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Nigos MC-2000 User Manual

Automatic control unit
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EQUIPMENT FOR MEASUREMENT&CONTROL AND DRYERS
B. Nikolica-Serjoze 12, 18000 Nis, Serbia; Phone/Fax:+38118 211-212, 217-468; office@nigos.rs; www.nigos.rs

1. MC-2000 MAIN CHARACTERISTICS

Automatic control unit MC-2000 is a device intended for drying process control in conventional (steam) and dehumidifying dryers. Controller
provides optimum conditions in the dryer through air temperature and humidity control.
Controller MC-2000 is delivered pre-connected in the power electric panel (KRO). User connects equipment in the kiln to appropriate clamps
in the power electric panel. MC-2000 receives information about air temperature and equilibrium moisture content (EMC) from 2 measuring
points and wood moisture content (MC) from 8 points from the measurement module MKM-08 via communication line. MKM-08 receives
these data from 2 measurement boxes DS-04t, transforms them and then transfers the data to MC-2000 controller. Controller controls the
drying process based on these data. It can operate in automatic or semi-automatic mode, depending on settings made by user. When in
automatic control mode, MC-2000 follows the chosen drying regime and achieves optimal drying conditions in the kiln automatically. In
semiautomatic control mode, user can set desired setpoints for air temperature and humidity, based on the personal experience, and the unit
only maintains those values inside the kiln at the desired point. The unit can be connected to a PC, which enables control of drying process
from distance (from the office or suitable operating room). Additional capability of the MC-2000 controller is manual control of the drying
process. User can use buttons, placed in the right part of MC-2000 labeled with "RELAY OUTPUTS", for manual control of relay outputs.
When manual control is active the controller only displays the measured values. In all other cases, the MC-2000 controls relay outputs
automatically. All output adjustments are built-in, so the user has no influence on their operation during drying process. Most irregular
situations that may occur are registered and resolved within the controller's program options. User intervention is required in certain situations
that cannot be resolved by controller, or in case of unknown conditions.
Main characteristics
Power supply
Number of digital inputs
Number of analogue inputs
Number of outputs
Communication lines
Displays
Operating conditions
Storage
Dimensions (W x H x D)
Weight
Outputs
Number of outputs
Relay outputs
Characteristics
Purpose and number of outputs
Number of outputs
Optocapler outputs
Purpose and number of outputs
Communication
Communication standard
Digital
Protocol
Automatic control unit MC-2000 (version 5.4.6)
USER'S MANUAL
for automatic control unit MC-2000
MC-2000 TECHNICAL SPECIFICATION
230Vac; 50Hz; 300mA
4
1 (Pt1000; T: - 25  160
9
2
LCD with 16 rows x 40 characters
T: 0  50
T: - 40  85
(470 x 200 x 110) mm
3200g
9
Common contact; 8A / 250 Vac, , uninterrupted load 3A max
2 outputs for temperature control (heating valves))
2 outputs for fans operation and direction control
2 outputs for humidity control (servo-controlled flaps)
1 output for spraying
1 output for compressor
1 output for alarm
3
2 isolated digital outputs for frequency inverter starting
1 analogue output for frequency inverter control
RS-485
S - NIGOS
0
C)
C; RH: 5  90%
0
C; RH: 5  90%
0
1

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Summary of Contents for Nigos MC-2000

  • Page 1: Mc-2000 Main Characteristics

    (from the office or suitable operating room). Additional capability of the MC-2000 controller is manual control of the drying process. User can use buttons, placed in the right part of MC-2000 labeled with “RELAY OUTPUTS”, for manual control of relay outputs.

  • Page 2: Installation

    2.1. CONNECTING DIAGRAM MC-2000 is a controller primarily intended for drying control in the kiln that is part of system with large number of dryers. It is very common for these systems that control and surveillance equipment for all dryers is placed in one room. Actual dryer, which is controlled by a certain controller placed in the operating room, can be significantly distanced from there (up to 300 m).

  • Page 3: Mc-2000 Connection

    Picture 2.2. MC-2000 clamps layout Controller MC-2000 is not intended for "stand alone" operation like model MC-600 or MC-502R, but is instead delivered as an integrated part of switch board. It comes already wired to clamps in the switch board. All cables are connected via 3-pol and 6-pol clamps labeled with numbers 1 to 9 and connected to appropriate clamps of MC-2000.

  • Page 4: Mc-2000, Mkm-08 And Ds-04T Interconnection

    For standard MC-2000 configuration with 8 wood MC probes, settings should be as shown on the picture below. Important note is that here is shown connection to controller’s clamps and not to switch board clamps, but corresponding clamps must be used in both situations.

  • Page 5: Connection Of Temperature, Emc And 8-Points Mc Measurement Set

    2.4. CONNECTION OF TEMPERATURE, EMC AND 8-POINTS MC MEASUREMENT SET In the standard configuration, measuring set for temperature, EMC and 8- points wood MC is included with MC-2000 controller. This measuring set consists of one MKM-08 box, two boxes DS-04t, probes, sensors and FEP/SILICON 2x0.75mm...

  • Page 6: Operation

    EQUIPMENT FOR MEASUREMENT&CONTROL AND DRYERS B. Nikolica-Serjoze 12, 18000 Nis, Serbia; Phone/Fax:+38118 211-212, 217-468; office@nigos.rs; www.nigos.rs 3. OPERATION 3.1. MC-2000 FRONT PANEL LAYOUT MC-2000 front panel includes: In section PROGRAM & CONTROL: One 16-rows x 40-characters LCD display (5 different languages supported)

  • Page 7: Temperature, Emc And Wood Mc Display

    EQUIPMENT FOR MEASUREMENT&CONTROL AND DRYERS B. Nikolica-Serjoze 12, 18000 Nis, Serbia; Phone/Fax:+38118 211-212, 217-468; office@nigos.rs; www.nigos.rs 3.1.2. Temperature, EMC and wood MC display Right section of LCD display always show currently measured temperature (Temp), equilibrium moisture content (EMC) and average wood moisture content (MC) in the drying chamber. Below is a section where actual MC value from each wood MC probes is displayed.

  • Page 8: Relay Outputs" Front Panel Section

    EQUIPMENT FOR MEASUREMENT&CONTROL AND DRYERS B. Nikolica-Serjoze 12, 18000 Nis, Serbia; Phone/Fax:+38118 211-212, 217-468; office@nigos.rs; www.nigos.rs 3.2. "RELAY OUTPUTS" FRONT PANEL SECTION Group of buttons and diodes in "RELAY OUTPUTS" section of the controller are used for manual control of kilns equipment, as well as indication of their state.

  • Page 9: Signaling Led Diodes

    EQUIPMENT FOR MEASUREMENT&CONTROL AND DRYERS B. Nikolica-Serjoze 12, 18000 Nis, Serbia; Phone/Fax:+38118 211-212, 217-468; office@nigos.rs; www.nigos.rs 3.2.2. Signaling LED diodes There are 8 LEDs which indicate controller’s states during operation. - flashing of diode WARNING (!) indicates the presence of some warning situations...

  • Page 10: Option: Drying Parameters

    EQUIPMENT FOR MEASUREMENT&CONTROL AND DRYERS B. Nikolica-Serjoze 12, 18000 Nis, Serbia; Phone/Fax:+38118 211-212, 217-468; office@nigos.rs; www.nigos.rs 3.3.1. Option: Drying parameters Drying param This option is used for drying parameters setting. Buttons are used for parameter OPERATING MODE auto scrolling (display is now as shown on the picture), pressing the button...

  • Page 11: Parameter: Thickness/Mm

    NIGOS - elektronik do not accept responsibility for any faults on the timber (bent, crack, twist, etc...) or any accidental situation during drying process caused by either operator's negligence or disregarding process, even when the manufacturer's pre-defined drying regime is used.

  • Page 12: Parameter: Heat Time/H

    EQUIPMENT FOR MEASUREMENT&CONTROL AND DRYERS B. Nikolica-Serjoze 12, 18000 Nis, Serbia; Phone/Fax:+38118 211-212, 217-468; office@nigos.rs; www.nigos.rs 3.3.1.5. Parameter: HEAT TIME/h Drying of certain wood species (especially certain exotic species and hard woods) require core heating, i.e. it is required to equal wood core temperature with surface temperature.

  • Page 13: Option: Control

    EQUIPMENT FOR MEASUREMENT&CONTROL AND DRYERS B. Nikolica-Serjoze 12, 18000 Nis, Serbia; Phone/Fax:+38118 211-212, 217-468; office@nigos.rs; www.nigos.rs Control 3.3.3. Option: LED displays always show average value for temperature and EMC. Option Control gives Control overview of current measurement values for all temperature and EMC probes and control inputs. Each...

  • Page 14: Option: Setup

    EQUIPMENT FOR MEASUREMENT&CONTROL AND DRYERS B. Nikolica-Serjoze 12, 18000 Nis, Serbia; Phone/Fax:+38118 211-212, 217-468; office@nigos.rs; www.nigos.rs 3.3.6. Option: SETUP pristup sa šifrom slobodan pristup System parameters of drying system Spraying parameters of spraying system Compressor Compressor parameters of compressor S E T U P...

  • Page 15: Operating Modes

    (and sets conditioning parameters). MC-2000 will control heating valves and drying flaps on his own, so alarm situations may occur, and if does, user should register them and if necessary make interventions according to instructions given in Chapter 3.6.

  • Page 16: Drying Process Start Up

    EQUIPMENT FOR MEASUREMENT&CONTROL AND DRYERS B. Nikolica-Serjoze 12, 18000 Nis, Serbia; Phone/Fax:+38118 211-212, 217-468; office@nigos.rs; www.nigos.rs 3.5. DRYING PROCESS START UP When all required parameters for drying process are set, system can be started by pressing the button . After this, all parameters are displayed above the question Start dryer ?. Default value is always no .
  • Page 17 EQUIPMENT FOR MEASUREMENT&CONTROL AND DRYERS B. Nikolica-Serjoze 12, 18000 Nis, Serbia; Phone/Fax:+38118 211-212, 217-468; office@nigos.rs; www.nigos.rs Table 3.6. List of possible warning and alarm messages MESSAGE DESCRIPTION MESSAGE TYPE AND RECOMMENDED ACTIONS fan failure? Warning There is a problem (or problems) in functioning of one or more fans. Activities of fans are always checked at start of drying process.

  • Page 18: Additional Adjustments

    3.9. ADDITIONAL ADJUSTMENTS Controller MC-2000 has a number of functions that provide some additional adjustment. Due to possible irregular operation of the controller these functions are hidden, and regular user cannot access them, but only experience users and authorized personal. Access to this advanced access level is possible after a correct code is entered in the Access option.

  • Page 19: Option: Regimes

    EQUIPMENT FOR MEASUREMENT&CONTROL AND DRYERS B. Nikolica-Serjoze 12, 18000 Nis, Serbia; Phone/Fax:+38118 211-212, 217-468; office@nigos.rs; www.nigos.rs 3.9.2. Option: REGIMES Option REGIMES becomes visible when the controller is unlocked (correct code is entered in option Access level). This option defines regimes used in automatic operation mode for appropriate wood specie. Total of 20 regimes can be defined, where first 12 regimes are pre-defined by manufacturer and can not be changed, while remaining 8 are free for change according to user's needs.

  • Page 20: Option: Setup

    EQUIPMENT FOR MEASUREMENT&CONTROL AND DRYERS B. Nikolica-Serjoze 12, 18000 Nis, Serbia; Phone/Fax:+38118 211-212, 217-468; office@nigos.rs; www.nigos.rs 3.9.3. Option: SETUP Ovo je stavka za razna podešavanja na automatu. Ovo je podmeni iz kojeg se bira stavka koju treba podesiti. Nakon otključavanja automata na korisničkom nivou (pristup sa šifrom) su vidljive sledeće stavke:...

  • Page 21: Option: Out Spraying

    MC-2000 controller can operate both conventional and dehumidifying dryers. One same relay output is used for both types of dryers but it has different functions depending on the type of dryer and installed equipment.

  • Page 22: Option: Time/Date

    It is let to customer to use this option at his own decision. We recommend extra care when this option is used! NIGOS-elektronik do not suggest use of this option while it is still in development phase! NIGOS-elektronik do not take any responsibility for any damage or unwanted faults (bents, cracks, warps, etc.) which may occur on timber due to use of oscillation...

  • Page 23: Operating Principles (Drying Principle)

    EQUIPMENT FOR MEASUREMENT&CONTROL AND DRYERS B. Nikolica-Serjoze 12, 18000 Nis, Serbia; Phone/Fax:+38118 211-212, 217-468; office@nigos.rs; www.nigos.rs 4. OPERATING PRINCIPLES (DRYING PRINCIPLE) At the start of each process it is required to set parameters relevant to that process. For conventional drying user must set: MENU>Access>Access code (2000); MENU>Kiln type>conv.

  • Page 24: Phase: Drying

    EQUIPMENT FOR MEASUREMENT&CONTROL AND DRYERS B. Nikolica-Serjoze 12, 18000 Nis, Serbia; Phone/Fax:+38118 211-212, 217-468; office@nigos.rs; www.nigos.rs 4.1.4. PHASE: drying In this phase controller starts to follow selected drying regime. This phase lasts until average wood MC drop to the value set in parameter Drying param>...

  • Page 25: Phase: Cooling

    4.3. POWER FAILURE DURING DRYING PROCESS If power is lost and then restored, while the drying process is running in automatic mode, MC-2000 performs measuring of wood moisture content, calculates average MC and then determines temperature and EMC setpoints. After that, the unit determines proper point for resuming the process, and continues it.

  • Page 26: Drying Regime

    5. DRYING REGIME As mentioned in chapter 1, automatic control unit MC-2000 has 60 drying regimes, all are factory pre-defined but user can change any of them according to his own needs. Here is given an example of how drying regime should be defined. On the next page, there is a blank table which user can copy and make regimes on his own.

  • Page 27: User's Drying Regime

    EQUIPMENT FOR MEASUREMENT&CONTROL AND DRYERS B. Nikolica-Serjoze 12, 18000 Nis, Serbia; Phone/Fax:+38118 211-212, 217-468; office@nigos.rs; www.nigos.rs 5.1. USER’S DRYING REGIME Regime number: Heating temperature ramp rate: °C / h Regime type: Segment Kond Automatic control unit MC-2000 (version 5.4.6)

  • Page 28: Table Of Predefined Drying Regimes

    EQUIPMENT FOR MEASUREMENT&CONTROL AND DRYERS B. Nikolica-Serjoze 12, 18000 Nis, Serbia; Phone/Fax:+38118 211-212, 217-468; office@nigos.rs; www.nigos.rs 5.2. TABLE OF PREDEFINED DRYING REGIMES DRYING CONDITIONING Heat Temp Temp Temp Time Temp Type ramp (°C) 60% MC 30% MC 9% MC (°C/h)
  • Page 29 EQUIPMENT FOR MEASUREMENT&CONTROL AND DRYERS B. Nikolica-Serjoze 12, 18000 Nis, Serbia; Phone/Fax:+38118 211-212, 217-468; office@nigos.rs; www.nigos.rs DEDACATED REGIMES Drying Conditioning Temp Temp Temp Time Temp (°C) 60% MC 30% MC 9% MC 35,0 18,0 38,0 14,0 58,0 55,0 42,0 17,0...

  • Page 30: Table Of Contents

    EQUIPMENT FOR MEASUREMENT&CONTROL AND DRYERS B. Nikolica-Serjoze 12, 18000 Nis, Serbia; Phone/Fax:+38118 211-212, 217-468; office@nigos.rs; www.nigos.rs TABLE OF CONTENTS: 1. MC-2000 MAIN CHARACTERISTICS ....................................1 2. INSTALLATION ..........................................2 2.1. CONNECTING DIAGRAM ......................................2 2.2. MC-2000 CONNECTION ......................................3 2.3.

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