Filter Characteristics; Sensor Supply Outputs; Table 14: Technical Data - Filter Characteristics; Table 15: Technical Data - Supply Outputs - WAGO 753-668/000-004 Manual

WAGO-I/O-SYSTEM 750
753-668/000-004 4FAI 0/4-20 mA Diff PROFIsafe
Safety-related accuracy can be improved!
Application-specific averaging can improve safety-related accuracy from ±1.58 %
to ±1.25 % for two-channel use. For this purpose, the mean value of the two
process values must be formed by the safe PLC.
3.6.5

Filter Characteristics

Filtering consists of one analog and two digital filter stages.
The analog filter is designed as a second-order low-pass filter with a cut-off
frequency of 130 Hz.
The first digital filter stage adjusts the sampling frequency. The limit frequencies
of this filter stage are tabulated below.
Table 14: Technical Data – Filter Characteristics
Sampling Frequency
100 Hz
60 Hz
50 Hz
10 Hz
The adjustable smoothing of the analog signals represents the second digital
filter stage. Smoothing further lowers the cut-off frequency (see Section
"Smoothing the Input Measurement Values").
3.6.6

Sensor Supply Outputs

The sensor supply outputs are used to power connected sensors.
Table 15: Technical Data – Supply Outputs
Number of supply outputs
Power supply
Current carrying capacity
Cut-off Frequency of the Digital Filter
44.4 Hz
27.7 Hz
22.1 Hz
4.4 Hz
4 (connected internally)
Via power jumper contacts (24 VDC)
Total current: Max. 1.5 A
Version 1.0.0, valid from HW/SW Version 01/01
Device Description
Manual
35