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Isolation areas
The following figure shows the different isolation areas of the module. Isolation areas
A and B and the mounting screw are connected to ground. Isolation area C is in the
same potential as the PTC sensor element in the motor.
1
1
Connection to the drive
2
Mounting screw, chassis
3
PTC Warning
4
PTC Fault
5
STO 1
6
STO 2
There is reinforced insulation between:
•
isolation areas A and C
•
isolation areas B and C.
Connections
Motor thermistor connection
￭
•
Maximum wire size: 2.5 mm
•
Maximum wire length: 700 m (2300 ft) (1400 m [4600 ft] for the whole loop)
With the specified cable type, detection of a short-circuited PTC sensor or cable
is not guaranteed after 100 m (328 ft).
•
Type: Shielded, twisted-pair cable (Draka JAMAK 1×(2+1)×0.5 mm
•
Tightening torque: 0.5 N·m (4.4 lbf·in)
•
Supported standards: DIN 44081 and DIN 44082
A
C
2
2
(14 AWG)
5
B
XSTO1
XWRN
3
Technical data 57
6
XSTO2
XFLT
4
2
or equivalent)
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