Czy wolisz polską wersję strony elektroda?
Nie, dziękuję Przekieruj mnie tamRECORD STM 21
• “Record STM 21” is the main electronic control module used in Record’s System 20 family of pedestrian sliding‑door operators.
• It supplies all motor‑drive, safety, logic and interface functions, operates with an active‑HIGH 24 V control philosophy, and is available in several variants (e.g., STM 21, STM 21 RED).
• Typical part numbers are 102‑021808409 (standard) and 102‑021809018 (RED).
Functional role
• Central CPU for System 20/STA 21 operators – drives the 24 V dc brushless motor, monitors position via encoder, handles soft‑start/soft‑stop ramps, brakes and current limiting.
• Safety chain management – inputs for light curtains, presence detectors, safety beams, emergency‑stop, fire‑alarm release.
• Mode selection – terminals or key switch for “Automatic / Exit / Partial Open / Night / Off / Hold‑Open”.
• Diagnostics – multi‑color LED or 7‑segment display codes report fault numbers (motor overload, obstacle, battery low, etc.).
• Parameter programming – dip‑switches or handheld programmer for hold‑open time, opening width, low‑energy speed, sensor blanking, door weight class.
Electrical characteristics (typical)
• Supply: 230 Vac ±10 %, 50/60 Hz → internal SMPS 24 V dc / ±5 % for logic & motor.
• Control logic: “active HIGH”; ≥ +24 V dc on an input pin activates the corresponding function, compliant with ISO 13849‑1 PL c/d safety rating (per manufacturer’s data).
• Outputs: 24 V dc, max 200 mA for external beacons/locks; floating relay contacts for Building‑Management‑System (BMS) feedback.
Mechanical environment
• Matched to STA 20 / STA 21 track and ATE 21 drive unit.
• Door weight classes: up to ≈ 1 × 120 kg (single‑leaf) or 2 × 80 kg (bi‑parting) at 1 m s⁻¹ max opening speed.
• Ambient: −15 °C … 50 °C, 10–90 % RH non‑condensing.
• Ingress protection: IP20 when inside the header; final rating depends on door profile.
Typical wiring overview
• Mains → STM 21 → SMPS → Motor + battery charger (BAT 19, 19.2 V Ni‑MH, 2 Ah).
• Sensors (radar, IR curtain) on X1/X2, safety beams on X3, fire alarm on X4.
• Key switch & mode selector on X5.
• Lock solenoid on X6 (24 V dc).
Variants
• STM 21 (standard, grey PCB) – CE‑marked, EN 16005 compliant.
• STM 21 RED – identical hardware with additional emergency‑evacuation approvals (e.g., German TÜV “RED” escape‑route) and often paired with break‑out doors.
• Record has shifted new installations to the “STA 22” platform featuring CAN‑bus motor modules and smartphone‑based setup, but STM 21 remains the dominant spare part for the huge installed base of System 20/21 operators worldwide.
• Spare‑part distributors currently quote €1.2 k – €1.5 k ex‑VAT (2024). Stock is still good, but end‑of‑life notification is expected within 3‑5 years as EU Ecodesign and cyber‑security rules (MDR, RED‑DA) tighten.
• Retrofit kits with STM 21 x (drop‑in) plus LED sensor bars are offered to raise legacy doors to EN 16005 & DIN 18650:2010 revision.
• Predictive‑maintenance add‑ons (cloud vibration sensors, cycle counters) are now marketed; they piggy‑back on STM 21’s diagnostic bus.
• Active‑HIGH logic means all safety devices must switch 0 V when safe and open‑circuit/high to trigger a stop – inverse of most PLC wiring; installers must respect this to avoid nuisance door stops.
• The optional BAT 19 pack guarantees at least 30 min or 100 cycles of evacuation operation during mains failure, as required by EN 16005 Annex G.
• The “E‑BUS” 3‑wire connector accepts Record’s plug‑in modules (Wi‑Fi logger, GSM remote, key card).
• Automatic door operators fall under the EU Machinery Directive 2006/42/EC; final responsibility for compliance lies with the installer/integrator.
• Doors serving escape routes must satisfy EN 16005 (EU) or ANSI 156.10 / 156.27 (US) plus local fire‑code acceptance tests.
• Because STM 21 stores parameters that influence kinetic energy, unauthorized tampering can create safety hazards—service personnel should be certified.
• Data‑logging add‑ons may capture entry counts; GDPR or local privacy laws apply if data can be linked to individuals.
Replacement/retrofit
• Isolate mains, disconnect battery, anti‑static precautions.
• Photograph all wiring before removal; note 24 V polarity.
• After swap, run teach‑in cycle (hold “Reset” 3 s; door self‑calibrates stroke and current limits).
Commissioning best practices
• Check door leaf weight, roller wear, track straightness (< 1 mm sag).
• Verify sensor fields with EN 16005 “test body” 700 mm × 300 mm × 200 mm foam.
• Record log of safety‑stop force (< 150 N) and dynamic force (< 67 N) at 500 mm height.
Troubleshooting tips
• Code 04: Motor overcurrent – look for binding rollers, mis‑aligned door.
• Code 0C: Safety input active – dirty IR curtain, wrong polarity.
• No display: Check 230 V fuse (T2 A) and 24 V output; battery may back‑feed a shorted SMPS.
• Specifications above are consolidated from current distributor datasheets and Record manuals (rev. 03/2024); slight regional variants exist.
• Record occasionally re‑labels STM 21 as “STG 21” for OEM channels—electronics are identical.
• Not all System 20 headers have space for BAT 19; verify profile depth before ordering.
• Examine Record’s forthcoming “RTR 24” brushless drive, which promises 30 % energy savings and native Modbus TCP.
• Evaluate IoT retrofits such as Opendoor‑Cloud or Dormakaba “Exivo”, comparing cybersecurity certifications (IEC 62443‑4‑2).
• Study the impact of the new EU Radio Equipment Directive delegated act (cyber‑security requirements from Aug 2024) on legacy controllers like STM 21.
Record STM 21 is the legacy yet widely deployed control module that drives Record System 20/21 automatic sliding doors. It manages motor motion, safety sensors, user modes and diagnostics, operating on 24 V active‑HIGH logic. Despite newer platforms, STM 21 remains essential for maintenance and retrofits; installers must observe EN 16005, Machinery Directive and local fire‑code requirements when replacing or programming the unit.
