3-phase servomotors. FKM
3.
3-
PHASE SERVOM
O
TORS. FKM
T
empera
tu
re
se
nsors
172
· 104 ·
Ref.2105
FXM|FKM
SERVOMOTOR
RTD Pt1000 thermoresistance
The servomotors in the FKM family ·except for the FKM1/9 series· have a
platinum
R
esistance
T
emperature
D
etector Pt1000·(Ro = 1000 ohms at
0°C), providing thermal protection for the servomotor. Provides great
linearity, speed and a temperature range between -200°C/-328°F and
+850°C/1562°F. Its use is recommended in control and measurement
systems. It has no polarity.
The following figure shows the resistance of the sensor as a function of
the ambient temperature (average values):
T- 3/6
Characteristics of the RTD Pt1000 temperature sensor.
Sensor type
RTD Pt1000 thermoresistance
Sensor connection
Feedback cable
Servomotor series
FKM2/4/6/8
F- 3/3
Resistance of the RTD Pt1000 as a function of room (ambient) temperature.
Note.
The two wires of the temperature sensor are included in the
feedback cable.
200
-200
400
600
0
Tamb (°C)
0
500
R (
:
)
1000
1500
2000
2500
3000
3500
RTD Pt1000
