeration capacity is available.
Possible causes of failure are
Tripping of the HP cutout
Tripping of all motor overload cutouts Z1/Z2
Tripping of all low oil pressure cutouts Z1/Z2
Manual shutdown of all compressors Z1/Z2
No disabling of refrigeration points is performed for low suction gas pressure or tripping of the LP cutout.
Signals are also provided via the relay outputs 9 and 10 (terminals 1/2, 3/4) for the enable of the *foreign"
consumers so that external controllers can be integrated. This function is
available if the
only
base load rotation of speed controlled compressors and cascade controllers are
.
deactivated
The consumer enable is performed for both temperature ranges.
