Siemens SIMATIC S5-90U, Системное руководство

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S5-90U/S5-95U Module Spectrum
Analog Output Module 2 x 4 to 20 mA (6ES5 470-8MC12)
Technical specifications
Output range
(rated value)
4 to 20 mA
Number of outputs 2
Galvanic isolation yes (outputs to
grounding point and
between outputs)
Load resistance 300
Capacitive load incl.
cable capacitance
< 100 nF
Connection method two-wire connection
Digital representation
of output signal
11 bits + sign
(1024 units = rated
value)
Measured value two's complement
representation (left-justified)
Conversion time
(0 to 100%)
max. 0.15 ms
Permissible overload 25%
Open-circuit voltage ± 12 V
Permissible voltage
difference to central
ground point and
between outputs
max. 75 V DC/60 V AC
Basic error limits ±0.2%
(operational error limits
at 25°C, referred to output
range)
Operating error limits
(0 to 60 °C, referred to
output range)
(32 to 140 °F)
±0.6%
Length of cable
- shielded
max. 200 m (660 ft.)
Supply voltage L+
- rated value
24 V DC
- ripple V
PP
3.6 V
- permissible range 20 to 30 V
(ripple included)
Rated insulation voltage
(+9 V to )
12 V AC
- insulation group 1 x B
- tested with 500 V AC
Rated insulation voltage
(outputs to L+,
between outputs,
output to + 9 V )
60 V AC
- insulation group 1 x B
- tested with 500 V AC
Current consumption
- from + 9 V (CPU)
typ. 120 mA
- from L+ typ. 130 mA
Power loss of
the module
typ. 3.8 W
Weight approx. 220 g (10 oz.)
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L+
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+9 V
GND
Data
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+QI
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ANALOG OUTPUT
2 x 4 ... 20 mA
6ES5 470-8MC12
1 2 3 4 5 6
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24 V
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+
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4
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Ch.0
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MANA
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QI
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Ch.1
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MANA
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QI
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R 300
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MANA
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L+
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M
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0 V
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- 15 V
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+15 V
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+QI
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MANA
Legend:
QI: Analog output
”current”
EWA 4NEB 812 6115-02b
15-97