C98043-A1039-L4-07 | C98043A1039L407 | C98043A1039-L4-07
Siemens C98043‑A1039‑L4‑07 Board – Technical Specifications
1. Basic Information
- Brand / Model: SIEMENS, C98043‑A1039‑L4‑07
- Series: Dedicated board for SIMOREG 6RA24 / 6RA28 DC Drives
- Board Type: Pulse Trigger Board for thyristor / SCR rectifier bridge triggering
- Version Identification:
- L4: Rated trigger current class (4A level)
- 07: Hardware revision / batch number
2. Core Electrical Parameters
| Item | Specification | Description |
|---|---|---|
| Synchronous Voltage Input | 3‑phase 380VAC ±15%, 50/60Hz | Synchronized with main circuit |
| Trigger Output | 6‑channel double pulses (6 pulses per cycle) | For 3‑phase fully controlled bridge |
| Trigger Current | Rated 4A, peak 8A | Defined by L4 rating |
| Pulse Width | Adjustable 100μs–1ms | For different thyristors |
| Phase Shift Range | 0°–180° continuously adjustable | Full‑range voltage regulation |
| Trigger Accuracy | ±0.1° | Phase control error |
| Control Signal | 0–10V / 4–20mA analog | Speed / current reference |
| Auxiliary Power Supply | DC 24V ±10% | Board operating power |
| Power Consumption | ≤ 20W | Typical operating condition |
3. Functions & Interfaces
- Main Functions:
- Generates thyristor trigger pulses, controls rectifier bridge conduction angle, and achieves smooth DC voltage regulation
- Synchronous signal detection, phase loss / pulse loss protection, overcurrent / overvoltage fault blocking
- Suitable for full series 6RA24 / 6RA28 drives, supports 1Q / 4Q operation
- Interfaces:
- Synchronous voltage input terminal (X1)
- Trigger pulse output terminal (X2, 6 channels)
- Control signal / enable terminal (X3)
- 24V power and fault output terminal (X4)
4. Physical & Environmental
- Dimensions: Approx. 160mm × 100mm × 25mm (L×W×T)
- Mounting: PCB plug‑in / screw mounting, fits 6RA24 / 6RA28 enclosure
- Operating Temperature: 0°C ~ +50°C
- Storage Temperature: ‑40°C ~ +70°C
- Protection Class: IP00 (must be installed in control cabinet)
- Certifications: CE, UL industrial certification
5. Compatibility & Replacement
- Applicable Units: Full series 6RA24, 6RA28 DC drives (non‑reversible / reversible)
- Non‑interchangeable: Not compatible with trigger boards for 6RA70 / 6RA80 series (e.g. C98043‑A7004‑L4)
- Alternative Models: Same‑series C98043‑A1039‑L1‑xx (L1 = 1A level, lower power)
6. Typical Applications
- DC motor speed control systems (rolling mills, hoists, papermaking, printing, etc.)
- Trigger control for thyristor rectifier / inverter devices
- Core power drive unit for 6RA24 / 6RA28 DC drives









