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IM483 Operating Instructions Revision R032306
59
IM483 Operating Instructions Revision R032306
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+5 VDC
Step Clock
Oscillator
Direction Input
Direction In
Direction Out
Step Clock Input
Step Clock In
P1:4
P1:6
P1:8
Step Clock Out
P1:8
+
P1:27
P1:27
GND
GND
GND
Note: Optical isolation is defeated
as shown in this diagram.
S t e p C l o c k a n d D i r e c t i o n O u t p u t s
Another key feature offered by the IM483-34P1 is the non-isolated step
clock and direction outputs. These outputs will follow the step and
direction inputs. This allows for multiple drives to be cascaded, with the
primary drive receiving the step/direction signals from the control device,
and the drives connected to the step/direction outputs to follow the
primary. Figure A.4 illustrates a possible connection/application of these
outputs.
These outputs used in this configuration would allow the user to elec-
tronically gear or ratio the drives using the MSEL inputs. For instance,
if the resolution of the primary drive was set to 128 and the secondary
drive set to 256, when a move is commanded, the secondary drive will
move 1/2 the distance and velocity of the primary drive.
Figure A.4: Cascading IM483-34P1 Drives Using the Step/Direction Outputs
O p t i o n a l S c r e w Te r m i n a l I n t e r f a c e f o r P 1
The BB-34-4P is an optional breakout board that plugs directly into the pin
receptacle for P1. This gives the user a screw terminal interface to P1. For
drawings and details please see
Appendix D: Accessories, BB-34-4P.