Connection Of A Motor Temperature Sensor To The Drive I/O; Installation Sites Above 2000 Metres (6562 Feet) - ABB ACS800 Hardware Manual

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Connection of a motor temperature sensor to the drive I/O

WARNING! IEC 60664 requires double or reinforced insulation between live parts
and the surface of accessible parts of electrical equipment which are either non-
conductive or conductive but not connected to the protective earth.
To fulfil this requirement, the connection of a thermistor (and other similar
components) to the digital inputs of the drive can be implemented in three alternate
ways:
1. There is double or reinforced insulation between the thermistor and live parts of
the motor.
2. Circuits connected to all digital and analogue inputs of the drive are protected
against contact and insulated with basic insulation (the same voltage level as the
drive main circuit) from other low voltage circuits.
3. An external thermistor relay is used. The insulation of the relay must be rated for
the same voltage level as the main circuit of the drive. For connection, see the
Firmware Manual of the drive application program.

Installation sites above 2000 metres (6562 feet)

WARNING! Protect against direct contact when installing, operating and servicing
the RMIO board wiring and optional modules attached to the board. The Protective
Extra Low Voltage (PELV) requirements stated in EN 50178 are not fulfilled at
altitudes above 2000 m (6562 ft).
Planning the electrical installation