Innotech Micro2000 M2K05

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Application

The Innotech M2K05 Controller is designed to provide complete control

of air conditioning systems for commercial applications, where control

over two zones (eg: Day / Night) is required.

Features

• LED Display of Temperature and Program functions

• Control Station fits standard electrical wall plates

• Two core screened cable simplifies connection between the control

station and controller

• Adjustable Proportional Band, Dead Zone, Compressor Restart Time

and Setpoint Range

• Able to operate as 1 cool, 1 electric heating or as reverse cycle heating

or cooling

• 7 Day 24hr Real Time Clock or Adjustable Timer function

• Programmable Schedules, 4 events per day

• Two Zone (Day / Night) control with option of 1 or 2 temperature

sensors

• Adjustable auto zone change over times

• External A/C fault and Start/Zone change inputs

• All adjustments from the control station

The Clock is not battery backed. Time and Date will need to

be set every time power is cycled if the Time Clock function is

enabled. Schedules and Parameters are saved even if power

is lost.

Specifications

Power Supply

• Voltage: 240VAC ±10% @ 50/60Hz

• Power Consumption: 7VA max

Inputs

• 10kΩ thermistor temperature sensor for air temperature (5°C

to 35°C range)

• Switched contact

Outputs

Relay # 1: Voltage free relay contacts:

Normally Open 16A resistive

6A inductive

Relay # 2, 3, 4: Voltage free relay contacts:

Normally Open 10A resistive

6A inductive

Relay # 5, 6, 7: Voltage free relay contacts:

Normally Open 2A resistive

0.5A inductive

Connection Between Controller and Control Station

• 4 way connection via 3 core plus screen cable

Control Station Terminal Identification

• IN 1 Day Zone Temperature and External Start

• IN 2 Night Zone Temperature and External Start

• GND Common for Inputs and Cable Shield

• +12V Power from Controller

• Comms Comms to Controller

• GND Ground from Controller

Controller Terminal Identification

240 Volt Power connection to Control Unit:

• Earth

• N Neutral supply

• 240V~ Mains 240VAC Supply

Output Relays

• NO Normally open contact

• COM Common contact

Comms Terminals

• +12V Power to Control Station

• Comms Comms from Control Station

• GND Ground to Control Station

Temperature Ratings

• Storage: 0 to 50°C non-condensing

• Operating: 0 to 40°C non-condensing

Models:

M2K05: 3 Speed FAN, 1 COOL, 1 HEAT & 2 Zone Controller,

7 day - 4 Event Time Clock or Timer

DS 9.05

August 2013

M2K05

Micro2000 Controller

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Summary

Product Specifications

Power, Input;Output & Connection Details

Details electrical specifications, inputs, outputs, terminal identification, and connection methods.

Installation, Safety & Approvals

Installation Guidelines & Safety

Covers mounting, wiring, safety warnings, and required qualifications for installation.

Programming Schedules & Clock

Clock and Schedule Setup

Guides on setting the current time, day, and programming daily schedules or auto zone changes.

Detailed Parameter Configuration

Core Control Parameters

Explains essential parameters for setpoints, dead bands, proportional bands, and operational modes.

Wiring Diagrams

System Wiring Configurations

Provides diagrams illustrating sensor, control station, and fault relay connections for different setups.

Safety Precautions

Hazardous Situation Warnings

Lists critical safety precautions regarding electrical terminals and unit handling.

Electrical Connection Diagrams

Electric & Reverse Cycle Wiring

Illustrates wiring for Electric Heat and Reverse Cycle modes, including relay specifications.

The Innotech M2K05 Micro2000 Controller is a versatile device designed for comprehensive control of air conditioning systems in commercial applications, particularly where two zones (e.g., Day/Night) require independent management. This controller integrates a 3-speed fan, 1 cool, 1 heat, and 2-zone control, along with a 7-day, 4-event time clock or timer function.

Function Description:

The M2K05 controller provides precise temperature regulation and scheduling capabilities for HVAC systems. It can operate in various modes, including 1 cool, 1 electric heating, or reverse cycle heating/cooling. The device supports two-zone control (Day/Night) with the flexibility of using either one or two temperature sensors. Its real-time clock allows for programmable schedules with up to four events per day, ensuring optimal comfort and energy efficiency. The controller also features adjustable auto zone changeover times, external A/C fault inputs, and start/zone change inputs for enhanced system integration and fault monitoring.

Important Technical Specifications:

Power Supply: 240VAC ±10% @ 50/60Hz, with a maximum power consumption of 7VA.
Inputs:
- One 10kΩ thermistor temperature sensor for air temperature (5°C to 35°C range).
- Switched contact for external inputs.
- Two multipurpose inputs (UI1 and UI2) for Zone 1 and Zone 2 thermistors (Innotech SENx) and external start/zone change (momentary push button).
Outputs (Voltage-Free Relay Contacts):
- Relay #1 (Fan Low): Normally Open, 16A resistive, 6A inductive.
- Relay #2, 3, 4 (Fan Mid, Fan High, Cool): Normally Open, 10A resistive, 6A inductive.
- Relay #5, 6, 7 (Night Zone, Day Zone, Heat): Normally Open, 2A resistive, 0.5A inductive.
Connection to Control Station: 4-way connection via a 3-core plus screen cable.
Temperature Ratings:
- Storage: 0 to 50°C non-condensing.
- Operating: 0 to 40°C non-condensing.
Approvals: Conforms to electromagnetic emission and immunity requirements according to standards EN55011 (CISPR11) and EN50082 for CE Marking and C-Tick Labelling.

Usage Features:

LED Display: Provides clear indication of temperature and program functions.
Control Station: Designed to fit standard electrical wall plates, simplifying installation.
Simplified Wiring: Uses a two-core screened cable for easy connection between the control station and controller.
Adjustable Parameters: Allows for customization of proportional band, dead zone, compressor restart time, and setpoint range.
Time Clock/Timer Function: Features a 7-day, 24-hour real-time clock or an adjustable timer function. The clock is not battery-backed, so time and date need to be reset after power cycling if the time clock function is enabled. However, schedules and parameters are saved even if power is lost.
Programmable Schedules: Supports up to four events per day for precise control.
Two-Zone Control: Manages Day and Night zones with options for one or two temperature sensors.
Auto Zone Changeover: Adjustable times for automatic zone switching.
External Inputs: Includes external A/C fault and start/zone change inputs.
Control Station Buttons:
- Fan Button: Changes fan speed (indicated by 3 LEDs). Can turn on the fan in Vent Mode when the controller is off.
- Mode Button: Toggles between Auto, Heat, and Cool modes.
- Zone Button: Switches between zones. If "On" is selected in Parameter 11 (Enable Both Zones), both zones can be turned on simultaneously, using the average of both sensors and the Day Setpoint.
- Time Button: Has two selectable modes: Time Clock mode (enables/disables Time Clock, displays current time) and Timer mode (adjustable On/Off timer, displays time until state change).
- On/Off Button: Changes the current state of the controller, overriding Time Clock or Timer settings. In Time Clock mode, it can force the controller off until the next scheduled "On" time or on until the next scheduled "Off" time.
Programming Mode: Accessed by holding the Time button for 5 seconds. Allows selection and adjustment of various parameters (P00 to P16) using the Up/Down buttons. Changes are confirmed by pressing the Time button. To exit and save, hold the Time button for 5 seconds. If changes are not saved, the controller reverts to the last saved settings.

Maintenance Features:

Fault Representation: The controller provides clear fault indications on the Control Station display:
- "HELP": Indicates a communications error between the Controller and Control Station. The controller shuts down after 1 minute.
- "SEN 1 FAIL": Indicates an open circuit on Sensor Input 1. The controller shuts down after 20 seconds, but the fan can still be turned on (Vent Mode).
- "SEN 2 FAIL": Indicates an open circuit on Sensor Input 2. The controller shuts down after 20 seconds, but the fan can still be turned on (Vent Mode).
- "FAIL": Indicates an open circuit on both Sensor Input 1 and 2 simultaneously. This is a generic fault that shuts down the controller and flashes "FAIL" on the display.
Sensor Calibration: Parameters 14 and 15 allow for calibration of Sensor 1 and Sensor 2 temperatures, with an adjustable offset range of ±10°C.
Standby Dead Band (Parameter 16): Allows setting a standby dead band (OFF to 99.0°C). If a value other than "Off" is selected, the controller enters a Standby mode instead of switching off, maintaining temperature with a wider control dead band and cycling the fan at low speed.

Installation Guidelines:

Mount the Micro2000 on a DIN rail in cabinets approved for switchgear or industrial control equipment, in a dry, clean location free of excess vibration.
Maximum terminal cable entry is 1.5mm² wire.
Wiring must comply with INNOTECH connection diagrams and local bylaws.
Connect the 240VAC supply to the correct terminals, observing polarity and ensuring EARTH connection.
Maximum wire length between the control station and controller should not exceed 50 metres.
Avoid running wiring in parallel with high-current conductors.
Installation should only be performed by qualified personnel.

Safety Precautions:

Never touch I/O terminals while power is supplied.
Do not attempt to disassemble the unit.
Provide emergency stop circuits, limit circuits, interlock circuits, and similar safety measures.
Be aware that outputs may remain On or Off due to relay issues; external safety measures are crucial.
Follow Innotech wiring diagrams and installation instructions.