ยี่ห้อ: เอบีบี โจกับเซฟตี้ (originally Sweden Jokab, integrated into ABB machinery safety product line)
ชื่อรุ่นเต็ม: RT9 24DC, Ordering Code 2TLA010029R0000, ยกเลิก, belongs to RT series general-purpose รีเลย์ความปลอดภัย
✅ Core Specifications
แรงดันไฟฟ้า: 24กระแสตรง
ความกว้างของโมดูล: 22.5มม (การติดตั้งราง DIN)
ผลลัพธ์ด้านความปลอดภัย: 2NO safety relay contacts
ระดับความปลอดภัย: ISO13849-1 Cat.4 / พีแอล อี; IEC61508 SIL3
ประเภทอินพุต: Configurable for single-channel / dual-channel wiring; compatible with contact-type safety devices or OSSD outputs (ม่านแสงนิรภัย)
รีเซ็ตโหมด: รีเซ็ตด้วยตนเอง / รีเซ็ตอัตโนมัติ, selectable via external wiring
อุณหภูมิแวดล้อม: -10℃ ~ +55 ℃
เทอร์มินัล: ขั้วต่อสกรู, front-panel LED status diagnostic indicators
📌 Applicable Monitored Devices
E-Stop pushbuttons
Safety gate interlock switches
ม่านแสงนิรภัย / safety light barriers
เสื่อนิรภัย, safety edges
Enable switches, two-hand controls, area protection; can also be used as safety output expansion module
🔧 4 Standard Input Configurations (selectable by wiring)
- Dual-channel 2NO (+24วีเอาท์พุต): Cat3 / พีแอล ดี
- Dual-channel 1NO+1NC: Cat4 / พีแอล อี, with cross-wire short-circuit detection
- สองช่องทาง, one +24V and one 0V signal: Cat4 / พีแอล อี, designed for OSSD light curtains
- Single-channel mode (simple safety circuit)
⚠️ Discontinuation & โซลูชั่นทดแทน
RT9 (2TLA010029R0000) is end-of-life, no new production available, only stock or second-hand spare parts remain.
ABB new generation replacement: Sentry SSR10 (Ordering Code 2TLA010050R0000), ใช้งานได้จริง, also PL e / ซิล3, terminals and logic are mostly directly interchangeable.
📎 Troubleshooting Guide for RT9
- No output after power-on: Check input circuit wiring, reset circuit and verify LED status
- Cannot reset after safety input triggered: Confirm consistency of dual-channel signals, check for wire short-circuit or open circuit
- Random safety output dropout: Prioritize inspection of safety device contacts, cross-channel short-circuit monitoring and earthing interference
- Degraded output contacts: Mechanical wear of internal relay contacts, a common ageing issue for legacy RT series
ABB RT9 (2TLA010029R0000) Safety Relay Engineering Application Cases
RT9 is a compact general-purpose safety relay, 22.5mm DIN rail mount, พีแอล อี / ซิล3 / แมว.4, supporting single/dual channel, manual/automatic reset. Mainly used for safety circuit monitoring of standalone machines, widely deployed in packaging, machine tool, conveyor and automation workstations; End-of-life, mostly used for spare part maintenance and retrofitting of legacy equipment.
กรณี 1: CNC Machining Center [Safety Gate Interlock + Dual-Channel E-Stop]
สภาพการทำงาน
Vertical machining center with dual-channel safety gate switches on protective doors, 2 sets of dual-channel E-Stop buttons mounted on machine frame. When operators open the door for tool change or internal cleaning, spindle and feed drive power must be cut off. Manual reset is mandatory after door closure; automatic startup is prohibited.
RT9 Wiring Scheme
- อินพุตสองช่องสัญญาณ: 1NO+1NC contacts of safety gate switch connected to IN1, IN2 dual-channel, cross-wire short circuit detection enabled, meeting Cat.4 PL e
- รีเซ็ตโหมด: Manual controlled reset, reset pushbutton wired to S34 terminal
- ผลลัพธ์ด้านความปลอดภัย: 13-14, 23-24 two NO contacts wired in series into drive contactor coil circuit; Y14 auxiliary status contact connected to PLC DI for HMI display of [Door Open / Safety Circuit Fault]
- Feedback loop: NC auxiliary contact of main contactor wired back to RT9 test input, to monitor contactor contact welding fault
ลอจิกความปลอดภัย
Protective door opened / E-Stop pressed → RT9 safety contacts open → spindle and feed power cut off, machine locked
ประตูปิดแล้ว + E-Stop reset → reset button must be pressed to re-energize RT9 and enable machine startup
Applicable Industry: เครื่องมือกล, ซีเอ็นซี, อุปกรณ์ตัด
หมายเหตุสำคัญ
Personnel can access the guarded zone, automatic reset is strictly prohibited. Dual-channel wiring enables wire break and short-circuit fault detection.
กรณี 2: Automatic Packaging Line [OSSD Safety Light Curtain Monitoring]
สภาพการทำงาน
Horizontal packaging machine with safety light curtain (solid-state dual-channel OSSD output) installed at feeding inlet, preventing operators from inserting hands into roller hazard zone. Machine runs normally when curtain is unobstructed; immediate stop upon curtain obstruction. Automatic recovery is permitted after obstruction removal (risk assessment approves auto-reset).
RT9 Wiring Scheme
- Input configuration: Dual-channel OSSD mode, two OSSD signals from light curtain connected to IN1, IN2
- รีเซ็ต: รีเซ็ตอัตโนมัติ, S34 shorted, auto-recovery after obstruction removed
- RT9 safety contacts cut off main drive contactor of packaging machine; Y14 auxiliary signal sent to PLC for curtain trigger alarm logging
ลอจิกความปลอดภัย
Hands / material block light curtain → OSSD signals de-energized → RT9 safety outputs open → roller stops. After obstruction cleared and curtain restored, RT9 auto-resets and machine restarts.
Applicable Industry: บรรจุภัณฑ์, สายลำเลียง, Assembly Workstations
หมายเหตุสำคัญ
Special OSSD wiring for light curtains, incompatible with ordinary contact mode. Automatic reset can only be adopted when risk assessment confirms no trapped personnel hazard.
กรณี 3: Conveyor Line [Combined Safety Mat + Safety Edge Protection]
สภาพการทำงาน
Robot workstation in sorting conveyor line with safety mats laid on floor and safety edges mounted on moving guard frame. Robot and conveyor motors shut down immediately when personnel step into hazard zone or touch equipment edge safety edge.
RT9 Wiring Scheme
- อินพุตสองช่องสัญญาณ: Dual-channel contacts of safety mat and safety edge wired in series to RT9 dual-channel input
- รีเซ็ต: รีเซ็ตด้วยตนเอง, preventing automatic equipment restart after personnel leave
- RT9 safety outputs cut off robot power circuit; LED indicators enable fast fault localization (input open/short circuit / activation)
Applicable Industry: การเรียงลำดับโลจิสติกส์, เวิร์กสเตชันหุ่นยนต์, สายการผลิตอัตโนมัติ
กรณี 4: Small Equipment Access Hatch (รีเซ็ตอัตโนมัติ)
สภาพการทำงาน
Small access hatch on side of fans and drying equipment. Hatch dimension is small; personnel cannot enter hazard zone, only accidental opening by tools will occur. Fan stops when hatch opens, automatically restarts after hatch closure.
RT9 Wiring Scheme
Dual-channel gate switch, wiring configured for automatic reset, S34 shorted. Risk assessment confirms small hatch with no personnel access risk.
สำคัญ: Automatic reset is forbidden for large protective doors or guards where personnel can enter, violating ISO13849 safety standards.
กรณี 5: Standalone E-Stop Circuit Retrofit (Legacy Equipment Spare Part Replacement)
สภาพการทำงาน
Safety relay failure on legacy injection molding machine, original model discontinued. Stock RT9 selected for replacement, original dual-channel E-Stop buttons retained.
Retrofit Key Points
- RT9 22.5mm width fits existing DIN rail directly
- Original dual-channel E-Stop contacts connected to IN1/IN2, manual reset button retained
- NC feedback contact added to original main contactor and wired to RT9 test loop to realize contactor welding monitoring and improve safety level
- Y14 auxiliary contact connected to original alarm indicator lamp
หมายเหตุ: RT9 is not recommended for new projects; new generation replacement ABB Sentry SSR10.
RT9 Selection & Wiring Summary
- Reset Selection Rules
Personnel-accessible guarded area: Mandatory manual controlled reset
Small hatches with no personnel access and approved risk assessment: รีเซ็ตอัตโนมัติ
- Input Type vs Configuration
Contact-based safety gates, อี-สต็อป: Dual-channel 1NO+1NC, การตรวจจับการลัดวงจร, แมว.4
OSSD safety light curtains: Dedicated dual-channel OSSD mode
เสื่อนิรภัย, safety edges: Dual-channel contact input
- เอาท์พุต: 2 sets NO safety contacts, max 6A, used to break power contactor coil circuit; Y14 is status auxiliary contact only for PLC signal acquisition, cannot be used for safety stop circuit
Common Field Faults (Frequent RT9 Project Issues)
- Safety circuit fails to reset: Inconsistent dual-channel signals, การแตกหักของสายไฟ, poor contact contact, incorrect reset circuit wiring
- Spontaneous safety stop: Short between dual-channel cables, unshielded cables, strong electrical interference, cable insulation wear
- Failed contactor welding protection: NC feedback contact of external contactor not wired to RT9 test terminals
ABB Jokab Safety RT Series Safety Relay Full Model List (RT9 included, all discontinued)
RT series: Legacy general safety relay, ราง DIN, พีแอล อี / ซิล3, part number prefix 2TLA0100, all end-of-life; new generation replacement Sentry SSR/BSR/TSR series
RT Series Main Model Table
| ชื่อรุ่น | รหัสการสั่งซื้อ | จัดหา | ผลลัพธ์ด้านความปลอดภัย | ความกว้างของโมดูล | คุณสมบัติที่สำคัญ |
| RT6 24DC | 2TLA010026R0000 | 24กระแสตรง | 3NO +1NC | 45มม | Multi-output, supports E-Stop/safety gate/light curtain, with feedback monitoring |
| RT6 24AC | 2TLA010026R0200 | 24VAC | 3NO +1NC | 45มม | รุ่นแหล่งจ่ายไฟ AC, otherwise same as RT6 DC |
| RT7 24DC | 2TLA010027R0000 | 24กระแสตรง | 3เลขที่ | 45มม | Simplified RT6 with 3 ความปลอดภัย ไม่มีการสัมผัส |
| RT9 24DC | 2TLA010029R0000 | 24กระแสตรง | 2เลขที่ | 22.5มม | ชนิดกะทัดรัด, the model you inquired; supports contact + OSSD light curtain, manual/automatic reset |
| JSBRT11 24DC | 2TLA010025R0000 | 24กระแสตรง | 7NO +2NC | 45มม | RT series multi-output expansion unit, multiple safety contacts |
| JSBRT11 115AC | 2TLA010025R0400 | 115VAC | 7NO +2NC | 45มม | 115V AC powered JSBRT11 |
Other Legacy Jokab Safety Relay Family (often paired with RT series for selection)
บีที / JSB belong to ABB Jokab legacy product line, also discontinued spare parts
| BT50 | 2TLA010030R0000 | 22.5มม, wired directly in main E-Stop circuit |
| BT50T | 2TLA010030R0100 | BT50 time-delayed version |
| BT51 | 2TLA010031R0000 | Improved BT50 |
| BT51T | 2TLA010031R0100 | Time-delayed BT51 |
| JSBR4 | 2TLA010022R0000 | Two-hand control dedicated safety relay |
| JSBT4 | 2TLA010023R0000 | Two-hand control with time delay |
| JSBT5 | 2TLA010024R0000 | Dedicated for safety mats / safety edges |
| JSBT5T | 2TLA010024R0100 | Time-delayed JSBT5 |
New Generation Sentry Replacement Series (for new projects, direct RT series replacement)
| New Series Model | รหัสการสั่งซื้อ | Corresponding Legacy RT Model |
| SSR10 24DC | 2TLA010050R0000 | Primary replacement for RT9, RT6 24DC |
| SSR10M | 2TLA010050R0100 | Wide voltage 85~265VAC/DC |
| BSR10 | 2TLA010040R0000 | BT50 replacement, output expansion module |
| TSR10 | 2TLA010060R0000 | Time delay function, replaces time-delayed JSBT |
RT Series Selection Key Points
- RT9 (2TLA010029R0000): 22.5mm narrow body, 2 ไม่มีการติดต่อด้านความปลอดภัย, most common for small standalone machines, compatible with OSSD light curtains, safety gates and E-Stop; limitation: fewer contacts, available mainly as spare stock for legacy systems.
- RT6: 45ความกว้างมม, 3NO+1NC, more output contacts, suitable for applications controlling multiple contactors.
- JSBRT11: Multi-output expansion, for large workstations requiring multiple power circuit disconnection.
- All RT series: Max Cat.4 / พีแอล อี / ซิล3; inputs support single/dual channel, wire break and short-circuit diagnosis, manual/automatic reset.
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