Rockwell Automation 1398-PDM-xxx IQ Master Version 3.2.4 for IA-2000 and IQ-5000 Positioning Drive Modules, IQ-55 - Manual (Page 110)

88 Inputs and Outputs • Assignable Inputs
Publication 1398-PM601A-EN-P — October 2000
I/O
The ULTRA Plus or IQ must be Ready and Enabled for jogging motion to occur.
When a Jog Input is Turned OFF
When a Jog input turns OFF, the jog position command is ramped down from its present velocity to zero
using the JDECEL deceleration rate.
Forward Travel Limit (I1) and Reverse Travel Limit (I2)
To help avoid safety hazards or equipment damage, both forward and reverse limit switches may be
used. If enabled these inputs must be CLOSED to 24 Volt common for the motor to be enabled and a
program run. The Forward and Reverse travel limit inputs are closed to 24 Volt common for normal
operation, and open to indicate a fault condition.
When a Travel Limit Turns ON (open)
•
If a program is running, it is aborted. Refer to Part 5
•
Language Reference, ABORT, for more
detailed information on what happens when a program is aborted.
• Once all motion has stopped, System Program 27, Error Routine is executed. Refer to Appendix A,
System Programs, for more detailed information.
When a Travel Limit Turns OFF (closed to 24 Volt common)
This edge is ignored by the ULTRA Plus or IQ.
Pause (I9)
The pause input is used to pause motion temporarily. When turned ON this input sets the system Pause
flag ON. When turned OFF this input resets the system Pause flag. Refer to Part 5
•
Language Refer-
ence, PAUSE for detailed information on what actions occur when the Pause Flag is set.
Start (I4)
The Start input, if enabled, may be used to start a user program. The ULTRA Plus or IQ can be selected
to start a specific program or a program selected by inputs. This selection is made in the Parameter
menu, Inputs dialog box.
If the Start input is disabled, programs are started only from the Operator Terminal or the Host Lan-
guage RUN command.
When Start Turns ON
The ULTRA Plus or IQ must be Ready, Enabled and NOT executing another main program when the
Start input switches from OFF to ON for a program to start. When the Start input is turned ON the pro-
gram selected as the default program or selected by program select lines will begin executing.
When a Start Turns OFF
This edge is ignored by the ULTRA Plus or IQ.
Define Home
The Define Home input can be assigned to any general purpose input that is not already assigned to a
dedicated function.
ATTENTION
!
This is a level sensitive input. Even if conditions are not satisfied to
permit jogging when this input is turned ON, jogging will begin as
soon as they are satisfied. For example, if there is a fault and the jog
input is turned ON, when the fault is cleared jogging will begin. If the
jog input is turned ON while the ULTRA Plus or IQ is disabled, when
the ULTRA Plus or IQ is enabled jogging will begin. If the jog input is
on when power is applied to the ULTRA Plus or IQ it will begin
jogging as soon as Ready.