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Technical data
12.1
Technical data
24 V power supply
Note
A protective extra-low voltage (to EN 60204‑1) is to be ensured by system power supply.
Rated voltage
Static low / high limits
Dynamic low / high limits
Non-periodic overvoltages
Maximum current consumption
Typical power consumption of the module
Power supply from SIMATIC S7 backplane bus
Power consumption from SIMATIC S7 backplane
bus
Analog load cell interface connection
Error limit to DIN1319-1
at 20 °C +10 K
Accuracy according to OIML R76 (no approval for
measurements requiring verification)
● Class
● Resolution (d=e)
● Error percentage pi
● Step voltage
Accuracy delivery state
Sampling rate
Input signal resolution
Measuring range
Common mode voltage range
DMS supply
Short-circuit and overload protection
Connection
Sensor voltage monitoring
min. DMS input resistance
SIWAREX WP321
Operating Instructions, 08/2019, A5E33715669A-AD
2)
3)
24 V DC
19.2 V DC / 28.8 V DC
18.5 V DC / 30.2 V DC
35 V DC for 500 ms with a recovery time of 50 s
100 mA with 24 V DC
2 W
Typically 20 mA
≤ 0.05% v.E.
1)
III and IV
3000d
0.4
0.5 µV/e
typ. 0.1% v.E.
100/120/600 Hz (depending on parameterization)
± 2 000 000 (for cells with 4 mV/V)
± 4 mV/V
0.25 to 4.75 V
4.85 V DC ±2 %
Yes
6-wire
≤ 4 V
12
115
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