Siemens SIMATIC FM 351 Manual page 161

Technical Specifications
Dimensions W H D (mm)
Weight
Current consumption (from the backplane bus)
Power dissipation
Auxiliary power supply for the encoders
Encoder supply
Auxiliary power supply for the load current
Supply of digital inputs and outputs
Load voltage reverse polarity protection
FM 351 Positioning Module
C79000-G7076-C351-02
Dimensions and weight
80 125
Approx. 535 g
Current, voltage and power
max. 200 mA
Typ. 7.9 W
Auxiliary supply: 24 V DC (X1, terminal 1)
(permitted range: 20.4 to 28.8V)
Horizontal installation S7-300, 20 C:
– 5.2 V/500 mA (for both channels)
– 24 V/800 mA (for both channels)
Horizontal installation S7-300, 60 C:
– 5.2 V/500 mA (for both channels)
– 24 V/600 mA (for both channels)
Vertical installation S7-300 S7-300, 40 C:
– 5.2 V/500 mA (for both channels)
– 24 V/600 mA (for both channels)
Current consumption from 1L+ (without load):
max. 100 mA (X1, terminal 1)
Encoder supply 24 V, unregulated
– L+ –2V (X2/X3, terminal 5)
– Short-circuit protection: yes, thermic
Encoder power supply 5.2V (X2/X3, terminal 6)
Short–circuit protection: yes, electroic
Permitted potential difference between input
(ground) and central ground connection of the
CPU: DC 1V
Auxiliary supply: 24 V DC (X1, terminal 19)
(permitted range: 20.4 to 28.8V)
Current consumption from 2L+ (without load):
max. 50 mA (X1, terminal 19)
Permitted potential difference between input
ground connection 1M (X1, teminal 2)
– and the central grounding point (shield): AC
60V; DC 75V
– Insulation tested with 500 V DC
Permitted potential difference between input
ground connection 2M (X1, terminal 20)
– and the central grounding point (shield): AC
60V; DC 75V
– Insulation tested with 500 V DC
No
Technical Specifications
120
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