Digital multi-channel piezo motor servo controller
Channels from 2 to 4 are available as request, supporting high-performance closed-loop servo control for PMNL series piezo motors of YiNGUAN Company, and provide multiple motor control modes, including full-step mode, analog drive mode, closed-loop control mode.
High precise sensor interface
The controller provides high precise linear scale signal input interface, supports incremental ABZ type and absolute Biss-C type.
Digital communication control
The controller provides RS-485 communication interface, supports Modbus RTU protocol, and the efficient and multi-function command set can meet the high-performance motion control of piezo motors and real-time monitoring of the driver status.

| Basics | Unit | B-54x.3B | B-54x.3C | 
| Function | Multi-channel micro-step motor servo drive controller, closed loop with grating scale | ||
| Motor Channels | 2~4 | ||
| Output voltage | V | -250~+250 | |
| Peak power / channel | W | 45 | |
| Average output power / channel | W | 15 | |
| Peak current / channel | mA | 180 | |
| Average output current / channel | mA | 60 | |
| Interfaces and operations | |||
| Communication interface | RS-485 / Modbus RTU | ||
| Motor interface | HD-15(female connector) | ||
| Sensor interface | DB-15(female connector) | ||
| Sensor type | Incremental scale (ABZ) | Absolute scale (BiSS C) | |
| Command set | Modbus Instruction set | ||
| Support function | Point-to-point movement | ||
| Miscellaneous | |||
| Operating voltage | V | AC 220 | |
| Max. power consumption | W | 280 | |
| Operating temperature range | ℃ | 5~50 | |
| Dimensions | mm×mm×mm | 482.6×88.1×295.5 | |
| Net weight | Kg | 12 | |
B-54x series piezo motor servo controller
| 2-channel PMNL piezo motor servo controller, 4U chassis, incremental linear scale closed loop, RS-485 | 
| 2-channel PMNL piezo motor servo controller, 4U chassis, absolute linear scale closed loop, RS-485 | 
| 3-channel PMNL piezo motor servo controller, 4U chassis, incremental linear scale closed loop, RS-485 | 
| 3-channel PMNL piezo motor servo controller, 4U chassis, absolute linear scale closed loop, RS-485 | 
| 4-channel PMNL piezo motor servo controller, 4U chassis, incremental linear scale closed loop, RS-485 | 
| 4-channel PMNL piezo motor servo controller, 4U chassis, absolute linear scale closed loop, RS-485 |