Rockwell Automation 8720MC High Performance Drives Installation Manual - Manual (Page 48)

Publication 8720MC-IN001D-EN-P — December 2002
2-14 8720MC Connector Data
Registration Inputs
The 8720MC provides 2 registration inputs. One input is for +24V dc
operation and one is for +5V dc operation. The 8720MC can provide
+5V dc or +24V dc to be used with a switch type registration or orient
sensor. Both registration inputs can be used in a given application.
From a software perspective the registration inputs are used by the
8720MC software to capture a position within one microsecond of a
closure of the registration sensor. This can be used by the drive for
orienting to a registration sensor or used by a SERCOS motion
controller for probing or position registration. With a SERCOS motion
controller the registered position is returned to the motion controller
via the SERCOS link as a result of a Registration Procedure.
Input Power
The registration inputs are isolated and can use either the 8720MC
+5V dc or +24V dc power or customer supplied external +5V dc or
+24V dc. Figure 2.11 shows the connections required for the sensor
inputs when internal dc power is used. Terminals P4-4 and P4-8
provide isolated +5V dc power for use with the +5V dc registration
inputs and the A quad B output. This power is limited to 250 mA at 5V
dc +/- 10%.
Figure 2.11
Registration Interface Using 8720MC Internal Power
1
When using the 8720MC supplied +5V dc for the sensor input (P4-2), terminal P4-7 must be tied to P4-8. Do not
jumper when external +5V dc is used.
2
When using the 8720MC supplied +24V dc for the sensor input (P4-3), terminal P4-7 must be tied to P5-23. Do not
jumper when external +24V dc is used.
8720MC Drive
+24V dc for inputs
+24V dc return (P5-23)
+24V dc Registration Input
+5V dc Registration Input
Registration Input Common
(P4-3)
(P4-2)
(P4-7)
(P4-4)
(P4-8)
+5V dc
+5V dc return
24V dc
sensor
5V dc
sensor
(P5-22) 8720MC +24V dc
Registration Power
2
2
1
1