ABB 3HNA024941-002 Teach Pendant – IRB Paint Series

ABB 3HNA024941-002 Paint Teach Pendant: Operator Interface Architecture for IRB Paint Robot Systems

The ABB 3HNA024941-002 is the dedicated operator teach pendant engineered for ABB’s IRB paint robot platform, interfacing directly with the IRC5 Paint Controller. Within a spray automation cell, the teach pendant functions as the primary human-machine interface (HMI) node — it is the physical layer through which process engineers define robot trajectories, configure I/O states, monitor real-time axis feedback, and execute program verification routines. Unlike general-purpose pendants, the 3HNA024941-002 is purpose-built for paint process environments: its enclosure, connector sealing, and firmware stack are all optimized for the chemical exposure, humidity variance, and electrostatic discharge (ESD) conditions inherent to automotive and industrial coating lines.

In a typical IRB 5400 or IRB 5500 paint cell, the teach pendant connects to the IRC5 Paint Controller via a dedicated pendant cable with a locking bayonet connector. Communication between the pendant and the controller runs over a proprietary serial bus protocol, delivering low-latency bidirectional data exchange — axis position data, alarm states, program counters, and I/O maps are refreshed at the controller’s task cycle rate. This architecture ensures that the operator’s view of the robot state is synchronized with the actual servo loop execution, not a polled approximation. For paint process engineers, this matters: a 10 ms discrepancy between displayed position and actual TCP position during path verification can translate to visible coating defects at production speed.

The 3HNA024941-002 pendant supports ABB’s RobotWare Paint software environment, which extends standard RAPID programming with paint-specific instructions: PaintL, PaintC, and GunOn/GunOff sequencing. Through the pendant interface, operators can adjust atomizer speed, shaping air pressure setpoints, and gun trigger timing without leaving the teach mode — parameters are written directly to the RobotWare Paint process data structures in the controller memory. This eliminates the need for a separate PC-based configuration session during line commissioning or recipe changeover.

Real-time Stock & RFQ: [email protected] | WhatsApp: +86 18359268345

Technical Parameters

Hardware Logical Analysis

The 3HNA024941-002 pendant’s hardware design reflects ABB’s understanding that a paint robot teach pendant operates in one of the most electrically hostile environments in industrial automation. Spray booths generate continuous electrostatic fields from high-voltage atomizers (typically 60–90 kV for electrostatic rotary bell applicators), and the pendant must maintain signal integrity across its internal bus while physically present in this field.

EMC and ESD Architecture: The pendant chassis uses a multi-layer shielding approach. The outer housing is constructed from a conductive polymer composite that provides a Faraday cage effect, attenuating external electrostatic fields before they reach the internal PCB stack. Internal signal lines between the display controller, the main CPU board, and the pendant bus interface are routed on impedance-controlled PCB layers with ground plane isolation between signal and power domains. Transient voltage suppression (TVS) diodes are placed at all external connector interfaces — pendant cable, USB service port, and emergency stop circuit — to clamp ESD events to safe levels within nanoseconds.

Emergency Stop Circuit: The E-stop on the 3HNA024941-002 is implemented as a dual-channel hardwired safety circuit, independent of the pendant’s main CPU. Both channels must be in the closed state for the robot to remain in motion-enabled status. A single-channel fault — whether from a broken wire, connector corrosion, or button mechanism failure — drives the IRC5 safety relay to the open state within the controller’s safety response time. This design satisfies IEC 62061 SIL 2 and ISO 13849-1 PLd requirements for robot safety stop functions.

Pendant Bus Protocol: Data exchange between the pendant and the IRC5 controller uses a time-division multiplexed serial protocol. The controller is the bus master; the pendant responds within a fixed time slot. If the pendant fails to respond within the timeout window — due to cable fault, connector dropout, or internal pendant failure — the controller logs a pendant communication error and halts program execution. This fail-safe behavior prevents the robot from continuing autonomous operation with a disconnected or malfunctioning operator interface.

Firmware Architecture: The pendant runs an embedded RTOS that manages the touchscreen rendering pipeline, RAPID program display, and bus communication stack as separate task threads with defined priorities. The bus communication task holds the highest priority, ensuring that operator inputs (jogging commands, program start/stop) are transmitted to the controller without being delayed by display refresh operations.

System Integration Benefits

• Direct RobotWare Paint parameter access: Atomizer speed, shaping air, and gun trigger parameters are editable from the pendant during teach mode, reducing recipe changeover time without requiring a PC connection to the controller.
• Synchronized axis position display: Position data is sourced directly from the IRC5 servo loop feedback, not a polled register — operators see actual TCP position at controller task cycle resolution during path verification.
• Integrated alarm diagnostics: The pendant displays IRC5 error codes with plain-language descriptions and recommended corrective actions, reducing mean time to repair (MTTR) during production stoppages.
• Dual-channel E-stop for SIL 2 compliance: The hardwired safety stop circuit satisfies IEC 62061 SIL 2 and ISO 13849-1 PLd, supporting integration into safety-rated cell designs without additional external safety relays on the pendant circuit.
• ESD-rated enclosure for booth presence: The pendant can be carried into the spray booth during manual teach operations without requiring the atomizer to be de-energized, maintaining production schedule flexibility.
• RAPID program navigator: Operators can browse, edit, and step-execute RAPID modules directly from the pendant, enabling on-machine program debugging without transferring files to an external PC.
• I/O monitoring panel: Real-time digital and analog I/O state visualization allows technicians to verify gun trigger signals, conveyor interlocks, and zone safety inputs during commissioning without a separate I/O diagnostic tool.
• Fail-safe bus timeout behavior: A pendant communication dropout triggers an immediate controller halt, preventing unattended robot motion — a critical safety behavior in multi-robot paint cells where personnel access zones overlap with robot work envelopes.

Quality Assurance & Global Logistics

Every ABB 3HNA024941-002 unit supplied by siemensplc.com is sourced through verified industrial channels and undergoes a structured pre-shipment inspection protocol. Physical inspection covers housing integrity, connector pin condition, cable locking mechanism function, and label authenticity against ABB OEM reference data. Where test equipment is available, units undergo power-on verification and pendant bus communication testing against a reference IRC5 controller.

All units are shipped from our warehouse in Xiamen, China, with export documentation including commercial invoice, packing list, and certificate of origin prepared for international customs clearance. Freight options include DHL Express (2–5 business days to most destinations), FedEx International Priority, and sea freight consolidation for volume orders. Typical dispatch lead time from order confirmation is 1–3 business days for in-stock units.

A 12-month warranty applies from the date of shipment. Warranty coverage addresses manufacturing defects and component failures under normal operating conditions. Our technical team provides post-sale support for installation questions, compatibility verification, and fault diagnosis — reachable by email and WhatsApp during business hours (UTC+8).

Contact Information

Email: [email protected]
WhatsApp: +86 18359268345
Web: siemensplc.com
Location: Xiamen, China
© 2026 siemensplc.com. All rights reserved.