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fisair DFRA Series Handling And Control Manual

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HANDLING AND CONTROL MANUAL
DFRA SERIES
MMCSA-EN-19-1
In compliance with the European Union regulations on the Safety of Machines,
you must read these instructions carefully before installing the equipment.
FISAIR S.L. C/Uranio, 20; PoI. Ind. Aimayr, 28330 San Martín de la Vega (Madrid) España.
Tel: (+34) 91 692 15 14 Fax: (+34) 91 691 64 56 | info@fisair.com| fisair.com

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  • Page 1 FISAIR S.L. C/Uranio, 20; PoI. Ind. Aimayr, 28330 San Martín de la Vega (Madrid) España. Tel: (+34) 91 692 15 14 Fax: (+34) 91 691 64 56 | info@fisair.com| fisair.com...
  • Page 2 DFRA Series Handling and Control Manual | 2...

  • Page 3: Table Of Contents

    DFRA Series Handling and Control Manual | 3 Contents Introduction..................4 DFRA operating instructions ............... 5 Control panel and navigation keyboard of the PLR....... 7 Modes of operation ................8 4.1 Manual mode ..................... 8 4.2 Automatic mode ..................8 4.3 Control of additional batteries ..............

  • Page 4: Introduction

    DFRA Series Handling and Control Manual | 4 1. Introduction. The FISAIR DFRA series dehumidifiers have moving operating parts, such as two fan motors (supply and reactivation) and a gear motor driving the desiccant wheel; and variable static operating parts, such as air heaters/coolers, filters and flow control devices.

  • Page 5: Dfra Operating Instructions

    DFRA Series Handling and Control Manual | 5 2. DFRA operating instructions a) Flow control or motor fan process air pressure control. b) Remote ON/OFF of fan motors. Remote ON/OFF drive gear motor of the desiccant wheel. d) Reactivation battery RB control. Regulating the reactivation battery RB controls the equipment drying capacity (see installation and maintenance manual).
  • Page 6 DFRA Series Handling and Control Manual | 6 h) Measurement and supervision: Temperature of the reactivation air measured by the probe (ST1).  Process air temperature measured by the probe (ST0) after the pre-heating  battery BC1. Process air temperature measured by the probe (ST3) after the pre-cooling ...

  • Page 7: Control Panel And Navigation Keyboard Of The Plr

    DFRA Series Handling and Control Manual | 7 3. Control panel and navigation keyboard of the PLR. I1. Break switch. I2. MANual / 0 / AUTomatic selection switch PLR. Programmable logic relay with LCD backlit black-and-white screen measuring 63x32mm and a navigation keyboard with the following functions: OPERATION/DESCRIPTION Function that will depend on the particular configuration.

  • Page 8: Modes Of Operation

    DFRA Series Handling and Control Manual | 8 4. Modes of operation The unit can operate in two operating modes in which the reactivation battery RB power output is managed differently. The unit's drying capacity is controlled by managing the reactivation battery RB. (See...
  • Page 9 DFRA Series Handling and Control Manual | 9  Functionalities of the Hn interlocks in configuration by stages "S". Interlock H1 (Terminals 24-27): ON/OFF remote ventilation and rotor connection. Interlock H2 (Terminals 24-28): Connection of the RB first phase Requires connection H1.
  • Page 10 DFRA Series Handling and Control Manual | 10  Configuration by Measurement signal "M": Using the humidity probe SH1, the PLR regulates the power delivered by the reactivation battery BR to reach the established set point. The applicable humidity ranges for the probe to be connected are as follows: Relative humidity (RH): [0…100%] // [0…10V DC]...

  • Page 11: Control Of Additional Batteries

    DFRA Series Handling and Control Manual | 11 4.3 Control of additional batteries The control of the additional batteries is independent of the selected working mode, manual or automatic. At all times:  Pre-heating battery control BC1: Using the temperature probe ST0, the PLR regulates the power delivered by the pre-heating battery BC1 to reach the set point.

  • Page 12: Initial State

    DFRA Series Handling and Control Manual | 12 5. Initial state Having fulfilled the conditions for installation, checked that the network values match those required for the machine and having made all of the electrical connections in accordance with the control application:...

  • Page 13: Configuration Menu

    DFRA Series Handling and Control Manual | 13 The unit has a remote signalling card SEF-013 with three relays (NC-NA) with which we can obtain these remote status signals. This card is located inside the unit's electrical board, in connection block X1.
  • Page 14 NB. If you change the control mode, you must change the differential pressure transmitter SQ1 air intakes. Refer to the DFRA Series User Manual, section 9.9, for a detailed explanation. The default control mode is Flow, with the SQ1 air intakes being available for this control type.
  • Page 15 DFRA Series Handling and Control Manual | 15 Diagram 1: Mode selection process STOPPAGE DISPLAY ON (Stand by) TENSION I2=0 I2=M MAN/ MANUAL MODE AUTO I2=A RUNNING 100% REACTIVATION AUTO MODE POWER “local” “remote” Local/ CONF = M S/P/M remote...

  • Page 16: Adjustments Menu

    DFRA Series Handling and Control Manual | 16 5.2 Adjustments menu In the adjustments menu (AJUS) you must enter the required setpoint values according to the operating mode and configuration selected. In this menu, the configuration setpoints and additional batteries are adjusted.

  • Page 17: Commissioning

    DFRA Series Handling and Control Manual | 17 6. Commissioning Once the I1 break switch has been armed, the setpoints have been entered in the adjustments menu and the configuration has been selected (in AUTO mode only), toggle the I2 switch in the required position.

  • Page 18: Shutdown

    DFRA Series Handling and Control Manual | 18 6.3 Shutdown To stop the device manually, set switch I2 to position 0. The PLR is programmed to include an operation delay on the reactivation fan and the speed reducer motor for 5 minutes to dissipate the heat from the reactivation battery, preventing its thermostatic protection from being triggered or any overheating due to radiation.

  • Page 19: Supervision Menu

    DFRA Series Handling and Control Manual | 19 7. Supervision menu Menu displaying the operation of the main components, the temperature and humidity values and the unit's incidents or alarms on the main screen. This is the main pre-set screen.
  • Page 20 DFRA Series Handling and Control Manual | 20 With the key navigating to the right of the main screen: On this screen are displayed: the temperature measured by the ST3 probe and, if automatic mode has been selected, the percentage of the power supplied by the reactivation battery If manual mode has been selected, the percentage will not appear, as it is always 100%.

  • Page 21: Information Menu

    DFRA Series Handling and Control Manual | 21 8. Information menu. The information menu (INF) has counters of hours of operation of the main components to assist in maintenance guidelines. M1: Process air fan motor. M2: Reactivation air fan motor.

  • Page 22: Plr Connections Status

    DFRA Series Handling and Control Manual | 22 Δ 18 Solid state relay SSR Overheating of the SSR Check that the M4 motor is operation thermostat. inadequate running normally ventilation. Dissipating check the ventilation of the fins obstructed or failure...
  • Page 23 DFRA Series Handling and Control Manual | 23 If the equipment has two control units, recognised in the electric schematic as ID1 and ID2: Pressing from any screen accesses the "Connection Status" menu, which shows the status of inputs I and outputs Q of the control unit ID1 = NT1 in real time: day, time and programme status (RUN or STOP).

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