Motor Temperature Measurement Through The Standard I/O - ABB ACS350 User Manual

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Motor temperature measurement through the standard I/O

This section describes the temperature measurement of one motor when the drive I/
O terminals are used as the connection interface.
Motor temperature can be measured using PT100 or PTC sensors connected to
analog input and output.
One sensor
Motor
WARNING! According to IEC 664, the connection of the motor temperature sensor
requires double or reinforced insulation between motor live parts and the sensor.
Reinforced insulation entails a clearance and creepage distance of 8 mm (400 /
500 VAC equipment). If the assembly does not fulfill the requirement
• the I/O board terminals must be protected against contact and they may not be
connected to other equipment
or
• the temperature sensor must be isolated from the I/O terminals.
Program features
T
10 nF
Three sensors
AI1
Motor
GND
T T
AO
GND
T
10 nF
AI1
GND
AO
GND