Description
ABB 1SAP250100R0001 AX521 Analog Input/Output Module AC500/S500 Series Analog Input/Output Module
[Product Positioning]
1SAP250100R0001 is an analog mixed I/O module in the ABB AC500/S500 series. Model interpretation: AX521 is the module series code, 1SAP250100R0001 is the factory order number, and 3ABD10066541 is the international order number. This module integrates 4 analog inputs and 4 analog outputs into a single compact circuit board. It is a remote I/O slave module of the AC500 controller and a digital alternative to traditional independent transmitters, independent D/A converters, and hard wired solutions. It is designed for industrial automation scenarios that require precise process monitoring and control.
[Core Function]
This module simultaneously undertakes tasks such as analog signal acquisition, analog signal output, signal conditioning, and bus communication. Built in high-precision A/D and D/A converters provide electrical isolation between all channels, effectively suppressing common mode spike interference of the frequency converter. The module communicates with the main controller through the AC500 I/O bus (serial port), with a typical data refresh cycle of 2ms. No additional programming is required, and parameters can be directly set in the AC500 system configuration tool.
ABB 1SAP250100R0001 Analog Input/Output Module AX521
Analog input (4AI)
Number of channels: 4, can be independently configured.
Support signal types: voltage (0-10V, -10 to+10V), current (0-20mA, 4-20mA), thermistor (Pt100, Pt1000), nickel resistor (Ni1000), and can also be used as digital input (DI).
Resolution: 12 bits+sign bit.
Conversion cycle: 2ms for voltage/current channel, 1s for Pt100/Pt1000/Ni1000 channel.
Input impedance: voltage input>100k Ω, current input about 330 Ω.
Filter time constant: software programmable, voltage channel typically 100 μ s, current channel typically 100 μ s.
Wire breakage detection: supported, automatically triggers a fault alarm when the signal is lost.
Overvoltage protection: The voltage input can withstand a continuous overvoltage of ± 30V without damage.
All channels support reverse connection protection and short circuit protection.
Analog output (4AO)
Number of channels: 4, can be independently configured.
Support signal types: voltage (0-10V) or current (0-20mA, 4-20mA).
Resolution: 12 bits+sign bit.
Output accuracy: ± 0.1% FS.
Attention: When configured for voltage output, the maximum total output current for each group is limited to 75% of the rated value (for example, if rated at 40mA, the maximum output current is 30mA).
All channels support disconnection detection and overload protection.
Summary of I/O Configuration
Analog input: 4-channel, voltage/current/Pt100/Pt1000/Ni1000/DI, 12 bits+sign bit, module level electrical isolation.
Analog output: 4-channel, voltage/current, 12 bits+sign bit, module level electrical isolation.
Digital input: No independent DI channel (AI channel can also serve as DI).
Digital output: No independent DO channel.
All I/O channels provide electrical isolation, with a typical isolation voltage of 500V DC.
[Communication Interface]
Bus interface: I/O-Bus serial port, connected to AC500 CPU or communication interface module.
Communication protocol: AC500 dedicated I/O bus protocol.
Data refresh: Typically 2ms (under 8AI+8AO conditions), this module refreshes faster with 4AI+4AO.
Front panel: 4 yellow LED indicators display the status of input I0~I3, and 4 yellow LED indicators display the status of output O0~O3.
[Physical Specifications]
Dimensions: Approximately 90mm x 25mm x 115mm (width x depth x height, including terminals), net weight of approximately 0.2kg (some data indicate 0.3kg).
Installation method: 35mm DIN rail, supports horizontal or vertical installation (when installed vertically, the output load above 40 ° C is reduced to 50%).
Front panel protection level: IP20 (rear panel IP20), suitable for general industrial environments.
Working temperature range: 0 ° C to+60 ° C, storage temperature -40 ° C to+70 ° C.
Auxiliary power supply: 24V DC (± 5%), powered by AC500 bus, no external power supply required.
Typical power consumption: Approximately 2mA during normal operation (powered from the 24V bus), with additional consumption during output load.
Fanless design, no electrolytic capacitors, no moving parts, normal coating coated board, maintenance free long-term operation.
Programming and Configuration
Use ABB Control Builder or AC500 system configuration tool for channel configuration, range setting, filtering parameters, and alarm threshold setting. The signal type, range, filtering, and alarm of all channels can be directly set in the software without the need for on-site jumpers or potentiometers. Support remote parameter modification and online diagnosis. The module status (channel fault, communication status, disconnection detection) can be directly viewed on the AC500 panel HMI.
Self diagnosis and alarm
The device continuously self monitors internal faults, channel anomalies, and configuration drift, and reports its health status directly to the main controller. Each analog input supports upper and lower limit alarms, and the alarm values can be independently set. When an alarm is triggered, the module sends an alarm signal to the main controller through the I/O bus, which can be configured to trip, slow down, stop, or only record. The LED indicator light displays the real-time signal status of each channel.
Certification and Standards
Compliant with IEC 61000 series electromagnetic compatibility standards and IEC 61131 programmable controller standards. Certified by CE, cULus, UL 508, DNV (marine), ABS, BV, CSA, LR, GL, GOST, KCC, C-Tick, etc. Compliant with EU Directive 2002/95/EC (RoHS). HS code 85389091. Origin: Germany (DE).
[Typical Application]
Process control: Collect sensor signals such as temperature, pressure, flow rate, and liquid level as PID feedback inputs or given values for the AC500 controller.
Valve control: Output a 4-20mA signal to control the opening of the regulating valve, achieving closed-loop regulation such as constant pressure water supply and constant temperature control.
Data collection: Upload on-site analog signals to the SCADA/DCS system for production monitoring and data recording.
Suitable for applications that require precise analog control, such as water pumps, fans, compressors, conveyors, extruders, chemical reactors, etc.
Comparison with the same series
AX521（1SAP250100R0001）：4AI + 4AO， 12 bits+symbol bit, suitable for medium scale analog data acquisition and control (this product).
AX522（1SAP250000R0001）：8AI + 8AO， 12 bit+symbol bit, with the richest I/O configuration, suitable for large process control systems.
AX521-XC (1SAP450100R0001): 4AI+4AO, XC version, suitable for AC500-XC safety control system.
TU515 (1SAP212200R0001): I/O terminal unit, 24V DC, screw terminal, used for expanding field wiring.
TU516 (1SAP212000R0001): I/O terminal unit, 24V DC, spring terminal, used for expanding field wiring.
The electrical interfaces of each module are consistent, the software is compatible, and can be selected as needed.
