LiteOn ISA-7-040-S1 User Manual

Lite-On Technology Corp.
Industrial Automation
162
7.3. Speed mode
The speed mode for control (S or Sn) is used for the device requiring precise speed control, such as the
CNC processing machine. Two modes for command input are available for the drive, which are the
analog and register input.
 The input of analog command is used to manipulate the rotation speed of motor through the
external voltage.
 Two application methods are available for the input of command register:
 For the first method, the user sets different values of speed command to three command
registers (PA-14~PA-16) before activation and switches them through SP0 and SP1 of DI in
CN1.
 As for the second one, the content value of the command register is changed through
communication. For the incoherence generated due to the switching in command register, the
device provides complete S-curve planning.
In the closed-loop control system for speed, two gain adjustment modes (PB-33, manual and auto) are
available for the user.
 Manual gain mode: The user sets all parameters for speed loop and all auto or auxiliary
functions are turned off.
 Automatic gain mode: The estimation of load inertia is provided. The parameter of the drive
is adjusted simultaneously. The parameter set by the user is regarded as the initial value.
7.3.1. Selection of speed command
The source of the speed command can be divided into the analog voltage input externally and the
internal parameter. The selection depends on the DI signal of CN1. The correspondence between the
speed command and signal is shown in the following table:
Speed
command
no.
DI signal of CN1
Command Source
Contents
Scope
SPD1
SPD0
S1
0
0
Mode
S
External analog
command
Voltage difference
between V-REF and
GND
-10 V ~ +10V
Sn
None
The speed command
is 0.
0
S2
0
1
Parameter of internal register
PA-14
-5000.0 ~ 5000.0
S3
1
0
PA-15
-5000.0 ~ 5000.0
S4
1
1
PA-16
-5000.0 ~ 5000.0
 PD0 ~ SPD1 status: 0 represents open circuit (Open) and 1 represents close circuit (Close).
 In the situation that SPD0=SPD1=0, the command is 0 if the mode is Sn. If the user does not need
to use the analog voltage as the speed command, he or she may adopt Sn Mode to make sure that
the analog voltage is without zero drift. For S Mode, the command is the analog voltage difference

LiteOn ISA-7-040-S1 Specifications

General

Brand	LiteOn
Model	ISA-7-040-S1
Category	Servo Drives
Language	English