B40A40 Datasheet, PDF (6/6 Pages) List of Unclassifed Manufacturers – BRUSHLESS SERVO AMPLIFIERS

B40A40 Series
TEST POINTS FOR POTENTIOMETERS: See section "G".
OPERATING MODE SELECTION:
These modes can be selected by the DIP switches according to the chart in the functional block diagram.
• Current mode
• Open loop mode
• Tachometer mode
• Hall velocity mode
• Encoder velocity mode
See section "G” for more information.
SET-UP:
See section "G" for engineering and installation notes.
CURRENT LIMIT ADJUSTMENTS:
These amplifiers feature separate peak and continuous current limit adjustments. Pot 2, the current limit potentiometer,
adjusts both peak and continuous current limit at the same time. It has 12 active turns plus 1 inactive turn at each end
and is approximately linear. Thus, to adjust the current limit turn the potentiometer counter-clockwise to zero, then turn
clockwise to the appropriate value.
In many applications it is sufficient to use only the DIP switches for current limit adjustments. SW3 reduces both peak
and continuous current limit by 50% when OFF. SW8 reduces only the continuous current limit by 50% when OFF:
SW8
ON
OFF
CONTINUOUS / PEAK CURRENT LIMIT RATIO
50%
25%
P1-9 is the input to the internal current amplifier stage. Since the output current is proportional to P1-9, the adjusted
current limit can easily be observed at this pin without connecting the motor. Note that a command signal must be
applied to the reference inputs to obtain a reading on P1-9. The maximum peak current value equals 7.25 V at this pin
and the maximum continuous current value equals 3.63 V at this pin. If SW3=ON, peak rated amplifier current = 7.25 V.
If SW3=OFF, ½peak rated amplifier current =7.25 V. Example: using the B40A40 with SW3=ON, 40A=7.25V and with
SW3=OFF, 20A=7.25V.
The actual current can be monitored at pin P1-8.
ORDERING INFORMATION:
Models: B40A40X
X indicates current revision letter.
TYPICAL SYSTEM WIRING: See section "G".
MOUNTING DIMENSIONS: See page F-15.
C-64