Siemens SIMATIC S5-95F - Page 517

Module Spectrum S5-95F
Analog Input Module 4 x ± 20 mA (continued) (6ES5 464-8MD11)
Technical Specifications
Input ranges
(rated values) ±20 V
Number of inputs 1, 2 or 4
(selectable)
Galvanic isolation yes (inputs to
grounding point;
not between inputs)
Input resistance 25
Connection method two-wire
of sensors connection
Digital representation 12 bits+sign
of input signal (2048 units =rated
value)
Measured value two's complement
representation (left-justified)
Measuring principle integrating
Conversion principle voltage-time
conversion
(dual slope)
Integration time 20 ms at 50 Hz
(adjustable for optimum 16.6 ms at 60 Hz
noise suppression)
Encoding time
per input
- for 2048 units max. 60 ms at 50 Hz
max. 50 ms at 60 Hz
- for 4095 units max. 80 ms at 50 Hz
max. 66.6 ms at 60 Hz
Permissible voltage
difference
- between inputs max. ±1 V
- between inputs and
central ground point max. 75 V DC/60 V AC
Permissible
input voltage
(destruction limit) max. 80 mA
Fault indication for
- range exceeded yes (more than
4095 units)
- sensor wire break no
- general indication of
wire break no
Noise suppression
for f=nx
(50/60 Hz±1%);
n=1,2, ...
- common-mode min. 86 dB
rejection (V
pp
=1 V)
- series-mode rejection min. 40 dB
(peak value of noise
< rated value of
input range)
Basic error limits ±0.2 %
(operational error limits
at 25°C (77 °F), referred to the
input ranges of the module)
Operational error limits ±0.45 %
(0 to 60 °C (32 to 140 °F),
referred to the input
ranges of the module)
Length of cable
- shielded max. 200 m (660 ft.)
Supply voltage L+ none
Rated insulation voltage
(+9 V to ) 12 V AC
- insulation group 1×B
- tested with 500 V AC
Rated insulation voltage
(inputs to +9 V) 60 V AC
- insulation group 1×B
- tested with 500 V AC
Current consumption
- from +9 V (CPU) typ. 70 mA
Power loss of the
module typ. 0.7 W
Weight approx. 230 g (8 oz.)
EMC Characteristics for Use in S5-95F
Electrostatic discharge
to IEC 801-2 Severity rating: none
tested with 6 kV air discharge
<2 kV contact
discharge
Electromagnetic fields
to IEC 801-3 Severity rating 2
tested with 3 V / m
Fast transient burst
to IEC 801-4 Severity rating 3
tested with 1 kV on signal lines
A-22 EWA 4NEB 812 6210-02