Omron R88D-KN series User Manual

7-9
7 Applied Functions
G5 Series AC Servo Drives With Built-in EtherCAT Communications, Linear Motor Type
7-2 Positive and Negative Drive Prohibition Functions
7
 Drive Prohibition Input Selection (3504 Hex)
Set the operation of the Positive Drive Prohibition Input (POT) and the Negative Drive Prohibition Input
(NOT). Install limit switches at both ends of the axis to prohibit the motor from driving in the direction
specified by the switch. This can be used to prevent the workpiece from driving too far and thus prevent
damage to the machine. Set the operation to be performed upon positive and negative drive prohibition
input.
*1 For details, refer to explanation for Stop Selection for Drive Prohibition Input (3505 Hex) on page 7-9.
Precautions for Correct UsePrecautions for Correct Use
Both signals are disabled (in a state in which drive prohibition will not operate) in the default
settings. If a drive prohibition input is required, set the Drive Prohibit Input Selection (3504 hex)
to either 0 or 2. The setting on the Input Signal Selection 1 to 8 (3400 to 3407 hex) can change
the logic and allocation for the respective Input terminals (CN1 to 7 and 8).
 Stop Selection for Drive Prohibition Input
Set the deceleration and stop methods upon a positive or negative drive prohibition input.
*1 If the Drive Prohibition Input Selection (3504 hex) is set to 2, a Drive Prohibition Input Error (Error No. 38.0) will
occur as soon as either the Positive or Negative Drive Prohibition Input becomes open. Therefore, regardless
of the set value, the subsequent operation will be performed according to the setting of the Fault reaction
option code (605E hex). In the same way, the Fault reaction option code (605E hex) takes priority when any
other error occurs.
Drive Prohibition
Input Selection
(3504 hex)
Explanation
0 Positive drive prohibition input and negative drive prohibition input enabled.
The operation when a signal is input is as follows:
• Positive drive prohibition input closed: Positive limit switch not operating and status normal.
• Positive drive prohibition input open: Positive direction prohibited and negative direction permitted.
• Negative drive prohibition input closed: Negative limit switch not operating and status normal.
• Negative drive prohibition input open: Negative direction prohibited and positive direction permitted.
The motor decelerates and stops according to the sequence set in Stop Selection for Drive
Prohibition Input (3505 hex).
*1
If the positive and the negative prohibition inputs are both open, a Drive Prohibition Input
Error 1 (Error No. 38.0) will occur because it is taken that Servo Drive is in error condition.
1 Positive and negative drive prohibition input disabled.
2 Positive and negative drive prohibition input enabled.
If either the positive or the negative prohibition input is open, a Drive Prohibition Input Error
1 (Error No. 38.0) will occur.
3504 hex
set value
*1
3505 hex
set value
Decelerating
*2
After stopping
Deceleration method
Error
counter
Operation after stop Error counter
0 0 Dynamic brake Clear Force command is 0 for
drive prohibition direction
Held
1 Free-run Clear Force command is 0 for
drive prohibition direction
Held
2
Immediate stop
*3
Clear Force command and force
limit are as specified.
Cleared after
deceleration
completes, then held.
(3505 Hex)

Omron R88D-KN series Specifications

General

Brand	Omron
Model	R88D-KN series
Category	Controller
Language	English