FAN SPEED CONTROL ADR 80 - 230
ADR80230_5.04_eng
Project:
ADR Regulator
Revision Doc.:5,0
Date
: 29.05.2009
Page.
14
13.1 What you should know by rating and designing a speed controller
To be watched
Reason
To do
Higher current in part load operation
In part load operation in relation to
the used fan motor higher currents
will be measured. These currents
are mostly higher than data printed
on machine plate of motor
Ask Motor Manufuturer for current when used with TRIAC control.
If not possible calculate about 20 % as security on top of the current written on the
motor plate
By pratical expierience motors have been found with 30% higher current as written
on motor
This has to be considered also by rating overload protectors and fuses
Wrong signal and measured data
Close locations of signal lines
along power lines or contactors
lead to wrong signals to the
controller
Signal line should be isolated and/or seperatly installed away from power lines
To save motor and controller it is
recommended to use overload
protectors and/or fuses
Since ADR controller do have a
wide range of current there is no
chance to protect the controller
itself against short circuits in power
supply or motor
A protection against high current or short circuits is not obligatory. But it protects
motor and speed controller in case of power supply problems and short circuits from
motor side.
.
Chosing an ADR speed controller
Watch higher currents in part load
operation
By chosing the size of a speed controller take higher currents in part load conditions
into your calculation. If you do not have data from the motormanufacturer add 15-20
% on top of the max current mentioned on the motor plate.
13.2 Alarm Management
A number of alarms are displayed. The display shows the type of alarm and gives an indication of the problem.
The table below shows the alarms displayed, the action at the fan adjustment and the reason of the fault.
Alarm
Reason
To do
ALARM PHASE
POWER SUPPLY
•
Wrong Voltage
•
No funktion of controller
•
Press OFF Key and with PROG Key correct setting of
Voltage
ALARM PROBE 1 / 2
ERROR
•
Signal line broken
•
Over or under Limit
•
Sensor (Probe) defekt,
•
Sensor connections wrongly installed
•
Jumper below the 8 pole (green) Terminal wrongly placed
•
Change signal line
•
Change settings.
•
Change Sensor
•
Check connections on sensor and controller side
•
Place Jumper correctly
No info in Display of remote
control (dark or unreadable
signs
•
Remote control(Display) or ADR controller defect
•
Change Display or ADR board
Pressure on Display not
analog to pressure gauge
(Manometer)
•
Wrong max .pressure set in Setup
•
Wrong refrigerant set in Setup
•
Correct setting of maximum pressure according to the used
pressurer tranducer or correct refrigerant
ADR switches off despite of
demand from system
•
Signal line not isolated and to close install to power lines and
Contactors. Tolerance of ADR exceeded
•
Caused by Interference in industrial and commercial areas
•
Close to train and Metro stations and its power supply lines
•
Seperate signal line from power lines and contators and
isolate signal lines
•
Use Filter (Ferrit) in power supply per line to ADR
Display 0%
Motor still running
•
There is a very little current from signal line or external control
existing
•
Minimum speed to be set from 0 % to 5-10 %
This extends the lif expectancy of the motor and switchs it off
when no demand.
Elektro magnetic noise
during part load operation
•
Slow motion fan units in particular with large diameters could
cause electro magnetic noise when running at low speed. In
addition at low speed a resonance in the surrounding area
could occur.
•
In many cases an increase to a minimum speed of 5-10% will
solve the problem
•
The use of a noise filter in connection with capacitors in each
line is a final and one of the best solutions
Running- and vibration noise
•
Fan units, even when speed controllable, are mainly balanced
and optimised for full speed.. At low speed vibrations could
appear which are
reinforced by resonance.
•
Carry out a test to find Minimum speed under which vibration
noise stops. Set Minimum speed..
•
Start fan motor always with full speed for 2-3 seconds. It
overrides the critcal speed within a short time.
14.1 Technical Data and Limits
Power supply
230/400V ( - 15% + 15%) Single and three phase defined in setup by remote control (D-LCD)
Frequenzy:
50 or 60 Hz +/- 2%, automatic recognition trough Software
Cos phi motor
Automatic recognition through Software and adjustment of control characteristics
Installation, Safety class
Model ADR 80 and 230 for cabinet installation, Safety class IP 20
Cabinet ventilation recommended to compensate a heat generation of total ca. 4.5 Watt per Ampere.
Operating conditions
–18°C to +50°C ambient temperature, relative Humidity max. 85% not condensing.
Remote control Display LCD: Lowest temperature 0°C, because of visibility in LCD Display.
Overload/Starts per hour
2 x max. amps for 20 seconds, 30 Starts per hour
