and the drive control unit. See section Connection of motor temperature sensor to
the drive via an option module (page 100).
4. You can connect the sensor to a digital input of the drive via a customer’s external
relay. The sensor and the relay must form a double or reinforced insulation between
the motor live parts and the drive control unit. See section Connection of motor
temperature sensor to the drive via a relay (page 101).
￭ Connecting motor temperature sensor to the drive via an option module
This table shows:
• the option module types that you can use for the motor temperature sensor
connection
• the insulation or isolation level that each option module forms between its
temperature sensor connector and other connectors
• the temperature sensor types that you can connect to each option module
• the temperature sensor insulation requirement in order to form, together with the
insulation of the option module, a reinforced insulation between the motor live parts
and the drive control unit.
Temperature sensor insula-
tion requirement
Temperature
sensor type
Option module
Pt100,
Pt1000
KTYPTCInsulation/IsolationType
Reinforced insulationxx-Galvanic isolation between
sensor connector and other
connectors (including drive
control unit connector)
FIO-11
Reinforced insulation-xxGalvanic isolation between
sensor connector and other
connectors (including drive
control unit connector)
FEN-xx
Basic insulation. Connectors of
option module other than
sensor connector must be left
unconnected.
xxxBasic insulation between
sensor connector and drive
control unit connector. No insu-
lation between sensor connect-
or and other I/O connectors.
FAIO-
01
No special requirement--xReinforced insulation between
sensor connector and other
connectors (including drive
control unit connector).
FPTC-
xx
1)
1)
Suitable for use in safety functions (SIL2 / PL c rated).
Guidelines for planning the electrical installation 87
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