fisair DFRA Series Use and maintenance manual

FISAIR S.L. C/Uranio, 20; PoI. Ind. Aimayr, 28330 San Martín de la Vega (Madrid) España.
Tel: [phone] Fax: [phone] | [e-mail]| fisair.com
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.

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Contents
1. Introduction. ....................................................................................4
2. DFRA operating instructions...............................................................5
3. Control panel and navigation keyboard of the PLR. ..............................7
4. Modes of operation ...........................................................................8
4.1 Manual mode.............................................................................................8
4.2 Automatic mode.........................................................................................8
4.3 Control of additional batteries .................................................................11
5. Initial state..................................................................................... 12
5.1 Configuration menu................................................................................13
5.2 Adjustments menu .................................................................................16
6. Commissioning...............................................................................17
6.1 Manual mode selection...........................................................................17
6.2 Automatic mode selection.......................................................................17
6.3 Shutdown .............................................................................................18
6.4 Emergency stop.....................................................................................18
7. Supervision menu ........................................................................... 19
8. Information menu...........................................................................21
9. List of alerts. ..................................................................................21
10. PLR connections status.................................................................... 22

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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.
The integration of the programmable logic relay MFD-TITAN in the dehumidifier
management and operational supervision provides faster, simpler, more accurate and
more reliable operation of the dehumidifier, while reducing electrical panel accessories.
The MFD-TITAN PLR controlling this type of equipment is a programmable device for the
configuration, setting and monitoring of the different equipment components connected
in real time. The equipment is operated from its own display or from a remote device.
The Electrical Diagram should be kept
along with this manual
The automatic program is designed so that the execution, actions and/or reactions
produced by the machine and its surroundings do not affect the level of safety and
functionality the machine is built for, while also observing the electromagnetic
compatibility directive.
Any removal and/or modification of the program contained in the PLR, operated from its
own display or an online PC, will modify the guarantee conditions, as well as compliance
with the directives and explicit rules covering its manufacture. The installer, handler or
user will then be responsible for the repercussions of the changed functionality of the
device.
The programmed device does not interfere with safety against personal injury; the
following examples of passive safety components are installed for this purpose:
Grills, covers and insulation. Thus, in an extreme case of malfunction, the machine must
be switched off from the mains connection via I1 and Technical Services informed.

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2. DFRA operating instructions
a) Flow control or motor fan process air pressure control.
b) Remote ON/OFF of fan motors.
c) 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).
Manual mode, at 100% power.
Automatic mode:
Configuration by "S" stages via two external digital signals.
Proportional configuration “P” via a 0..10V DC analogue signal from an
external regulator.
Configuration by measurment signal “M”. By means of a humidity
probe SH1 (0..10V DC).
e) Pre-heating battery control BC1:
Modo Manual o Automático. Mediante la sonda de temperatura ST0
(0..10Vcc).
f) Pre-cooling battery control BF1:
Manual or Automatic mode. Via the temperature probe ST3 (0-10V DC)
installed in the BF1.
g) Post-cooling battery BF2 and post-heating battery BC2 control:
Manual or Automatic mode, depending on the chosen configuration:
Proportional configuration “P”. Via an analogue signal 0-10V DC,
from an external regulator.
Configuration by measurement signal "M". By means of a
temperature probe ST4 (0-10V DC).

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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
battery BF1.
Process air temperature measured by the probe (ST4) after the post-
cooling battery BF2.
Process air temperature measured by the probe (ST4) after the post-
heating battery BC2.
Synopsis of component operation screen.
Monitoring the proportional modulation of the BR (power delivered by the
reactivation battery BR).
Monitoring the power delivered by the pre-heating battery BC1.
Monitoring the power delivered by the pre-cooling battery BF1.
Monitoring the power delivered by the post-cooling battery BF2.
Monitoring the power delivered by the post-heating battery BC2.
Humidity measurements (relative, absolute, dew point or mixing ratio) and
temperature measured by the probe SH1-ST2 to be installed in the process
air inlet or return.
Humidity and temperature measurements by the probe SH2-ST4 to be
installed in the dry air supply.
Monitoring humidity set point.
Monitoring maximum humidity alarm set point.
Minimum reactivation air flow of and rotor rotation.
i) Safety and alarms:
Timing at the disconnection of the humid-air motor fan and the gearmotor
for cooling the equipment.
Alarm and equipment shutdown due to lack of air in the reactivation.
Alarm and equipment shutdown due to lack of rotation of the desiccant
rotor.
Alarm and equipment shutdown due to triggering any motor thermal cut-
off.
Alarm and equipment shutdown due to triggering electrical protective
devices of the heaters.
Alarm and heater shutdown due to excessive SSR temperature.
Alarm for blocked process and reactivation filters (if applicable).
Alarm and BR heater shutdown due to excessive reactivation temperature
as measured by probe ST1.
BC2 heater shutdown due to excessive temperature as measured by
operating thermostat TF3. To be reset manually.

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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:
KEY
OPERATION/DESCRIPTION
Function that will depend on the particular configuration. Where
applicable, this will be explained in the relevant section.
The screen brightness can be increased from the start display.
Function that will depend on the particular configuration. Where
applicable, this will be explained in the relevant section.
The screen brightness can be reduced from the start display.
This allows you to return from a sub-status to start display screen.
Navigation keys for moving the cursor horizontally or vertically
and/or change of sub-status.
Modify the numerical data that need to be adjusted.
Numerical and/or selection validation function.
Function that will depend on the particular configuration. Where
applicable, this will be explained in the relevant section.
On the main screen this enables you to enter the active
connections status. To exit this status, press this key again.
Function that will depend on the particular configuration. Where
applicable, this will be explained in the relevant section.

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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
installation and maintenance manual)
There follows an explanation of the unit's operating modes:
4.1 Manual mode
If manual mode (MAN) is selected, the fan motors, speed reducer motor that turns the
rotor and the reactivation battery will start up immediately at 100% of their power
output.
If the equipment has additional batteries, you must enter the required set points in the
settings menu for proper operation.
4.2 Automatic mode
In automatic mode (AUTO) the start-up of the fan motors and the speed reducer motor
depends on the H1 interlock and the operation of the reactivation battery is contingent
on the configuration of the control and interlock H2.
There are three control configuration types for the operational management of the
reactivation battery RB.
Configuration by stages "S"
By means of two external digital signals, the reactivation battery is controlled
with two interlocks: H2 and H3. Each stage delivers an adjustable percentage of
power.

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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.
-Interlock H3 (Terminals 24-29) Connection of the RB second
phase.
Proportional Configuration “P”:
By means of an external regulated analogue signal 0...10V DC from a humidity
controller/regulator a power output of 0...100% is obtained, supplied by the
reactivation battery RB.
This signal must be connected to the terminals 0A-A1. (See the associated
electrical diagram).
Functionalities of the Hn interlocks in proportional configuration "P".
-Interlock H1 (Terminals 24-27): ON/OFF remote ventilation and
rotor connection.
-Interlock H2 (Terminals 24-28): Reactivation battery ON/OFF
connection. Requires connection H1.
-Interlock H3 (Terminals 24-29) Not applicable in configuration "P".

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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]
-Absolute humidity (Hx): [0…20g/kg] // [0…10V DC]
-Dew point (Tdp): [-60…+40ºC] // [0…10V DC]
The SH1 probe must be connected to the X1:0A-A2 terminals. (See the associated
electrical diagram).
The required humidity set point and the differential for the maximum permissible
humidity alarm are entered in the settings menu (AJUS) under HR/Hx/Tdp.
The humidity alarm will be visible and will flash on the main screen when the
value measured by the SH1 probe is higher than the sum total of the setpoint
and the humidity alarm.
Functionalities of the Hn interlocks in proportional configuration "P".
-Interlock H1 (Terminals 24-27): ON/OFF remote ventilation and
rotor connection.
-Interlock H2 (Terminals 24-28): Reactivation battery RB ON/OFF
connection. Requires connection H1.
-Interlock H3 (Terminals 24-29) Not applicable in configuration
"M".