Description
TMEIC ARND-3110: Your No-Nonsense AC Drive for Basic Speed Control
You know how some drives overcomplicate things? The ARND-3110 skips the flash. From my experience visiting packaging plants and water treatment facilities, this little workhorse handles straightforward speed control for pumps, fans, and conveyors without demanding a programming degree. One thing I appreciate is how it gets installed before lunch – no wrestling with cryptic menus. A Midwest plastics plant recently swapped out their aging drives with these; they told me their maintenance crew actually likes the barebones keypad interface because it cuts troubleshooting time.
Key Features That Actually Matter
- Tool-free terminal covers – Change wiring in seconds without dropping screws into control cabinets. In most facilities I’ve seen, this shaves 15+ minutes off installation.
- Integrated EMC filter – Meets basic industrial noise standards right out of the box. You might notice fewer weird sensor glitches compared to drives needing external filters.
- Simple 7-segment display – No touchscreen headaches. Just rotate the dial to adjust parameters – perfect for dusty environments where touchscreens fail.
- Modbus RTU over RS-485 – Connects to most PLCs without hunting for obscure protocols. Typically gets your data flowing in under 30 minutes.
Technical Specifications
| Parameter | Details |
|---|---|
| Brand/Model | TMEIC ARND-3110 (0.4-7.5kW range) |
| HS Code | 8504.40.4500 (Static converters for motor speed control) |
| Power Requirements | 3-phase 380-480V AC ±10%, 50/60Hz |
| Dimensions & Weight | 120 x 200 x 150mm (WxHxD), 1.8kg – Fits standard 19″ cabinet rails |
| Operating Temperature | -10°C to +50°C (derate above 40°C) |
| Signal I/O | 3 digital inputs, 1 relay output, 0-10V analog input |
| Communication | RS-485 (Modbus RTU) |
| Installation | DIN rail or panel mount (vertical orientation recommended) |
Where It Shines (And Where It Doesn’t)
Honestly? Don’t expect servo-level precision. But for constant-torque apps like wastewater lift stations or warehouse ventilation – places where you just need reliable speed adjustment – it’s surprisingly robust. I’ve seen these run 24/7 in humid textile mills for years with minimal fuss. They struggle with rapid torque changes, so skip them for cranes or extruders. One brewery client uses them on CIP (clean-in-place) pumps; their tech says the sealed keypad survives high-pressure washdowns better than touchscreens.
Why Procurement Teams Keep Ordering These
- No hidden compatibility headaches – Works with Siemens, Rockwell, and Mitsubishi PLCs using standard Modbus.
- TMEIC’s 365-day warranty actually covers field failures (unlike some brands that void it for “improper environment”).
- You’ll save about 20% versus name-brand equivalents without sacrificing core reliability – crucial for budget-conscious retrofits.
- Their US tech support answers the phone before 4 rings. Tried it last Tuesday – refreshing.
Installation & Maintenance Reality Check
Mount it vertically with 50mm clearance top/bottom – horizontal mounting traps heat. Skip the fancy cabinet; NEMA 1 is fine if you keep ambient temps under 45°C. One caveat: those terminal blocks? Tighten to 0.6 Nm exactly. Overtighten and you’ll crack the housing (learned this the hard way at a dairy plant). For maintenance: blow out dust every 3 months, check firmware updates annually, and replace the DC bus capacitor after 7 years. Simple.
Ordering & Peace of Mind
When you order, we lock in pricing with 50% upfront. In-stock units ship in 1 week via your choice of FedEx/UPS/DHL – no “customs hold” surprises since we handle HS code 8504.40.4500 paperwork. Worst-case scenario? It takes 4 weeks for special orders, but 90% ship faster. Full payment clears before truck rolls. Oh, and that 365-day warranty? Covers labor too if you use TMEIC-certified techs.
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