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Control Unit For Middle & Low Temperature Refrigerating Machines
- Automatic defrust;
- Threetemperature sensors;
- Services of voltage relay and phase monitoring relay (protection against voltage of pooor quality in the mains) are provided
- Magnetic starter power contacts switch monitoring
- Can operate from a three phase or a single phase mains input.
The MCK - 301 is a microporcessor based intellignet programmable deviceprovided with several admission levels. All parameters are monitored and adjusted by a front-panel digital display and buttons. the unit is designed for three-phase refrigeration machines control.
The MCK-301 is the universla technology controller. it can be reprogrammed to supervise different technology processes, on request.
The MCK-301 is adapted to control freezers, refrigerating counters, monoblocs and other refrigerating, shop and industrial equipments.
Features
- User interface is available that provides the uit status monitoring and the unit operation programming
- A big menu is provided allowing to program 60 operation parameters with a high accuracy
- Thermenu is easy to use and to change
- Operation, setting and programming are optimised and simplified;
- There are three different modes of operation such as the thermoostar conditions, the refrigeration conditions and the alarm conditions;
- Holds the user-set chamber temperature, starts the defrost and the condensate drip off in the thermostat mode;
- The fan control type setting is provided
- The compressor start, ON-time and stop can be set form the menu parameters;
- The defrost type, the defrost stop type, the defrost start mode of operation and different between-defrost delay count methods are set by user;
- A quick refrigeration of the chamber filled with a new (warm) product for user-set time;
- A defrost delay is specified by user
- Defrost in refrigeration conditions is provided
- Fault states control system is provided;
- Alarm conditions ar eon when faults states control system trips;
- Sophisticated decision-making alogrithm for each specific case in all modes op operation;
- Independent indication for each modoe of operation as well as compressor and fan cut-in indication;
- Separate decision making logic for each type of fault;
- Freezer and evaporator temperature monitoring;
- The mains parameters (RMS phase or line voltage, phase imbalance, correct phase sequence and external magnetic starter power contacts position before and after compressor cut in) monitoring is provided
- Starter terminals voltage monitoring is provided;
- Protective compressor and fan stop on unallowable mains parameters and the automatic reset on voltage parameters regeneration with reset delay selected by user;
- Three control levels are available for user;
- A keyboard lockage/unlockage option is provided
- Operation levels can be selected as user lever and adjuster level;
- A digital indication of all faults codesis provided;
- user can preset the desirble conditions the unit will operate when power is applied: it can be thermostat conditions or 30 sec.-delayed defrost after the device has started;
- Automatic hange-over to thermostat conditions after refrigeration/defrost conditions have been over.
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