ICAR PQS ALL65 rev7 jan18
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CODE ALARM MEANING
A06 Voltage too high
The measured voltage is higher than the threshold set with
P17.13.
A07 Panel temperature too high
The panel temperature is higher than threshold set with
P17.06.
A08 Capacitor current overload
The calculated capacitor current overload is higher than
threshold set with P17.08 and/or P17.09.
A09 No-Voltage release
on the line voltage inputs
A11
Harmonic protection Module nr.
The RMS current measured by the
higher than threshold set with P18.n.06.
A12
Harmonic protection Module nr. n
The current THD measured by the
higher than threshold set with P18.n.07.
A19 Slave xx link error
The slave nr. X does not communicate with the master.
Check the RS-485 wiring.
A20 Clean the air filter Clean the air intake filter of the ventilation system.
A21 Routine maintenance Check each step current, fuses and contactors.
A22 Extraordinary maintenance
capacitors conditions or contact technical service.
CONNECTION OF THE LINE CURRENT TRANSFORMER
Mount the current transformer on the phase not concerned with the pick-up of the voltage signal by the reactive
power regulator (usually phase L1, also marked by R) and before the branch supplying the power factor
correction board (the transformer should measure the current of the loads plus that of the power factor correction
board).
The current transformer should be of class 0.5 or 1, with apparent power equal to at least 6VA. If other loads are
present in parallel to the current transformer, check their power consumption and increase the apparent power if
necessary. When the distance of the current transformer from the unit is less than or equal to 20mt, use 4mm
2
cables for the connection; if not, increase the size of the cables (for further information, consult the Service
department).
INFORMATION AND SERVICE
For more information, please contact:
ICAR Power Quality Solutions by ORTEA S.p.A. - Tel. +39 02 9591 7800
www.icar.com
Service: tech.cv@icar.com
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