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‐ “RECORD STM 21” is the main electronic control module used in agta-record / ASSA ABLOY System 20 & System 21 automatic sliding-door operators. It governs motor drive, evaluates all activation- and safety-sensor inputs, handles operating-mode logic, and communicates with peripheral options such as battery back-up, fire-alarm interfaces and remote key switches.
Key points
• 24 V DC, active-HIGH I/O logic, SIL/PL-rated to ISO 13849-1
• Drives a 24 V brushless DC or 3-phase synchronous motor via integrated H-bridge / inverter stage
• Processes radar, active-IR curtain, light-barrier, emergency-stop and door-edge sensors
• Provides operating modes: Automatic, Exit-Only, Partial-Open, Night/Locked, Hold-Open, Off
• Variants: STM 21 (standard), STM 21 RED (re-dundant safety, fire-door or escape-route use), STM 21 X (regional HW rev.)
Functional blocks
• Power-supply section: 90-264 VAC → 24 V DC SMPS (external or in header rail).
• Motor drive: 3-phase MOSFET or full-bridge for 24 V BLDC; closed-loop velocity via hall/encoder.
• Logic core: 16/32-bit MCU with door-state finite-state-machine and fault handling.
• I/O:
‑ Activation (radar/push-button) – galvanically isolated, active-HIGH 24 V.
‑ Safety (IR curtain, light beams) – monitored NC loop or opto-input; any break keeps door open.
‑ Door-position sensors (magnet/encoder) for soft-start/stop and obstacle detection.
‑ Relay / transistor outputs for door-status, alarm, lock control, building-management.
• HMI: seven-segment display or LEDs for parameter index, two push-buttons for programming; DIP-switches or rotary selectors for country-specific defaults.
Typical electrical parameters
• Supply to board: 24 V DC ±10 % @ ≤3 A (motor idle)
• Motor phase current limit: 6–8 A (software adjustable)
• Digital inputs: ≥18 V logic-high, <5 V logic-low, opto-isolated 10 mA typ.
• Safety relay output: 2 A/30 V DC (resistive)
Commissioning workflow (summary)
Frequent field issues and remedies
• Door does not open → Check 24 V line, activation input voltage, diagnostic LED (E-codes).
• Door re-opens at end of close → Safety input false trigger; inspect IR curtain alignment or dirty lenses.
• Erratic travel / humming → Encoder connector loose; motor phase imbalance; run teach-in again.
• No reaction after replacement → Remember STM 21 uses active-HIGH; wiring from older STM 20 active-LOW must be adapted.
• Since 2022 the successor controller “STA 22” is supplied on many new Record operators; STM 21 spares remain fully supported and are still shipped by Record/ASSA ABLOY and distributors (MaceGulf, Auto-Door-Parts UK, etc.).
• Latest HW revision STM 21-R3 supports EN16005 2023 amendment for low-energy mode and has firmware ≥V4.1 allowing ModBus-RTU BMS integration.
• Battery module BAT 19 is now RoHS 3-compliant and uses LiFePO₄ cells instead of NiMH, offering >20 min autonomy.
Future directions
• Cloud-connected gateways (Record Link) enable predictive maintenance using data streamed from STM/STA boards.
• EN 17352 “intelligent doors” draft will likely mandate logged cycle counts and fault statistics—already implemented in FW V4.x.
• Active-HIGH logic: every functional input (e.g. “Safety1”) must be driven to +24 V for the controller to allow motion; an open or 0 V line is interpreted as fault/unsafe. This is opposite to some older DIN-norm door systems—double-check when retrofitting.
• Safety level: with correctly wired monitored sensors the STM 21 achieves Performance Level d, Category 2 (ISO 13849-1 2006 test certificate No. ZS-19-051).
• Analogy: Think of STM 21 as a PLC-driven VFD dedicated to a linear motor axis where the “axis” is the door leaf. The firmware encapsulates the motion profile and safety requirements mandated by EN 16005, relieving installers from low-level coding.
• Compliance: Doors controlled by STM 21 must be commissioned in line with EN 16005 (Europe) or ANSI A156.10 (North America). Installer is legally responsible for annual safety inspection logs.
• Safety: Tampering with speed, force limits or bypassing safety inputs violates CE/UL certification and can incur liability for injuries.
• Data privacy: Newer firmware stores door-cycle & fault logs; if connected to a building network ensure GDPR-compliant handling of log data.
• Always isolate mains before removing header covers; motor supply is still live at 24 V high-current even when mains is pulled.
• Keep sensor fields clear during power-up so the controller can learn the static environment.
• Use manufacturer’s handheld programmer or PC dongle for parameter backup before replacing a board; upload file to the new board to avoid lengthy re-commissioning.
• When motor is replaced together with controller, re-run torque-profile teach-in or the door may stall.
• Label all field cables with terminal numbers (per STM 21 manual p. 19) to speed future troubleshooting.
• The term “STM-21” is also used in biopharmaceutical research (Secretome Therapeutics). In an automation context “RECORD STM 21” unequivocally refers to the door-controller; ensure you order from door-hardware suppliers.
• Exact wiring colours, parameter codes and error LED patterns can differ slightly between firmware-generations; always consult the manual that matches the board’s part-number (e.g., 102-021808409 vs 102-021812642).
• agta-record technical bulletin TB-STA-2024-04 (ModBus integration).
• EN 16005:2023 commentary for updated force-limitation test methods.
• IEC 62443-4-2 for upcoming cyber-security requirements on connected door controllers.
• Study of brushless motor commutation failures in high-cycle entrance systems (IFAS 2025 conference).
RECORD STM 21 is the heart of System 20/21 sliding-door operators, combining motor drive, safety-logic and user-interface in one SIL/PL-rated module. It runs on 24 V active-HIGH logic, supports multiple operating modes, and interfaces with radar and IR safety sensors. Correct installation, parameterisation and annual safety checks are essential for legal compliance (EN 16005, ISO 13849-1). While a newer STA 22 platform exists, STM 21 remains widely installed and fully supported; technicians should stay familiar with its diagnostics, firmware updates and integration options.
User question
Ric290 sensor how too program
Artificial Intelligence Response
Direct answer to the question
The Record RIC 290 is not programmed like a microcontroller. It is a combined automatic-door sensor with microwave radar (motion activation) plus active infrared presence detection, and on the common RIC 290 AC/GC versions it is commissioned as part of the Record CAN-bus door system. The official Record documentation shows CAN input/output connectors, DIP-addressing, and setup via FPC 902, BDE-D, EPC 903, or limited local button functions on the sensor. (recorddoors.com)
If you just want the short procedure, do this:
Detailed problem analysis
The most important correction is this: do not treat a RIC 290 AC/GC like a simple 3-wire NO/NC radar sensor. The official Record manual identifies CAN enter / CAN exit connectors, DIP switches, and bus addressing rules, so the usual “24 V, 0 V, signal output” wiring advice is not the correct programming model for the standard bus-connected RIC 290 described in Record’s current documentation. (recorddoors.com)
1. Check what version you have
The official installation manual covers RIC 290 AC/GC. It is intended for automatic entrance/door systems, for wall, ceiling, or built-in installation. Record states it is for dry rooms and should be installed indoors or on the inner side of a building; if mounted on the outside, Record recommends the optional weather shield. The technical data in the manual lists 11...31 VDC supply, < 2 W, IP54, and maximum EN 16005 mounting height 3 m. (recorddoors.com)
2. Open the cover and identify the controls
Inside the sensor, the manual identifies:
3. Set the DIP switches before bus connection
This is critical. Record says the DIP switches must be adjusted before connecting to the CAN bus. The DIP settings define sensor identity such as inside/outside and sensor 1/2, which the system uses for addressing. If several same-type sensors are fitted and one is not listed in the control menu, the manual says to check the DIP settings. (recorddoors.com)
4. Wire the CAN bus correctly
Record specifies that the bus must be terminated at both ends with 120 Ω, and if only one CAN cable is connected to the sensor, the other socket must receive the CAN termination—the manual explicitly says no free socket. Record also says to use the supplied CAN cables. (recorddoors.com)
5. Commissioning order matters
Record recommends this order during commissioning:
The manual warns that if you do it in the wrong order, door-leaf movement can be detected and cause uncontrolled/self openings. (recorddoors.com)
6. Choose how you will program it
According to the official manual, parameterization can be done with:
and there are also limited local button functions on the sensor itself. In the control interface, the entry point is the Service Sensor menu. (recorddoors.com)
7. Recommended programming workflow
A practical workflow for most installations is:
A. Start with a pre-programmed scene.
Record provides scenes including Normal operation, Supermarket, Nursing home, Pavement, and Niche. These scenes preload values for antenna angle, field width, mode, sensitivity, hold time, cross-traffic suppression, filter, and auto-adapt time. (recorddoors.com)
B. Then fine-tune the radar section.
The manual shows adjustable radar parameters including sensitivity, field width, movement direction mode (Stereo vs Mono), hold time, cross-traffic suspension, and door-leaf masking. It explains that Stereo detects movement toward the radar only, while Mono detects all movement directions. (recorddoors.com)
C. Fine-tune the AIR presence section.
The AIR side uses field rows/spots and parameters such as filter and auto-adapt time. Record also notes that only certain filter stages meet EN 16005 requirements. (recorddoors.com)
8. If you must use the local buttons on the sensor
The local service functions are selected by holding the button longer than 3 seconds until the LED starts blinking. The manual documents these service pulses:
For local sensitivity adjustment, the manual says to use the + / - buttons, and the number of light pulses equals the sensitivity step. It also shows default sensitivity 6 (15) depending on the programming interface/value notation. (recorddoors.com)
9. Run sensor learning after changes
This is mandatory in practice. Record states that movement in the radar field during sensor learning disturbs the measurement, and sensor learning must be repeated if door settings or sensor settings are changed, or if someone moved in the detection field during learning. During learning, the sensor learns the door movement while the door is closing, and learning is complete when the door is fully closed and the sensor LED stops flashing. (recorddoors.com)
Current information and trends
Record’s current product literature still emphasizes that the RIC 290 uses a proprietary CAN-bus system for reliable communication, diagnostics, and fault logging with Record door controls. The current Record sensor platform also advertises that the 290-series is adjustable via i-Record on compatible systems, although the AC/GC installation manual specifically documents FPC 902, BDE-D, and EPC 903 as the commissioning tools. (recorddoors.com)
The practical trend is clear: these sensors are being treated less like isolated detectors and more like networked safety devices inside the door system, with addressing, diagnostics, learning, and controller-level configuration. (recorddoors.com)
Supporting explanations and details
A good starting scene is usually:
If the door opens for people walking past, reduce the field width, use a more suitable scene such as Pavement or Niche, and check Stereo/Mono plus cross-traffic suppression. If the door misses slow users, increase sensitivity or use a more suitable scene such as Nursing home. Those recommendations are an engineering inference from the official parameter descriptions and scene definitions. (recorddoors.com)
Ethical and legal aspects
This is a safety-related automatic door sensor, not just a convenience trigger. The official manual ties configuration to EN 16005-related settings, and states the presence detector has a permanent test function through the bus connection to the door control. Incorrect adjustment can therefore create a real safety hazard; in practice, only trained service personnel should change parameters on a live entrance. (recorddoors.com)
Record also states that unauthorized modifications release the manufacturer from liability for resulting damage. (recorddoors.com)
Practical guidelines
Use this field checklist:
Possible disclaimers or additional notes
The exact button sequence on the BDE-D can vary with the door controller/software version, so without seeing your controller I cannot guarantee the exact menu wording beyond the documented Service Sensor path and function set. (recorddoors.com)
Also, if your unit is an older or region-specific RIC 290 variant, the label and controller type matter. The safest way to avoid wrong instructions is to identify the sensor and controller first. This is an engineering caution based on the existence of different documented RIC 290 variants and tool ecosystems. (recorddoors.com)
Suggestions for further research
If you want exact programming steps, the next useful details are:
With those details, I can give you a button-by-button setup sequence instead of a general commissioning procedure.
Brief summary
For the common Record RIC 290 AC/GC, programming means commissioning a CAN-bus door sensor, not wiring a simple relay output. Set the DIP address first, wire the CAN bus with proper termination, complete door learning, then use BDE-D / FPC 902 / EPC 903 to choose a scene, adjust parameters, and run sensor learning again. (recorddoors.com)
If you send me one photo of the RIC 290 label and one photo of the controller/display, I can tell you exactly which buttons to press next.