28023 Parallax Inc, 28023 Datasheet - Page 2

• Manufacturer Part Number: 28023
• Description: CONTROLLER 16SERVO MOTOR CONTROL
• Manufacturer: Parallax Inc

Specifications of 28023

• Lead Free Status: Contains lead
• Main Purpose: Power Management, Motor Control
• Embedded: Yes, MCU, 8-Bit
• Utilized Ic / Part: BASIC Stamp® or Javelin Modules
• Primary Attributes: Servo Controller
• Secondary Attributes: 16 channels
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 28023PAR

Getting Started
Locate and remove the Parallax Servo Controller from its protective anti-static bag. It should closely
resemble the image shown in Figure 1.
Mount the Parallax Servo Controller using 4-40 screws (or equivalent). Figure 2 details the mounting-
hole spacing and other dimensions of the PSC Rev A, which are the same for the Rev B board as well.
Ensure the servo power switch on the Parallax Servo Controller is off, and then connect the power source
for the servos to the screw terminals observing proper polarity. The power source for the servos
must be a separate power source from that of the Board of Education Rev C. This document
assumes the host system is a BS2 module plugged into a Board of Education Rev C from Parallax, though
those items are not required for proper operation. A three-conductor cable (included) connects the
Ground, +5VDC, and serial I/O line to the host system. If you are not using the Rev C BOE, connect the
wires of the three-conductor cable to VSS (black), +5VDC (red), and the I/O pin of your choice on your
host system. Note the I/O pin number on the BOE that is connected as the serial I/O line on the PSC.
This document assumes you have connected this cable into X4, slot 15. Ensure that the Vservo jumper
selector, (between X4 and X5 on the BOE Rev C), is set to the VDD position. Connect your servos to the
3 pin terminals provided. Figure 3 is an example showing the Parallax Servo Controller connected to two
servos and the Board of Education.
2
Figure 2: Parallax Servo Controller Mounting Holes
Figure 1: Parallax Servo Controller – Rev B
Parallax, Inc. • Parallax Servo Controller – Rev B ver 2.4 (#29023) • 1/2005
(43 mm)
1.7”
Serial In
© 2004
- + S
© 2004
+
-
Ch15
Ch13
Ch11
Ch9
Ch7
Ch5
Ch3
Ch1
Servo Controller
1.5” (38 mm)
1.8” (46 mm)
+
Ch14
Ch12
Ch10
Ch8
Ch6
Ch4
Ch2
Ch0
Rev A
S + -
Rev B
1.4”
(35.5 mm)