Newport New Focus 8703, Руководство пользователя

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1 Introduction
1.1 Introduction
The Model 8712 & Model 8703 Picomotor drive modules are ideal drivers
for OEM Picomotor systems. Model 8712 is designed to be mounted on a
printed circuit board (PCB). Model 8703 incorporates the Model 8712 with a
PCB for quick and easy integration into your system. Key features and
specifications are:
•
12V nominal power supply.
•
Choice of 4 industry-standard analog and optically coupled digital
motion-control interfaces.
•
Idle control input for reduced power consumption and interlock.
•
No motion caused by turn on/off transients.
•
Instantaneous direction reversal.
•
Continuous operation at up to 1 kHz in a still-air 55 ºC environment.
•
2 kHz maximum pulse rate at 25 ºC, intermittent operation at higher
temperatures.
•
Over-temperature auto protection
•
Threaded holes on top and lateral sides for easy mounting
Step/direction, quadrature, and ±10V linear or bang-bang voltage control
interfaces set the velocity and direction of a Picomotor connected to the drive
module. Two mode inputs are used to select one of the four control interfaces
when power is applied to the module. An optically isolated LIDLE input
turns off the high-power circuits to reduce power consumption to 0.8 W
(typical). The LIDLE input also disables Picomotor pulse generation.
1.2 Safety
Voltages of up to 130 V are accessible inside the driver chassis, mounts,
Picomotors, and the interface board. DO NOT operate the units with the
driver or mount covers removed. If the wire of a mount or Picomotor is
damaged, discontinue use and return it for repair. If the device is used in a
manner not specified by New Focus, the protection provided by the device
may be impaired.