| 250KG·CM STALL | 0.130S/60° NO-LOAD | 30V RATED |
| 405G WEIGHT | SteelGEARTRAIN | 360°TRAVELCustomizable |
Overview
The 9200 is a 250 kg·cm brushless servo on a 30 V rail. The case is 64 × 33 × 88.5 mm of CNC aluminium at 405 g, with the motor sitting under a milled fin stack and the gearbox in a sealed top block — you can see the split line in the photos.
Five ball bearings carry the gear stack and a 25T-φ11.8 mm spline takes the load, which is the size up from the 9.95 mm spline used on the 130 kg·cm models. The output arm is metal, and the electrical side ends in a socket rather than a flying lead, so the cable is specified by the machine builder.
This page covers the RS-485 / Modbus build: the same mechanics on a differential serial bus, which is what survives long cable runs and electrically noisy cabinets. Modbus keeps it compatible with industrial PLCs and HMIs.
Performance at each supply voltage
| Supply | No-load speed | Peak stall torque | Idle current | Stall current |
|---|---|---|---|---|
| 24 V | 0.290 s/60° (207 °/s) | 200 kg·cm (19.62 N·m / 2777 oz·in) | 200 mA | 5.5 A |
| 28 V | 0.200 s/60° (300 °/s) | 230 kg·cm (22.56 N·m / 3194 oz·in) | 300 mA | 7 A |
| 30 V | 0.130 s/60° (462 °/s) | 250 kg·cm (24.53 N·m / 3472 oz·in) | 400 mA | 8 A |
Control specification
| Item | Specification |
|---|---|
| Command signal | RS-485 (Modbus) |
| Amplifier | Digital controller |
| Dead band | 3 µs |
| Rotating direction | CCW (1000–2000 µs), customizable |
| Travel | 360°, customizable |
Mechanical specification
| Item | Specification | Item | Specification |
|---|---|---|---|
| Dimensions | 64 × 33 × 88.5 mm | Case material | Aluminium, CNC |
| Weight | 405 g | Geartrain | Steel |
| Bearings | 5 × ball bearing | Motor | Brushless |
| Output spline | 25T-φ11.8 mm | Horn | Metal |
| Lead / connector | Socket, cable sold separately | Mechanical limit | No limit |
| Operating temperature | −30 °C to 60 °C | Storage temperature | −30 °C to 70 °C |
| Ingress protection | Splash resistant (customizable) | Travel | 360°, customizable |
What’s in the box
- 1 × XQ-RS9200MB servo
- 1 × 7075 aluminium horn
- 1 × mounting screw pack
How to size it
The 250 kg·cm headline is a 30 V number. On a 24 V supply the same servo is a 200 kg·cm unit at 0.29 s/60° — a 20% torque loss for 2.2× the travel time per 60°. If the machine runs on 24 V batteries, size the linkage at 200 and keep the 250 as headroom.
Stall current is 8 A at 30 V, no-load 400 mA. That is a supply question, not a receiver question: budget 10 A per servo of headroom and keep the power pair out of the signal loom.
FAQ
What supply voltage does it need?
24 to 30 V DC. The headline 250 kg·cm is measured at 30 V; at 24 V the same servo delivers 200 kg·cm at 0.29 s/60°.
Is the cable included?
No. The servo ends in a socket and the mating cable is ordered separately in the length your machine needs.
Does it speak standard Modbus?
The sheet specifies RS-485 Modbus as the command signal. Ask for the register map and the supported function codes before you write the PLC program — they are not printed on the inspection sheet.
How long can the cable be?
RS-485 is differential, so tens of metres are routine at moderate bit rates. Terminate the pair at both ends and keep the power pair separate.
Other interfaces
Downloads
- XQ-RS9200MB inspection specification (PDF, 494 KB)
Torque, speed and current at each supply voltage, mechanical data, control specification, mounting dimensions. - 2D dimension drawing (image)
Mounting hole positions, case depth and overall height; the same drawing is inside the datasheet.
