41
Instruction Manual
SVGm
Example:
The compensation requirements for an installation are:
∙
cos
Φ
higher than 0.95 inductive from Monday to Friday, from 8 a.m. to midnight, with no capac-
itive penalty.
∙
Outside these hours, inductive power is permitted, but capacitive is not, meaning the target is
cos
Φ
≤ 1 inductive.
∙The main configuration will be: compensation in
Mode 2
, with an acceptable range from 0.96 induc-
tive to 0.7 capacitive. Assume a margin of 0.01 points (from 0.96 to 0.95) to compensate for measure-
ment errors between the billing device and the
SVGm
.
∙The alternative configuration will be: The alternative time period is defined from midnight to 8 a.m.,
Monday to Friday, and all day Saturday and Sunday. Compensation in
Mode 2
, from 0.7 inductive to
0.99 inductive.
This configuration satisfies the specified requirements with no penalty.
4�5�-
SELF-TEST
The device is fitted with a self-test system. The device checks the integrity of the hardware and soft-
ware control elements when starting up. This analysis is carried out according to
IEC60730
.
This system ensures the device remains in a safe state in the event of failure. The user is alerted to the
failure thanks to an on-screen message and it is also found in the Modbus register.
This type of failure indicates damage or degradation of any of the control and process elements,
both hardware and software. Turning off the device and contacting
Technical Service
is recommended
whenever this alarm comes about.
4�6�- THERMAL PROTECTION
The device features several levels of thermal protection:
Ventilation regulation
, the fan speed is adjusted as needed at any given time, thus minimising the
noise in the device.
Static temperature limitation,
the device reduces its power if the internal temperature exceeds
certain limits. This maximises the availability of the device in any situation.
Dynamic limitation of the device,
one of the factors affecting the reliability of the device is the
stress caused by repeated heating and cooling cycles. The device adjusts both its ventilation and power
to minimise the impact that thermal cycling has on the life of the device.
Safety shutdown,
despite the above measures, the temperature of certain components may exceed
their maximum allowable level if the device is used in environmental conditions beyond the specified
range. To avoid damaging the device or installation, the device will completely shut down automatically.
The device must be disconnected from its power supply for 30 minutes to rearm this protection
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