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Short description
I/O module 1 ABR incremental encoder 24 V
General information
B&R ID code 0xDD28
Status indicators I/O function per channel, operating state, module status
Diagnostics
Module run/error Yes, using LED status indicator and software
Power consumption
Bus 0.01 W
Internal I/O 1.2 W
Additional power dissipation caused by actuators (resistive) [W] -
Type of signal lines Shielded cables must be used for all signal lines.
Certifications
CE Yes
EAC Yes
UL cULus E115267
Industrial control equipment
HazLoc cCSAus 244665
Process control equipment
for hazardous locations
Class I, Division 2, Groups ABCD, T5
ATEX Zone 2, II 3G Ex nA nC IIA T5 Gc
IP20, Ta (see X20 user's manual)
FTZÚ 09 ATEX 0083X
DNV GL Temperature: B (0 - 55°C)
Humidity: B (up to 100%)
Vibration: B (4 g)
EMC: B (bridge and open deck)
LR ENV1
KR Yes
Digital inputs
Quantity 2
Nominal voltage 24 VDC
Input characteristics per EN 61131-2 Type 1
Input voltage 24 VDC -15% / +20%
Input current at 24 VDC Approx. 3.3 mA
Input circuit Sink
Input filter
Hardware ≤2 µs
Software -
Connection type 3-wire connections
Input resistance 7.03 kΩ
Additional functions Latch input
Switching threshold
Low <5 VDC
High >15 VDC
Isolation voltage between channel and bus 500 Veff
ABR incremental encoder
Encoder inputs 24 V, symmetrical
Counter size 16/32-bit
Input frequency Max. 300 kHz
Evaluation 4x
Minimum diff. slew rate 1 V/μs
Encoder power supply Module-internal, max. 600 mA
Input filter
Hardware ≤0.5 µs
Software -
Switching threshold
Low >5 V
Common-mode range -10 V ≤ VCM ≤ +13 V
Overload characteristics of encoder power supply Short-circuit proof, overload-proof
Isolation voltage between encoder and bus 500 Veff
Electrical properties
Electrical isolation
Channel isolated from bus

Channel not isolated from channel
Operating conditions
Mounting orientation
Horizontal Yes
Vertical Yes
Installation elevation above sea level
0 to 2000 m No limitation
>2000 m Reduction of ambient temperature by 0.5°C per 100 m
Degree of protection per EN 60529 IP20
Ambient conditions
Temperature
Operation
Horizontal mounting orientation -25 to 60°C
Vertical mounting orientation -25 to 50°C
Derating See section "Derating".
Storage -40 to 85°C
Transport -40 to 85°C
Relative humidity
Operation 5 to 95%, non-condensing
Storage 5 to 95%, non-condensing
Transport 5 to 95%, non-condensing
Mechanical properties
Note Order 1x terminal block X20TB12 separately.
Order 1x bus module X20BM11 separately.
Spacing 12.5 +0.2 mm
Material number:
X20DC137A
Description:
  • 1 ABR incremental encoder 24 V, differential
  • Encoder input monitoring
  • 2 additional inputs, e.g. for latch input
  • 24 VDC and GND for encoder supply
  • NetTime timestamp: Counter change

The module is equipped with 1 input for an ABR incremental encoder with 24 V encoder supply. The encoder inputs are monitored (A, B, R, A\, B\, R\). The module is suitable for incremental encoders with symmetrical push-pull outputs.

The plug-in module does not come equipped with line terminating resistors. For this reason, it is possible to connect encoders with low output current; nevertheless, the module is suitable only for low counter frequencies or short encoder cables due to possible line reflections.

Mandatory Accessories
Bus modules
X20BM11 X20 bus module, 24 VDC keyed, internal I/O supply continuous
X20BM15 X20 bus module, with node number switch, 24 VDC keyed, internal I/O supply continuous
Terminal blocks
X20TB12 X20 terminal block, 12-pin, 24 VDC keyed
Automation Studio HW Upgrades Version (Date) Download
V2.7 HW Upgrade (X20DC137A) EXE / 1 MB
V3.0 HW Upgrade (X20DC137A) EXE / 2 MB
V4.0 HW Upgrade (X20DC137A) EXE / 994 KB
Certificates Version (Date) Download
244665 CSA HazLoc Certificate of Compliance X20, X67 PDF / 56 KB
DNV GL Type Approval Certificate - X20 / Power Panel T30 PDF / 171 KB
E115267 UL CoC X20 PDF / 825 KB
FTZU 09 ATEX 0083X PDF / 697 KB
KR Type Approval Certificate MIL39390-AC003 (X20 System) PDF / 758 KB
Lloyds Register PDF / 579 KB
Documentation Version (Date) Download
Datasheet X20DC137A PDF / 406 KB
X20 System User´s Manual PDF / 50 MB
E-CAD (Electro or EPLAN Templates) Version (Date) Download
X20 EPLAN P8 from V2.4 EXE / 161 MB
M-CAD (Mechan. Templates) Version (Date) Download
3D File DXF/STEP X20 Electronic module ZIP / 10 KB
3D File STEP X20 I/O-Slice ZIP / 872 KB
Dimensions PDF X20 Electronic module PDF / 3 KB

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