page 48
TORNADO SPECIFICATIONS
RELAY DESCRIPTION
using Tornado-PLC cable The solid-state relay is mounted on a PCB, which is
Part number 351-063 housed in a 15 pin D-type connector.
Connection to the relay output is via a 5 metre length
screened cable. The end of the cable is left with bare
wires to allow appropriate termination to the peripheral
PLC device.
ELECTRICAL
Supply voltage: The relay is powered from a 5V regulator inside the Tornado.
Input control: The relay state is controlled via a TTL signal from the Tornado and
is in a 'closed position' when a logic '1' input is applied.
Output characteristics of Relay (351-063)
Peak relay ac voltage: 350 V
Continuous relay load current (PEAK AC): 120 mA
Maximum relay peak load current: 300 mA
Typical relay contact resistance at 100 mA: 17 (Ohm)
Isolation voltage between Tornado and relay output: 1500 V ac
WATER RESISTANCE
The Tornado is rated to IP54 water resistance.
Note: This IP rating is only valid when no charger or comms cables are connected, and the
charger socket cap and comms connector cover are in place.
ADAPTOR/CHARGER UNIT
The mains adaptor/charger supplied with the Tornado is a constant-current type.
Primary: 230V - 50Hz (110V - 60Hz version also available)
Secondary: 100mA constant current at 9V
Charger output plug: Centre = positive Outer = negative
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