1.1 Overview

1.2 Basic Specifications

• Model Number: JANCD-PW02 (also referenced as JANCDPWO2)

• Manufacturer: Yaskawa Electric / Motoman

• Applicable System: Motoman XRC Robot Controller (Arc Welding)

• Board Type: Analog Welding I/O PCB

• Revision: Rev B (most common)

• Status: Discontinued (Obsolete); available as used/refurbished units only

• Weight: Approx. 2.3 kg (5 lbs)

• Country of Origin: Japan

2. Electrical & Environmental Ratings

2.1 Power Supply

• Input Voltage: 24 VDC (supplied via controller backplane)

• Power Consumption: 140 W (max)

2.2 Environmental Conditions

• Operating Temperature: 0 °C to +40 °C

• Storage Temperature: -20 °C to +50 °C

• Relative Humidity: 5% to 80% RH (non-condensing)

• Maximum Altitude: 1,000 m (no derating required)

3. Functional Description

3.1 Core Functions

1. Arc Welding Closed-Loop Control

   • Real-time acquisition of welding current and voltage feedback signals.

   • Precise output adjustment to maintain consistent weld quality.

2. Analog I/O Interface

   • Compatible with standard welding power sources (e.g., Panasonic, OTC).

   • Analog signal range: 0–10 VDC (voltage) / 4–20 mA (current).

3. Welding Sequence Management

   • Controls arc start, wire feed, arc stop, and gas pre-flow/post-flow timing.

   • Executes user-defined welding logic sequences.

4. Fault Detection & Alarm

   • Monitors for overcurrent, overvoltage, arc loss, and abnormal welding conditions.

   • Sends alarm signals to the XRC main controller for diagnostics.

5. Internal Bus Communication

   • Exchanges control commands and operational data with XRC main/servo boards (e.g., JANCD-XEW01 / XEW02).

4. Compatibility & Installation

4.1 Compatibility

• Exclusive Compatibility: Motoman XRC series arc welding robot controllers only.

• Incompatible With: NX100, NXC100, DX series controllers, and Yasnac CNC systems.

4.2 Installation Instructions

1. Power Off: Disconnect all power to the XRC controller and wait for capacitor discharge (minimum 5 minutes).

2. ESD Protection: Wear an ESD wristband to prevent static damage to components.

3. Slot Placement: Insert the JANCD-PW02 into the dedicated welding slot on the XRC backplane.

4. Connector Securement: Firmly tighten all signal and power connectors.

5. Power On: Restore power and verify board recognition via the XRC teach pendant.

5. Maintenance & Safety

5.1 Maintenance Guidelines

• Periodic Inspection: Check connectors and wiring for wear or poor contact every 3 months.

• Cleaning: Use dry, lint-free cloth to remove dust; avoid liquid cleaners.

• Replacement: Only replace with identical model (JANCD-PW02, Rev B or equivalent).

5.2 Safety Precautions

• High Voltage Risk: Internal circuits retain high voltage after power-off; wait for full discharge before servicing.

• Qualified Personnel: Installation, maintenance, and repair must be performed by certified technicians.

• Static Sensitivity: Always use ESD protection when handling the board.

6. Troubleshooting

7. Disclaimer