Omron R88M-K User Manual page 363

Drive Prohibition Input Selection (3504 Hex)
Set the operation of the Forward Drive Prohibition Input (POT) and the Reverse Drive Prohibition Input
(NOT). Install limit switches at both ends of the axis to prohibit the Servomotor 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 forward and reverse drive
prohibition input.
Drive Prohibition
Input Selection
(3504 hex)
0
1
2
*1 For details, refer to explanation for Stop Selection for Drive Prohibition Input (3505 hex).
Precautions for Correct Use Precautions for Correct Use
Both signals are disabled (in a state in which drive prohibition will not operation) in the default
settings. If prohibiting the drive 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 10 (3400 to 3409 hex) can change
the logic and allocation for the respective Input terminals (CN1 to 7 and 8).
Stop Selection for Drive Prohibition Input (3505 Hex)
Set the deceleration and stop methods upon a forward or reverse drive prohibition is input.
3504 hex
3505 hex
*1
set value
set value
0
*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 Forward or Reverse Drive Prohibition Input becomes open. The subsequent
operation conforms not to the set value, but 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.
G5-series AC Servomotors and Servo Drives User's Manual (with Built-in EtherCAT Communications)
Forward drive prohibition input and reverse drive prohibition input enabled.
The operation when a signal is input is as follows:
Forward drive prohibition input closed: Forward limit switch not operating and status normal.
Forward drive prohibition input open: Forward direction prohibited and reverse direction permitted.
Reverse drive prohibition input closed: Reverse limit switch not operating and status normal.
Reverse drive prohibition input open: Reverse direction prohibited and forward direction permitted.
The Servomotor decelerates and stops according to the sequence set in Stop Selection for
Drive Prohibition Input (3505 hex).
If the forward and the reverse 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.
Forward and reverse drive prohibition input disabled.
Forward and reverse drive prohibition input enabled.
If either the forward or the reverse prohibition input is open, a Drive Prohibition Input Error 1
(Error No. 38.0) will occur.
Decelerating
Deceleration method
0 Dynamic brake
1 Free-run
2 *3
Immediate stop
Explanation
*1
*2
Error
Operation after stop
counter
Clear Torque command = 0 for
drive prohibition direction
Clear Torque command = 0 for
drive prohibition direction
Clear Torque command and
torque limit are as
specified.
7 Applied Functions
After stopping
Error counter
Held
Held
Cleared after
deceleration
completes, then held.
7
7-9