Introduction And Product Description; General Information; Digital Speed Controller; Features - Seco DS9000 Installation & Operation Manual

1.0

INTRODUCTION AND PRODUCT DESCRIPTION

1.1

GENERAL INFORMATION

This manual outlines installation and operating practices for the DS9000 series of Digital Speed
Controllers. It also contains a brief description of the product and includes specifications. Before
installing or operating the equipment, read and understand this manual.
1.2

DIGITAL SPEED CONTROLLER

The SECO DS9000 Digital Speed Controller is a closed loop digital speed regulator which can operate
as a Speed Set point controller or as a precision follower when used with an AC or DC drive. The
controller will maintain a long term speed accuracy of ±.01% of top speed and the 16-bit
microcontroller used in the unit provides a 10ms control loop update time, giving tight control and
good stability.
The DS9000 allows up to eight preset speeds and two sets of the following parameters, maximum
speed, minimum speed, acceleration time and deceleration time to be set by the user. Other
parameters such as scaling factors and stabilizing gains are also adjustable. An easy to read digital
readout shows speed in user selected engineering units. When used as a follower, the digital readout
will show the speed of the controlled motor or the speed of the reference.
The DS9000 will allow two complete sets of operator adjustments to be preset. This means the unit
can be set up to handle two different applications or products. Selection of the operating set of
parameters is by terminal strip connection at the rear of the unit.
The 0-10VDC output signal to the AC or DC drive being controlled is isolated from common on the
DS9000 and can be connected to non-isolated motor controllers.
1.3

FEATURES

•
Closed Loop Set Point Controller – long term accuracy ±.01% of top speed
•
16 bit microprocessor controller
•
Fast Response Time – internal up-date time 10 ms.
•
Feedback Rate Programmable – 30 – 600 pulses per revolution
•
Feedback Signal Selectable – Magnetic pick-up
•
Speed Control or Follower Mode
•
Readout of Speed in user selected Engineering Units or RPM
•
Follower Mode speed readout displays controlled motor or reference signal
•
Isolated output signal to AC or DC motor control, 0-10VDC, 5mA
•
Speed setting resolution of 1 RPM
•
Two selectable sets of independent parameters can be programmed
•
Four Preset Speeds or Ratios within each set of parameters
•
Speed or ratio may be changed while operating
1.4

SPECIFICATIONS

AC Supply
Ambient Temperature
Altitude
Accuracy
4
DS9000 DIGITAL SPEED CONTROLLER
Encoder
Open Collector Hall Effect type
115/230VAC ±10%, 15VA
0-50°C
0-1000 M or 3300 ft.
Speed holding ±1 RPM
Zero cumulative error in follower mode