ZENER VARIDRIVE SOLUTIONS
ZENER ECODRIVE® 8000
IM00130
P a g e
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20/07/2018 3:59 PM
Output Filters
Some pump motors are not ‘inverter rated’ motors and manufacturers require special output filters to be fitted.
Output filters may also be recommended for installations for the following reasons:
•
To eliminate RF interference in sensitive environments
•
To eliminate the need for screened motor cables
•
Long cable runs
•
Poor motor insulation or old motors with poor insulation
•
Reduce/eliminate bearing currents
Contact Zener to discuss requirements and the most economical solution.
The ZENER High Performance Output Filter:
The Zener High Performance Output Filter (HPOF) requires connection to the DC bus. The
ECODRIVE includes the following terminals for the filter if required.
Chassis Size:
Connection
CHA (8E1 to 8E16)
Use PV input terminals
CHB (8E23 to 8E57)
Use PV input terminals
CHC (8E82 to 8E170)
Use Fused (30A) B+/B- terminals provided
CHD (8E220 to 8E490)
Use Fused (30A) B+/B- terminals provided
Refer to the High Performance Output Filter Manual for connection & cable size requirements.
IM00151 Installation Manual:
IP66 High Performance High Efficiency Output Filte
r
IM00123 Installation Manual:
IP00 High Performance Output Filter
Earthing
READ ALL SAFETY WARNINGS (page 2-5), IN PARTICULAR EARTHING.
It is mandatory to provide protection against electric shock. It is therefore critical that every effort is made to ensure correct
& adequate earthing is in place and all electrical hazards are removed. Good earthing also helps EMC performance, prevents
possible equipment damage and necessary for effective lightning protection.
Attention should be given to equipment which is painted to ensure earthing continuity is present. Ensure purpose made
fittings for bonding of dissimilar metals are used.
Earthing Arrangement:
The ECODRIVE must be earthed using the required conductor size as per local rules and regulation. The earth connection of
the ECODRIVE must be solidly connected to the installation ‘earth’, which is also connected to all exposed conductive parts as
required by appropriate standards. In a solar only installation an earth electrode must be installed. This must be installed and
checked by a qualified & experienced person.
In some cases PV manufacturers may suggest connecting the Positive of the PV Array to the earth to prevent electrolysis and
corrosion. This must not be done with the ECODRIVE operating from an auxiliary AC power supply. Both sides (+ & -
terminals) of the solar array MUST be isolated from earth for systems using an auxiliary AC supply.
Lightning Protection
A good earth connection is important for lightning protection. Zener recommends that surge protection devices also be
installed at the ECODRIVE on the AC & DC supply inputs and PV array if located in an area where lightning flash density is
greater than two flashes per square Km per year.
Fused terminals provided on CHC
& CHD for connection of a ZENER
High Performance Output Filter.
(30Amp fuse fitted)
Depending on the filter (IP00 or
IP66) either the B+ only or both or
B+ and B- connection required.
