Siemens SIWAREX FTA, Руководство по эксплуатации устройства

Страница: 196 / 207

Technical Data
SIWAREX FTA
14-184
Permitted load cell resistance without Ex-i-Interface Input resistance > 56 Ω
Output resistance < 4010 Ω
Permitted load cell resistance with Ex-i-Interface Input resistance > 87 Ω
Output resistance < 4010 Ω
Monitor for sensing inputs Typical = 5 V
Hysteresis 120 mV
Response time for sense line monitor = 1 sec
Common mode rejection CMRR @50 Hz Typical 120 dB
Measuring value filtering for low pass filter 0.05...20 Hz
Measuring value filtering for average value filter 2...250 values
Impedance measurement for load cells Measuring range 56 Ω...4010 Ω
Precision ±5%
Repeat accuracy <1 %
Potential separation 500 V
* Values apply to assembly output
Table 14-3 Data: Load cell connection
14.4 Analog output
The defined replacement value is output for active BASP-/OD signal
(S7 CPU).
Range 1 0 to 20 mA
Range 2 4 to 20 mA
Max. total error at 25 °C < 0,5 % *
Refresh rate 10 msec
Load (incl. line resistance) = 250 Ω, = 30 nF
Line length 0.5 mm
2
200 m
Temperature coefficient max. ± 75 ppm / K
Resolution 12 Bit (4096 parts) **
Potential separation 500 V
* Definitions apply with current >0.5mA
** Resolution reduced by 20 % with operations 4 to 20 mA
Table 14-4 Data: Analog output
14.5 Digital inputs (DI), Digital outputs (DO)
The defined value is always output on the DO for active BASP-/OD
signal (S7 CPU).
An inverse diode (recovery diode) is to be used on the consuming
component with inductive loads on the DO.
DI DO
Number 7 8
Rated voltage DC 24 V
Potential separation 500 V
Voltage range for H signal DC 15 V to
30 V
Voltage range for L signal DC -3 V to
5 V
Input current (15 to 30 V) 2 to 15 mA
Switching frequency max. 50 Hz max. 50 Hz
Rated current 0.5 A