Voltdrive HomeGuard User Manual

BASIC PURPOSE
The HomeGuard residual capacity meter is a
device primarily used in the VoltGuard system
as the information source for regulating
the charging current of the electric vehicle
charging station. The meter is designed to
be connected directly to the power supply
circuit either next to the distribution meter
or into the main switchboard of the building.
It is serially connected after the distribution
meter and the input circuit breaker ensuring
that the measured values are the same as
the values measured by the electricity meter
and evaluated by the input circuit breaker trip
circuit.
The main function of a residual capacity meter
is, of course, to measure the flowing current
with sufficient accuracy and to compare it with
the set limit. The comparison result is then
sent in pre-defined periods through the RS485
communication bus. The meter can send the
differences between the measured and pre-set
values as well as the current absolute values measured on all three phases.
MAIN FEATURES
¬ Direct connection of current conductors
¬ Maximum current of 63 A
¬ Current measurement accuracy up to 2%
¬ Internal power source 230 V AC, 50 Hz
¬ RS485 communication line for sending the measured data
¬ Compact DIN rail box dimensions
¬ LED status indication
¬ Service setting by a serial terminal
VOLTDRIVE s.r.o.,
Háj 365 (MICOS TELCOM premises), 798 12 Kralice na Hané, Czech Republic
Tel.: +420 582 307 603, Fax: +420 582 307 688
e-mail: info@voltdrive.com, www.voltdrive.com
HomeGuard
USER MANUAL
1