Yaskawa Sigma II Indexer - Manual (Page 15)

Sigma II Indexer User’s Manual Introduction
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1.1 Introduction
The Sigma II Indexer application module (P/N JUSP-NS600) is a single-axis position con-
troller with registration capabilities which connects to an SGDH servo amplifier via dual-
port RAM.
This combination expands the amplifier’s functionality to include simple point-to-point
positioning with an available registration function. The Sigma II Indexer option has two
operating modes, serial command mode and digital I/O mode.
The serial command mode allows immediate interpretation and execution of ASCII com-
mand strings sent via RS232/422/485 to the Sigma II Indexer. The digital I/O mode consists
of the program or index table (mode 0) and the jog speed table and homing (mode 1). While
in Mode
‡the program table allows execution of stored index moves, selected with input-
signal patterns (binary format). While in Mode 1, the jog speed table allows execution of
stored jog speeds, selected with input-signal patterns (binary format).Three types of homing
routines are also available while in Mode 1.
Figure 1.1 JUSP-NS600 Indexer/SGDH Combination
Table 1.1: Sigma II Indexer Functions
Function Description
Digital I/O Mode-
Program
(Index) Table (Mode 0)
Positioning data are selected from the program table stored in the indexer by using the positioning
data selection input signals (binary format). The indexer can store up to 128 program steps. All 128
program steps may be addressed with inputs.The program steps may be linked together to generate
more complex moves.
Digital I/O Mode-
Jog Speed Table and Homing
(Mode 1)
Up to 16 jog speeds are available. Speeds are selected by using the jog selection input-signals
(binary format). Homing is available while in this mode.
Serial Command Mode
Positioning data are input by ASCII command strings sent via RS232/RS422/RS485 to the indexer.
Commands can be sent up to 16 axes with one master controller. Positioning data can also be
selected from the program table stored in the indexer by ASCII commands.
Registration
Both serial command and program table mode support the registration function (external position-
ing).
Programmable Output Signals 5 programmable output signals are available.
Zone Signals
Up to 32 different zones can be defined to program the 5 programmable output signals
(/POUT0 - /POUT4) based on position.
Homing
Used for zero-point return (homing) when incremental encoder is used. Both serial command and
homing mode allow execution of the available homing routines. Three types of homing routines are
available:
1. Decel limit switch and encoder cø-pulse are used.
2. Only decel limit switch is used.
3. Only encoder cø-pulse is used.