Alpes Technologies LEGRAND ALPIMATIC Notice D'installation page 39

Message A01: undercompensation
All the capacitors are connected but the cos ϕ is less than the cos ϕ set point.
- check the cos ϕ set point value setup.
- if the error persists, your capacitor bank is undersized, you should add reactive power to your
installation. The required 'kvar' value can be displayed with the led "∆ kvar" (marked 7 on page 30)
Message A02: over compensation
All the capacitors are disconnected and the cos ϕ is above the set point value.
- check the cos ϕ set point value setup.
- the installation may have fixed capacitors
- the installation may be unloaded
- check the position of the current transformer (diagrams page 27).
- if the error persists (with the installation under load), call the manufacturer
Message A03: current too low
The line current is 2,5% lower than the C.T primary current setting.
- check that the primary of your C.T is suitable for the mains line current.
- check your C.T. is not short-circuited
- check the current circuit is properly "conducting"
- with loads connected this message will disappear
Message A04: current too high
The current exceeds the C.T primary current setting by 20%.
- check the C.T primary value set in the controller.
- check that the primary of your C.T is suitable for the mains line current.
- if the secondary current is too high (primary too low) the controller may be damaged.
Message A05: voltage too low
The measured voltage is 15% lower than network voltage.
- low voltage will disconnect the steps.
Message A06 : voltage too high
The measured voltage is 10% above the network voltage.
- high voltage will disconnect the steps.
Message A07 : over temperature
Temperature inside the capacitor bank is too high, report to the ventilation conditions of the electrical
room (page 27).
Message A08 : capacitor overload
The capacitor bank is stressed by important harmonic perturbations, all the steps are disconnected:
please call the manufacturer
Message A09 : presence of micro-power cuts on the network
The presence of micro-power cuts as for consequence the disconnection of steps
Message A10 : Faulty step
The controller indicates the step which lost some power
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11 – ALARM MESSAGES
Page 39
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