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
2
or equivalent)
• Tightening torque: 0.5 N·m (4.4 lbf·in)
• Supported standards: DIN 44081 and DIN 44082
• Number of PTC thermistors: 1, 3 or 6 in series (in both inputs)
• Triggering threshold: 3.6 kohm ±10%
• Recovery threshold: 1.6 kohm ±10%
• PTC terminal voltage: < 5.0 V
• PTC terminal current: < 1 mA
• Short-circuit detection: < 50 ohm ±10% (for the effect of the cable
length, see above)
￭ STO output connection
• Maximum wire size:
• 2.5 mm
2
(14 AWG) without FSO module
• 1.5 mm
2
(16 AWG) with FSO module
• Maximum wire length: 30 m (98 ft) for the whole loop
• Tightening torque: 0.5 N·m (4.4 lbf·in)
• Contact rating: 24 V DC (17 … 30 V), 1 A / channel
• Maximum breaking capacity: 1000 VA
Ambient conditions
For the environmental limits for the safety functions and the drive,
refer to the hardware manual of your drive.
Safety data
The FPTC-02 module is a type A safety component as defined in
IEC 61508-2. For the types of the drive/inverter STO and the FSO
module, see the applicable hardware manual or FSO user's manual.
The table gives the safety data for the SMT function with different
configurations. The calculations are based on the worst case data of
the drive Safe torque off (STO) function. The PFH/PFD
avg
values can
be different based on the internal configuration of the FSO module.
82 Technical data
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