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National Instruments Corporation
21
Getting Started with the NI 9502 and AKM Motors
Complete the following steps to connect the NI 9502 to the NI AKM motor.
1.
Connect the motor connector on the cable to the NI AKM motor connector.
2.
Connect the motor Phase U, Phase V, and Phase W, and COM wires to the NI 9502.
3.
Connect the feedback connector on the cable to the NI AKM feedback connector.
4.
Connect the Hall 1, Hall 2, Hall 3, and COM wires from the Halls portion of the cable to the
NI 9502.
5.
Connect the encoder Phase A/A–, Phase B/B–, and Index/Index– signals, and the +5 V and COM
wires from the encoder portion of the cable to the NI 9411 module.
Software Installation and Configuration
This section covers installing and configuring the software for the NI 9502 servo drive module. It
assumes that all required software from the
section is installed.
Step 1: Install Software on and Configure the NI RT Controller
Complete the following steps to configure the controller and install software on it.
1.
Launch Measurement & Automation Explorer (MAX) on the development computer by clicking
the MAX icon on the desktop, or by selecting
Start»All Programs»National Instruments»
Measurement & Automation
.
2.
Select the controller under
Remote Systems
in the
Configuration
pane. If you do not see the
controller, you may need to disable the firewall on the development computer.
3.
Verify that the
Serial Number
in the
Identification
section matches the serial number on the
device.
4.
If you do not want to format the disk on the controller, eliminating all installed software and files,
power on the controller and skip to step 12.
5.
Set the
Safe Mode
switch on the controller to the
On
position.
Table 8.
NI 9502 to AKM Feedback Cable Screw Terminal Lead Descriptions (Halls Portion)
NI 9502
Connection
Wire Color
Signal Name
Signal Description
4
Red
Hall 1
Hall Effect sensor 1.
5
Green
Hall 2
Hall Effect sensor 2.
6
White
Hall 3
Hall Effect sensor 3.
7
Black
COM
Hall Effect sensor COM.
—
Clear
Drain
Connected to the ground of the Hall
Effect sensor case inside the NI AKM
motor. NI recommends connecting this
drain wire to the COM terminal on the
NI 9502; some applications may find it
beneficial to disconnect the drain wire
from the NI 9502 to improve EMC
immunity or emissions.
