Technical data
13.1 Technical specifications
SIWAREX WP231
Manual, 07/2014, A5E31238908A-02
165
The set replacement value is output in case of a fault or SIMATIC CPU stop.
Table 13- 4 Technical specifications:
Error limit according to DIN 1319-1 of full-scale value at
20 °C +10 K
0 ... 20 mA: ≤ 0.5 %
4 mA to 20 mA: ≤ 0.3 %
Refresh rate ≤ 100 ms
Resolution 14 bit
Measuring ranges 0 mA to 20 mA
4 mA to 20 mA
Max. output current 24 mA
Error signal (if configured (FW)) 22 mA
Max. load 600 Ω
Temperature coefficient range ≤ ± 25 ppm/K v. E.
Temperature coefficient zero point typ. ± 0.3 μA/K
Linearity error ≤ 0.05 %
Electrical isolation 500 V AC
Cable length max. 100 m, twisted and shielded
Figure 13-1 Current ranges for signal level to Namur recommendation NE43
The set value is output at the digital output in case of a fault or SIMATIC CPU stop.
A freewheeling diode has to be installed at the consumer with inductive loads at the digital
output.
Table 13- 5 Technical specifications: Digital outputs
Quantity 4 (high-side switch)
Supply voltage range 19.2 V DC to 28.8 V DC
Max. output current per output 0.5 A (ohmic load)
Max. total current for all outputs 2.0 A
Refresh rate (FW) 100
Switching delay typ. 25 µs turn on
typ. 150 µs turn off
RDSON < 0.25 Ω
Short-circuit proof Yes
Electrical isolation 500 V AC
Cable length (meter) Max. 500 m shielded, 150 m unshielded
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