2. DESCRIPTION
The
RCK-862
plus
is an expandable electronic controller from the Rackcontrol line for application in
commercial and industrial refrigeration compression plants. It can control in low and medium temperature
applications with up to three suction lines and three discharge lines. In addition to control and monitoring, it has two
independent RS-485 communication ports that can be used for remote control via Sitrad software or other equipment
via MODBUS protocol.
The
RCK-862
plus
is capable of controlling pressure or temperature, through its 6 configurable inputs for
sensors and 8 digital inputs for monitoring devices and external drives. Its robust hardware also has eigth control
outputs for compressors or fans, two analog outputs for proportional control and six digital outputs (three relay
outputs and three solid state type) for ON-OFF control of compressors, unloader valves and fans. Its three solid state
relays can be used together with dedicated logic for controlling digital compressors of variable capacity.
The
RCK-862
plus
is a control module that acts alone or together with expansion modules to increase the number
of inputs and outputs in large systems.
The
RCK-862
plus
has advanced control logic to optimize thermal performance and reduce the energy
consumption of the cooling system. The proportional-integral control seeks to minimize the variation in
temperature/pressure of the suction line. The progressive algorithm, which seeks to match the cold demand required
by the plant with the power of the set of compressors, seeking to reduce the number of compressor actuations and
shutdowns. The floating condensation control logic, where the temperature of the external environment is monitored
to reduce the condensation setpoint, consequently reducing the compression ratio of the system and its energy
consumption.
The
RCK-862
plus
has a user-friendly interface through a high-brightness OLED display, six interaction keys and
a control menu that provides the commands most used by the compression center. Simple to operate and configure,
the
RCK-862
plus
is equipped with an internal buzzer (audible warning), key and screens for monitoring alarms
that simplify the process of monitoring and identifying faults in the refrigeration system. There is also a real-time
clock (RTC) that allows you to automate commands and record the times of alarms. The USB connection can be used
to upload and download configuration parameters, as well as to update your firmware.
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