Installation manual

GEO Direct PWM Amplifiers – Preliminary Documentation
2 Overview
• PMAC Drives — The GEO Drive becomes a standalone-capable controller/drive with stored-
program capability. It contains a “Micro PMAC” controller that provides a subset of PMAC
capabilities with full positioning and trajectory capabilities, with synchronization to other drives
and/or external encoders. It can accept several styles of position feedback, including single or dual
quadrature encoders, sinusoidal encoders with interpolator, resolvers, and absolute serial encoders
(SSI, EnDat, Hiperface). It also provides interface for flags (limits and home), and some general-
purpose I/O points. Versions 2, 3 and 4 use a common logic PC Board platform.
• Options — Optionally, the Smart GEO Drive supports a built-in “Can-Bus” interface as well as
Profibus and DeviceNet master or slave, and Field Bus I/O interfacing via a plug-in “SST” Universal
Communications System (UCS) module.
A special UCS card has been designed to optionally provide USB (Universal Serial Bus) and Ethernet
communications as well as additional I/O, a display driver connector, and two 20-point flat panel
keyboard scanners.
Package Types
GEO package types provide various power levels and one or two axes capability. The GEO Drive has a
basic package size of 3.3" W x 9.25" H x 8.125" D (84 mm W x 235 mm H x 206 mm D). This size
includes the heat sink and fan. In this package size, the GEO can handle one or two low-to-medium
power axes and only a single axis for medium to high power.
The mechanical design is such that it allows two heat sinks to be easily attached together so as to provide
two high power axes in a double width configuration. This double package size is 6.6" W x 9.25" H x
8.125" D (168 mm W x 235 mm H x 206 mm D). It provides a highly efficient package size containing
two axes of up to about 10kW each thus driving nearly 24kW of power, but using a single interface card.
This results in a highly cost efficient package.
• Flat Mounting Plate (No Finned Heat Sink) No Fan
3.3" wide (single width) (84 mm), Maximum Power Handling ~1200 watts
Package Dimensions: 3.3" W x 9.25" H x 5.9" D (84 mm W x 235 mm H x 150 mm D)
• Low Profile (84 mm W x 235 mm H x 150 mm D)
Finned Heat Sink, Black Anodized No Fan
3.3" wide (single width) (168 mm), Maximum Power Handling ~2400 watts
Package Dimensions: 3.3" W x 9.25" H x 8.125" D (84 mm W x 235 mm H x 206 mm D)
• Finned Heat Sink, One Fan
3.3" wide (single width), Maximum Power Handling ~12,000 watts
Package Dimensions: 3.3" W x 9.25" H x 8.125" D (84 mm W x 235 mm H x 206 mm D)
• Finned Heat Sinks, Two Units, side by side Two Fans
6.6” wide (double width), Maximum Power Handling ~24,000 watts
Package Dimensions: 6.6" W x 9.25" H x 8.125" D (168 mm W x 235 mm H x 206 mm D)
Compatible Motors
The GEO drive product line is capable of interfacing to a wide variety of motors. The GEO drive can
control almost any type of three-phase brushless motors, including DC brushless rotary, AC brushless
rotary, induction, and brushless linear motors. Motor selection for an application is a science in itself and
cannot be covered in this manual. However, some basic considerations and guidelines are offered. Motor
manufacturers include a host of parameters to describe their motor.