T
T T
DI
AI
+10 V
DGND
DCOM
2
3
5
4
1
1…3 PTC sensors1
Double or reinforced insulation2
Motor winding3
Digital input and analog input. Set the analog input type to V (volt) in parameter group
12 Standard AI. Define the temperature sensor type, signal source, etc. with parameters
35.11…35.24. For the sensor type, select: PTC AI/DI Voltage Divider tree. Make sure that
the digital input is not configured to any other use by parameters.
4
10 V reference voltage5
AI1 and AI2 as Pt100, Pt1000, Ni1000, KTY83 and KTY84 sensor inputs
WARNING!
IEC 61800-5-1 requires double or reinforced insulation between live parts
and accessible parts when:
• the accessible parts are not conductive, or
• the accessible parts are conductive, but not connected to the protective
earth.
Obey this requirement when you plan the connection of the motor
temperature sensor to the drive.
To comply with the drive safety standard IEC 61800-5-1:
If the motor temperature sensor has double or reinforced insulation vs. the motor
windings, you can connect it directly to the drive IO interface. This section shows
the connection. If the sensor has no reinforced insulation, you must use another
type of connection to comply with the safety standard. See Implementing a motor
temperature sensor connection (page 60).
You can connect temperature measurement sensors (one, two or three Pt100
sensors; one, two or three Pt1000 sensors; or one Ni1000, KTY83 or KTY84) between
an analog input and output as shown below. Make sure that the voltage does not
exceed the maximum allowed voltage over the sensor. Leave the sensor end of
the cable shield unconnected.
112 Electrical installation – North America
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