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| 型号： | OMC510 |
| 英文描述： | DSP-Based Three-Phase Brushless DC Motor Controller(基于DSP的三相无刷直流电机控制器) |
| 中文描述： | 基于DSP的三相无刷直流电动机控制器（基于数字信号处理器的三相无刷直流电机控制器） |
| 文件页数： | 7/8页 |
| 文件大小： | 52K |
| 代理商： | OMC510 |
OMC510
Rev 03 09/27/00
205 Crawford Street
Leomnster MA 01453
Phone: 978 534 5776
Fax: 978 537 4246
www.omnirel.com
7
APPLICATION NOTE
SETUP
The OMC510 is a DSP-based motor controller providing speed control proportional to the command input
voltage. This command can be provided by way of either an analog or a digital interface. The Figure 1--
Interconnection Diagram is representative of a typical configuration.
The OMC510 provides two micro-miniature 1.25mm headers (J1 and J2) for easy interface to command and
control (J1) and to the Hall effect sensors (J2). To mate with the headers, reference Molex receptacle
housing part numbers 51021-1300 (mate to J1) and 51021-0600 (mate to J2), and crimp terminal series
50058. An accessory cable for command and control, including an in-line isolated RS-232 interface, can be
provided. Consult the factory for details. To interface with the 28V power supply and the motor phase leads,
plated through holes, sized to accommodate up to #18 AWG wire, are provided for solder termination.
OPERATION
The OMC510 is a DSP-based motor controller providing speed control proportional to the command input
voltage (0 to 3V). The OMC510 is configured for trapezoidal commutation via Hall effect sensor feedback.
In this configuration, the Hall effect sensor outputs provide discrete absolute rotor position for commutation.
The Hall effect sensor outputs are fed into the control port, level shifted onboard from 15V to 5V, then fed
directly into the DSP. Based on this information, velocity is determined.
The OMC510 requires a single ended 28V supply. The logic voltage supplies (15V and 5V) are derived
onboard. The OMC510 will accommodate either an analog or digital command input. For the latter, a serial
port is provided onboard to interface with an isolated RS-232 communications port. The OMC510 provides
direction control as well as current limit for over-current protection. The Direction input is set by the user as
either a logic high or a logic low, and the current limit is set onboard. If the user interface requires a system
reset, a logic low is required at the Reset input to initiate a hardware reset. Otherwise, a 10k pull-up resistor
is provided onboard.
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