AMCI SMD23-240 Посібник користувача - Сторінка 5
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ADV ANC ED
MIC RO CON T RO L S INC.
SMD23 Motor and Drive Specifications (continued)
Digital Inputs
Three opto-isolated differential inputs:
Step – Velocity/position command
Direction – Direction Control
Disable – Disables motion and disables current to motor
Type of input
5V TTL logic
Input Current
15mA max
Input Connector
AMCI Part # MS-8P, provided (Phoenix part # MC 1.5/8-ST3.81)
8 screw terminal type – 16 AWG max.
Programming Communications
Interface – RS232
Programming Interface – AMCI SPI Interface software, Windows 2000/XP supported
Interface Cable – AMCI CSMD-5 5 ft serial cable (optional)
Notes on Temperature Specifications
The maximum temperature of the SMD motor must not exceed 100
temperature of the SMD drive heat sink must not exceed 85
are exceeded the SMD thermal protection circuit will shut down the drive.
To prevent overheating a few factors must be considered:
• Operating motor current - configure just as much current as needed to provide the
torque for the specific application.
• Idle current: This is the amount of current that the drive provides to the motor when
motion is not occurring. To maximize motor efficiency and motor cooling, set the idle
current to the minimum value necessary to provide the required holding torque.
• Supply voltage: In general the higher supply voltage leads to higher switching losses
and higher heat generation in the motor-drive system.
• Motor mounting: If possible, mount the motor in such a manner that the mounting
hardware acts as a heat sink.
• Heat Sink position: Mount the motor so that the heat sink fins are vertical. This will allow
for free air flow between the fins. Maintain spacing around the SMD of one inch.
20 Gear Drive, Plymouth Industrial Park, Terryville, CT 06786
Tel: (860) 585-1254
Fax: (860) 584-1973
SMD-23 Integrated Stepper Drive & Motor
Web: www.amci.com
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C(212
F) and maximum
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C(185
F). If these temperatures
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