SD7540A Stepper Drive
20 Gear Drive, Plymouth Industrial Park, Terryville, CT 06786
page: 5
Tel: (860) 585-1254 Fax: (860) 584-1973 Web: www.amci.com
ADV ANC ED
MIC RO CON T RO L S INC.
Notes:
•
Maximum temperature of the SD7540A drive mounting plate must not exceed 85
o
C (185
o
F). If these temperatures are exceeded the SD thermal protection circuit will shut down the
drive.
•
Operating motor current - configure the minimum current needed to provide the torque for
your specific application. This will decrease the operating temperature of the SD7540 and
its attached motor
•
Idle current: This is the amount of current that the drive provides to the motor when motion is
not occurring. To maximize drive 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.
•
The SD7540A is designed to be mounted on a metal panel that will help dissipate heat. Any
metal surface larger than the SD7540A mounting plate, such as an enclosure wall, is
acceptable.
