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THREE PHASE AUTOMATIC VOLTAGE REGULATOR Issue: Jan 2016
6.4 Error Modes
If the AVR has shut down it is possible to observe the LEDs on the PCBs within the unit. These can display two
different error modes.
This procedure should be carried out by qualified personnel only.
The main door to the unit may be opened whilst the supply is still connected. It is then possible to see the PCBs.
There are a number of LEDs visible down one edge of each of the three PCB groups. One of the following two
error indications may be observed.
a) The square LEDs in a group scan in a cyclical pattern starting at the top moving to the bottom repeatedly. This
indicates that a fault has occurred in the voltage measurement feedback circuit. Contact your nearest Sollatek
agent or Sollatek (UK) for advice.
b) The green and red undervoltage LEDs in the same group flash. This indicates that an AVR system fault has
occurred. Again, contact Sollatek for advice.
These indications may be observed on any or all of the three PCB groups.
7. Specifications
Model
Input voltage
Output voltage
Correction time
Frequency range
Voltage protection
THD
Max. amb. Temp.
Acoustic Noise
Expected Service Life
Technology
Bypass modes
Restart modes
Filtering (Optional)
Standards
: Three Phase Automatic Voltage Regulator
: 230/400V +22% -30% (Other voltages available)
: 230/400V +/- 4% (+/- 2.0% with HA Option)
: within 15 m sec
: 45Hz to 88Hz
: Automatic under voltage protection
: < 0.25%
: 40 C
: < 45 dB
: > 25 years
: All solid state (static) switching
: Manual bypass for maintenance. Automatic bypass on
(Optional) AVR fault and overload.
: Supply to output is automatically disconnected when
(optional AVS) supply outside preset limits and re-connected when
voltage becomes good. Built-in 3 minute delay.
: Input and output noise and spike filtered
: Manufactured to comply with :-
EN60065
EN60555
BSEN50081
BSEN50082
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