Electrical Connections - ABB SM500F User Manual

SM500F
Field mountable paperless recorder

2.3 Electrical Connections

Warning.

The recorder is not fitted with a switch therefore a disconnecting device such as a switch or circuit
breaker conforming to local safety standards must be fitted to the final installation. It must be fitted
in close proximity to the recorder within easy reach of the operator and must be marked clearly as
the disconnection device for the recorder. A fuse must be fitted in accordance with Fig. 2.11.

Remove all power from supply, relay and any powered control circuits and high common mode
voltages before accessing or making any connections.

Use cable appropriate for the load currents: 3-core cable rated 3 A and 90 °C (194 °F) minimum,
that conform to either IEC 60227 or IEC 60245. The terminals accept cables from 0.8 to 2.5 mm
(18 to 14 AWG).

The recorder conforms to Installation Category II of IEC 61010.

All connections to secondary circuits must have basic insulation.

After installation, there must be no access to live parts, for example, terminals.

Terminals for external circuits are for use only with equipment with no accessible live parts.

If the recorder is used in a manner not specified by the Company, the protection provided by the
equipment may be impaired.

All equipment connected to the recorder's terminals must comply with local safety standards (IEC
60950, EN601010-1).
Note.

Always route signal leads and power cables separately, preferably in earthed (grounded) metal
conduit.

Use screened cable for signal inputs and relay connections.

Replacement of the internal battery (type Varta CR2025 3V lithium cell) must be carried out by an
approved technician only.
USA and Canada only

The supplied cable glands are provided for the connection of signal input and ethernet
communication wiring only.

The supplied cable glands and use of cable/flexible cord for connection of the mains power
source to the mains input and relay contact output terminals is not permitted in the USA or
Canada.

For connection to mains input and relay contact outputs), use only suitably rated field wiring
insulated copper conductors rated min. 300 V, 14 AWG, 90C. Route wires through suitably rated
flexible conduits and fittings.
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2 Installation
2
IM/SM500F Rev. Z