18
User
Guide RS8GR602 © Danfoss 2016-10
AK-CT
450A
Coordinated defrost via
data communication
Coordinated defrost via
cable connections
The following controllers can be connected
up in this way:
EKC 204A, AK-CC 210, AK-CC 250,
AK-CC 450, AK-CC 550
AK-CT 550A, AK-CT 450A,
Refrigeration is resumed when all
controllers have “released” the signal for
defrost.
The setting of controllers to coordinate
their defrosting takes place in the
gateway/system manager.
Refrigeration is resumed when all
controllers have “released” the signal for
defrost.
Max. 10 pcs.
Extra connection/terminal strip
There are 3 holes on the base in which
a terminal strip (type Wago 862-8593)
can be mounted.
There are holes for 2 terminal strips.
Stripping wire
The following demands for stripping, so the insulation does not
enter the spring clip.
ID module AK-CT 450A
This module contains a code which, together
with the others, will enable regulation using
an solenoid valve.
The installation and removal of the module
must always
be
performed while the appliance is voltage-free.
When the module is inserted in the plug, the controller can be set.
The settings will be saved in both the controller and the module.
A module with settings will
always
overwrite the settings in
the controller. An overwrite will be finished 3 seconds after the
controller is turned on.
The module can be removed from the controller for a short period
of time in order to transfer the settings to another, corresponding
controller. Remember to disconnect the voltage to ensure the
system is voltage-free.
If the controller registers a missing module, an alarm will be
issued. This alarm will be regularly repeated until the module is
inserted in the controller again.
If the controller is without a module for a longer period of time
(several days), the regulation will stop and all outputs are reset.
If it becomes necessary to erase all settings from the module, it
can be inserted into the controller and setting P61 can then be ac-
tivated. Then remove the module without restarting the controller.
A factory-new or “empty” module can be used to retrieve settings
based on a corresponding controller.
Insert the module into the controller from which the settings are
to be retrieved.
Turn on voltage.
Wait 3 seconds. Turn off again.
The module now contains all settings — including the Modbus
address.
Remember to change the address when the module has been
inserted into the receiving apparatus.
