Category: Safety technology > X20 System > Analog input modules
2 safe analog input pairs for current measurement 0.5 to 25 mA 24-bit digital converter resolution Channels individually galvanically isolated Sensor power supplies galvanically isolated Input filter configurable The module is equipped with 2 safe analog input pairs for current measurement.
Each input pair has its own sensor power supply.
The channels with their respective sensor supplies are electrically isolated from each other.
It can be used to capture current signals in the range from 0.5 to 25 mA.
The safe analog input module is suitable for safely acquiring current signals for safety-related applications up to PL e or SIL 3.
This module is designed for X20 16-pin terminal blocks.
Technical Specifications
Short description
- I/O module = 2x 2 safe type A analog inputs, 0.5 to 25 mA, channels individually galvanically isolated
General information
- Diagnostics
- Module run/error = Yes, using LED status indicator and software
- Inputs = Yes, using LED status indicator and software
- Blackout mode
- Scope = Module
- Function = Module functionality
- Standalone mode = No
- Power consumption
- Bus = 0.25 W
- Internal I/O = 1.7 W
- Electrical isolation
- Channel - Bus = Yes
- Channel - Channel = Yes
- Channel pair - Channel pair = Yes
- Certifications
- CE = Yes
- UKCA = Yes
- CRA (Cyber Resilience Act) = In preparation
- Functional safety = cULus FSPC E361559 Energy and industrial systems Certified for functional safety ANSI UL 1998:2013
- Functional safety = IEC 61508:2010, SIL 3 EN 62061:2005/A2:2015, SIL 3 EN ISO 13849-1:2015, Cat. 4 / PL e IEC 61511:2004, SIL 3
- Functional safety = EN 50156-1:2004
- ATEX = Zone 2, II 3G Ex nA nC IIA T5 Gc IP20, Ta (see X20 user's manual) FTZÚ 09 ATEX 0083X
- UL = cULus E115267 Industrial control equipment cULus E537419 Engine generator controller
- HazLoc = cCSAus 244665 Process control equipment for hazardous locations Class I, Division 2, Groups ABCD, T5
- DNV = Temperature: A (0 to 45°C) Humidity: B (up to 100%) Vibration: A (0.7 g) EMC: B (bridge and open deck)
- CCS = Yes
- LR = ENV1
- KR = Yes
- ABS = Yes
- BV = EC21B Temperature: 5 - 45°C Vibration: 0.7 g EMC: Bridge and open deck
- KC = Yes
- B&R ID code = 0xB8B5
- Status indicators = I/O function per channel, operating state, module status
- Additional power dissipation caused by actuators (resistive) [W] = 0.36
Safety characteristics
- Note = See section "Safety characteristics".
I/O power supply
- Nominal voltage = 24 VDC
- Voltage range = 24 VDC -15% / +20%
Safe analog inputs
- Permissible input signal
- Voltage = Max. 30.5 V
- Max. error at 25°C
- Gain
- 0.5 to <4 mA = <0.3%
- 4 to 25 mA = <0.08%
- Offset
- 0.5 to <4 mA = <2 µA
- 4 to 25 mA = <6.3 µA
- Max. gain drift
- 0.5 to <4 mA = <1.225 µA/°C
- 4 to 25 mA = <1.225 µA/°C
- Max. offset drift
- 0.5 to <4 mA = <0.735 µA/°C
- 4 to 25 mA = <0.735 µA/°C
- Common-mode rejection
- DC = >70 dB
- 50 Hz = >70 dB
- Input filter
- Hardware = First-order low-pass filter / cutoff frequency 500 Hz
- Software = Sinc 3 filter
- Test voltage
- Channel - Bus = 500 VDC
- Channel pair - Channel pair = 500 VDC
- Channel - Ground = 500 VDC
- Safety-related accuracy per channel
- Cat. 3 = 0.184 mA
- Cat. 4 = 0.49 mA
- Quantity = 2 safe input channel pairs
- Variant = Type A
- Input type = Differential input
- Digital converter resolution = 24-bit
- Conversion time = See chapter "I/O update time".
- Output format = SAFEINT
- Load = Up to hardware revision D3: 230 to 420 Ω, hardware revision E0 or later: 185 to 245 Ω
- Input protection = Protection against external supply voltages and overcurrent
- Open-circuit detection = Yes, using software
- Conversion procedure = Sigma-delta
- Common-mode range = Between the inputs ±50 V
- Nonlinearity = <0.003%
- Measurement range = 0.5 to 25 mA
- Resolution = 1 µA/LSB
- Overload detection = Yes, using software
- Filter time = Configurable between 1 and 66.7 ms
Sensor power supply
- Electrical isolation
- Sensor power supply - Channel = No
- Sensor power supply - Sensor power supply = Yes
- Nominal voltage = 29 VDC ±5%
- Nominal output current = Max. 60 mA
- Short-circuit proof = Yes, continuous
- R DS(on) = 50 Ω
- Behavior on short circuit = Voltage cutoff
Operating conditions
- Mounting orientation
- Horizontal = Yes
- Vertical = Yes
- Installation elevation above sea level = 0 to 2000 m, no limitation
- Degree of protection per EN 60529 = IP20
