4-14 Power Wiring
MN766
4.17 Home (Orient) Switch Input
The Home or Orient function causes the motor shaft to rotate to a predefi ned home position. The homing function allows
shaft rotation in the drive forward direction only. The home position is located when a machine mounted switch or “Index”
pulse is activated (closed). Home is defi ned by a rising signal edge at Resolver expansion board terminal 8. The shaft will
continue to rotate only in a “Drive Forward” direction for a user defi ned offset value. The offset is programmed in Level 2
Miscellaneous Homing Offset P2308. The speed at which the motor will “Home” or orient is set in Level 2 Miscellaneous
Homing Speed P2307.
To use the internally generated index pulse for homing, no external connections are required. However, to use an external
index input jumper J3 on the resolver expansion board must be moved to External Index (sync) and a switch must be
connected to Index+ and Index-, shown in Figure 4-16.
4.17.1 External Index Jumper Position
Use the following procedure.
1. Remove all power from the control. Wait 5 minutes for bus capacitors to discharge. Open cover.
2. Place resolver expansion board jumper J3 in the desired position, see Figure 4-13.
3. Close cover. Turn power on. Be sure no errors are displayed.
4.17.2 Connections for External Index Signal
A machine mounted switch may be used to defi ne the Home position or “index” channel. A differential line driver output
from a solid state switch is preferred for best noise immunity. Connect this differential output to resolver expansion board
terminals 8 and 9.
A single ended solid-state switch or limit switch should be wired as shown in Figure 4-16. Regardless of the type of switch
used, clean rising and falling edges at pin 8 are required for accurate positioning.
Note:
Control requires dynamic brake hardware for Orient (Homing) function to work. Control will trip without dynamic brake
hardware installed. Size AA and B controls (“-E” suffi x) are shipped with factory installed dynamic brake hardware.
Figure 4-16 Typical Home or Orient Switch Connections
8
9
INDEX -
INDEX +
Resolver Board
Limit Switch (Closed at HOME)
Customer
Provided
+5VDC to
+12VDC
See recommended tightening torques in Table A-2.
Summary of Contents for VS1SD
Page 1: ...05 13 Installation Operating Manual MN766 VS1SD AC Servo Control...
Page 12: ...2 2 General Information MN766...
Page 16: ...3 4 Installing the Drive MN766...
Page 108: ...7 34 Parameter Descriptions MN766...
Page 114: ...8 6 Customizing Your Application MN766...
Page 128: ...9 14 Troubleshooting MN766...
Page 154: ...12 12 Monitor and RTC Description MN766...
