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03/2006
How are the tem-
The signal leads for motor temperature monitoring on 1FN motors are installed
perature sensors
not in the encoder cable, but in the motor power cable. In order to sense the
winding temperature of the drive, the temperature sensor signal leads must be
evaluated?
looped into the encoder cable (temperature sensor coupling lead).
–X411
SIMODRIVE
611 D
Drive A
U2 V2 W2 PE
Power cable
1FN
–X411
SIMODRIVE
611 D
Drive A
U2 V2 W2 PE
Power cable
1FN
Fig. 6-35
Evaluation of KTY temperature sensor (black/white) and switch or PTC (yellow/red)
(whether temperature switch or PTC resistor depends on motor type, i.e. 1FN1 or 1FN3)
© Siemens AG 2006 All Rights Reserved
SINUMERIK 840D/810D Start-Up Guide (IADC) – 03/2006 Edition
6.10 Linear motors (1FN1 and 1FN3 motors)
Linear scale
Case a)
The temperature is monitored
via the drive.
Temperature sensor
coupling lead
Linear scale
Evaluation
external
Case c)
The temperature is monitored
via an external device only.
6 Programming the control
Case b)
The temperature is monitored via the drive and
an external device.
S
Temperature sensor via drive
S
External temperature switch on 1FN1
S
On 1FN3 with PTC resistors via
control unit
Linear scale
–X411
SIMODRIVE
611 D
Temperature sensor
coupling lead
Drive A
U2 V2 W2 PE
Evaluation
Power cable
1FN
external
6-145
6
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