AB5 and AB51 Drivers User Manual
AB5/AB51 Operating
Nanomotion Ltd.
22
3 AB5/AB51 Operating
Operation Modes
3.1
Both Enable and Motor_Connected inputs must be active for operation,
regardless of the operation mode.
The AB5/AB51 can be operated in one of the three operation modes listed
below:
•
Velocity (AC) Mode:
the motor is driven continuously.
•
Step Mode:
the driver output is Hardware turned off and on, in predefined
intervals of 1/16 sec every 1/2 sec, thus driving the motor in discrete steps.
•
Brake_On Mode:
while in Velocity Mode, turns on the holding force.
Velocity Mode Operation
3.1.1
In this operation mode, the motor is driven continuously by applying
the analog command voltage (± 10 V) using a relevant interface
device (joystick or motion controller).
This mode is driver's default operation mode.
Step Mode Operation
3.1.2
In this operation mode, the driver output to the motor is turned on and
off for fixed time intervals, defined in the hardware, as follows:
•
ON phase - 1/16 second
•
OFF phase - 0.5 second
The amplitude of the output corresponds to the analog command input
value and thus determines the speed of the motor.
To enable the Step Mode:
short pin 16 (of the I/O port connector) to
ground (refer to
Table
8).
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