The Delta CTA series timer/counter/tachometer operating manual explains features, specifications, wiring, settings, and usage for models CTA4000A and CTA4100A.
The CTA series combines a timer, counter and tachometer in one unit, offering multiple functions such as timing, counting, speed measurement, mixed timer‑counter mode, and totalizing. It provides a 12 V power input for external sensors, selectable NPN or PNP input types, and both relay and crystal outputs that can operate simultaneously. The device features a dual‑row six‑digit LCD and DIP‑switch configuration for parameter setting.
The manual details panel layout, physical dimensions, wiring terminal assignments, factory default values, and DIP‑switch settings. It includes functional parameter tables for each mode, default timing values, output pulse widths, and guidance for connecting the unit to external equipment such as encoders and PLCs. Application examples, such as length measurement for cutting machines, are also provided. This manual is written in Chinese.
| Power input voltage | AC 100‑240 V, 50/60 Hz |
|---|---|
| Power consumption | < 10 VA |
| External sensor supply | 12 V DC ±10 % 100 mA |
| Input signal type | PNP (voltage) or NPN (non‑voltage) |
| Relay output rating | AC 250 V, 5 A |
| Operating temperature range | 0 °C to ~ 50 °C |
| Storage temperature range | -20 °C to +65 °C |
| Display | Dual‑row six‑digit LCD |
The device accepts voltage input (PNP) and non‑voltage input (NPN).