Specifications

20 Gear Drive, Plymouth Ind. Park, Terryville, CT 06786
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31
CHAPTER 5
INSTALLING THE SD17063 REV B.
Installing the SD17063
Installing the SD17063 is broken down into six steps.
Step 1: Installing the Drive
Step 2: Connecting the Indexer
Step 3: Installing the Stepper Motor
Step 4: Connecting the Motor
Step 5: Grounding and Powering the System
Step 6: Testing the System
If the SD17063 is new to you, consider running the drive’s Self Test on a bench to familiarize yourself with
the drive before installing it. Information on using the Self Test can be found in Appendix C, TROUBLE-
SHOOTING, starting on page 53.
A Note On Grounding
Effective grounding of the stepper motor and SD17063 drive is critical to safe and proper operation.
The SD17063 must be connected to earth ground. Failure to properly ground the chassis
leaves the potential for severe electrical hazard and/or problems with normal operation.
The chassis ground connection of the SD17063 and the body of the motor are connected through the shield of
the motor’s cable. When installing the system, take steps to ensure that the earth grounds of the two are at the
same potential. Ideally, the motor and drive will be connected to the same ground bus.
Information on grounding the motor and SD17063 is given in the Grounding section chapter 4 on page 28,
along with the Mounting the Motor and Step 5: Grounding and Powering the System sections of this chapter
on pages 37 and 41 respectively.
Step 1: Installing the Drive
Selecting a Location
Like most stepper drives, the SD17063 needs to be installed in a NEMA enclosure to protect it from the fac-
tory environment. Most installations place the drive in the same cabinet as the indexer or other control logic
and run long cables to the motor. However, this type of installation can suffer from three problems.
1) The motor’s cable will carry a significant amount of current, and the longer the cable, the more power
will be lost to cable resistance. This will decrease the available torque from the motor.
2) The motor current is switched at 20KHz, which will generate a significant amount of electrical noise.
Therefore, EMI is a potential problem, especially if the motor cable is not properly installed.
3) In order to detect motor faults, the earth ground connections of the motor and the SD17063 must be
tied together. A long cable run between the indexer and motor increases the likelihood of a ground
loop.
To limit these problems, consider mounting the SD17063 in an enclosure that is as close to the motor as pos-
sible. The drive’s differential I/O is designed for long cable runs. Installing the SD17063 as close to the
motor as possible will limit the three problems listed above.
Dimensional Drawing
The dimensional drawing of the SD17063 is given on the following page. The drive is designed to be panel
mounted in one of two ways. Properly mounting the drive to a metal panel will allow a large amount of heat
to be dissipated by the panel. This will result in a lower operating temperature for the drive.
The preferred way of mounting the drive is by the four bolt holes on the back of it. They accept #10-32 bolts.
The maximum length of the bolt is based on the thickness of your mounting plate and is given in the figure. If
it is impossible to mount the drive this way, the second mounting option uses the mounting tabs at the top and
bottom of the drive. They accept #6 bolts, one at the top and two at the bottom.