Guidelines for planning the electrical installation 87
Drive I/O, I/O extension and encoder interface modules
See
• section AI1 and AI2 as Pt100, Pt1000, PTC and KTY84 sensor inputs (XAI, XAO) on
page 116
• section DI6 (XDI:6) as PTC sensor input on page117
• FPTC-01 thermistor protection module (option +L536) for ACS880 drives user’s
manual (3AXD50000027750 [English])
• FPTC-02 ATEX-certified thermistor protection module Ex II (2) GD (option
+L537+Q971) for ACS880 drives user’s manual (3AXD50000027782 [English]).
This table shows what temperature sensor types you can connect to the drive I/O
extension modules as well as the insulation requirement for the sensor.
Note: The inaccuracy of the drive analog inputs for Pt100 sensors is 10 °C (50 °F). If a
better accuracy is needed, use the FAIO-01 analog I/O extension module (option +L525).
Extension module Temperature sensor
type
Temperature sensor
insulation requirement
Type Insulation/Isolation PTC KTY Pt100,
Pt1000
FIO-11 Galvanic isolation between sensor
connector and other connectors
(including drive control unit connector)
- X X Reinforced insulation
FEN-xx Galvanic isolation between sensor
connector and other connectors
(including drive control unit connector)
X X - Reinforced insulation
FAIO-01 Basic insulation between sensor
connector and drive control unit
connector. No insulation between
sensor connector and other IO
connectors.
X X X Basic insulation. Connectors
of extension module other
than sensor connector must
be left unconnected.
FPTC-
xx
Reinforced insulation between sensor
connector and other connectors
(including drive control unit
connector).
X - - No special requirement