RELAYOUTPUTS
Up to 3 fully isolated relay outputs are
available. Most of the parameters measured can be
assigned to the relays.(marked ")
COMMUNICATION
PowerRelay uses RS485 Modbus protocol.
This enables remote reading and programming of
the PowerRelay via a host computer.
The RS485 allows up to 32 PowerRelays to be
connected in parallel, allowing them to be used
with PC, PLC, RTU, Data loggers and Scada
programs.
The PowerRelay’s communication port is auto-configurable meaning
that when connected to an existing Modbus network it will automatically
set Baud rate, Parity and Stop bits.
A red LED is provided to indicate power is
present, and the unit is communicating correctly.
PROGRAMMING.
The following can be programmed via the RS485
port: CT and VT ratios, assigning parameters to the
set point relays, energy relay pulse duration etc.
SOFTWARE.
Set-up and monitoring software is available free
from your Multitek distributor or visit the Multitek
website www.multitek-ltd.com
OPTIONS
PULSED OUTPUT
An option of pulsed output via a relay is offered.
The pulsed output can be assigned to W.h, Var.h
(import or export), A.h or VA.h.
ORDERING INFORMATION
Information required Example
3 phase 4 wire unbalanced load M570-PR9
Nominal input voltage 230V AC
Nominal input current 5A AC
System Frequency e.g. 50Hz
Auxiliary e.g. 230V
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