Zener ECODRIVE 8000 Installation Manual Supplement page 6

ZENER VARIDRIVE SOLUTIONS
The ECODRIVE does not have integral disconnect devices and these must be provided externally for each supply source.
The disconnector in the DC supply circuit must be rated to switch the whole photovoltaic array current and rated to
switch the array maximum open circuit DC voltage at the expected minimum temperature. A pole in each polarity is
required.
In Dual Supply applications where the ECODRIVE is supplied from AC power and DC power from a photovoltaic generator,
a disconnect contactor must be fitted in series with the AC input of the ECODRIVE. Control for the disconnect contactor
coil must be powered by a transformer powered from 2 phases of the AC Power Supply.
In Dual Supply applications where the ECODRIVE is supplied from AC power and DC power from a photovoltaic generator,
a 1600V Blocking Diode must be fitted in series with either the Positive or Negative conductor in every array string. Refer
to wiring/application section for more details.
This equipment is intended for use only in fixed wiring applications. It is not intended for use on a flexible supply cable
without the use of a connection with an industrial connector according to IEC 60309 and a minimum protective
Earthing conductor cross-section of 2.5mm
provided.
Due to high system leakage capacitances, integral EMC filtering and the dynamic system voltage changes, this equipment
is not compatible for use with residual current devices for protection against electric shock.
If a residual current device used for the protection against a fire hazard is required, it must be fitted on the AC input of
the ECODRIVE when operating from an earth referenced AC supply. A type A or type B device can be used if the AC supply
is single phase. The residual current device must be type B when the AC supply is three phase.
A separate residual current device or monitor is required if protection against a fire hazard is required when the
ECODRIVE is disconnected from the AC supply and powered from the photovoltaic generator.
Install emergency stop circuitry that removes power from the equipment and does not depend on any feature of the
product for proper and safe operation.
Earthing:
It is the installer's responsibility to assure that all earthing connections are properly made and meet all local rules and
regulations.
All exposed conductive parts of the ECODDRIVE, motor and solar panels must be earthed to ensure personal safety in all
circumstances.
A protective earthing conductor shall be connected at all times when power is supplied to the ECODDRIVE.
Unless local wiring regulations state otherwise, the protective earthing conductor cross-sectional area shall be
determined from the following table:
Cross-sectional area of Supply conductors
2
S (mm )
S ≤ 4
4 ≤ S ≤ 16
16 < S ≤ 35
35 < S
The values in this table are valid only if the protective earthing conductor is made of the same metal as the phase
conductors.
IM00130
ZENER ECODRIVE® 8000
2
as part of a multi-conductor power cable. Adequate strain relief shall be
Minimum cross-sectional area of corresponding
protective earthing conductor
2
Sp (mm )
4
S
16
S/2
P a g e | 5 20/07/2018 3:59 PM