Omron R88D-KN series User Manual page 84

3 Specifications
 Positive Drive Prohibition Input (POT) / Negative Drive Prohibition Input (NOT)
• These two signals are the inputs to prohibit positive or negative drive (over-travel inputs).
• When these terminals are shorted (factory setting), the Servo Drive can drive in the specified
movement direction.
• In the drive prohibition state, motor switches to servo lock state after a deceleration stop.
• The maximum force for a deceleration stop is the same as the maximum force of the Linear Motor.
• In the drive prohibition state, the Servo Drive does not switch to an error state.
• When the Drive Prohibition Input Selection (3504 hex) is set to 1, the operation at a drive prohibit
input can be selected in the Stop Selection for Drive Prohibition Input (3505 hex).
• If the Drive Prohibition Input Selection (3504 hex) is set to 2, a Drive Prohibition Input Error (Error
No. 38.0) will occur when there is a drive prohibition input.
• With the default settings, the Positive Drive Prohibition Input (POT) is allocated to pin 7, and the
Negative Drive Prohibition Input (NOT) is allocated to pin 8.
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 8 (3400 to 3407 hex) can change
the logic and allocation for the respective Input terminals (CN1 to 7 and 8).
 Origin Proximity Input (DEC)
• This is the deceleration signal for origin returns.
• If the Origin Proximity Input turns ON while the Linear Motor is moving at the origin proximity input
search speed, it will decelerate to the Speed during search for zero (6099 hex).
• With the default settings, the Origin Proximity Input is assigned to pin 9.
Additional Information
Although this signal input is enabled also in the Speed Control Mode and the Force Control
Mode, it does not affect operation.
 External Latch Input Signals (EXT1, EXT2, and EXT3)
• These are the external input signals to latch the actual value in the feedback pulse counter.
• The encoder position data is obtained when the External Latch Input is turned ON.
• With the default settings, External Latch Input 1 is allocated to pin 12, External Latch Input 2 to pin
11, and External Latch Input 3 to pin 10.
Precautions for Correct Use Precautions for Correct Use
• The external latch inputs are detected by on the rising edge of the signal, but the minimal sig-
nal ON and OFF widths must be 2 ms.
• The external latch inputs can only be set to NO (normally open) contacts.
• The external latch inputs can be allocated to pins 10 to 12 only.
3-10 G5 Series AC Servo Drives With Built-in EtherCAT Communications, Linear Motor Type