3-6
3-3
Using Parameter Units
The key operations for the Hand-held R88A-PR02U Parameter Unit and the Mounted
R88A-PR03U Parameter Unit vary depending on the functions used.
3-3-1 Parameter Unit Keys and Functions
PR02U
PR03U
Function
RESET
+
Alarm reset
Mode switching
Data memory
SERVO
DATA
Servo ON/OFF during jog op-
erations
DATA
DATA
Switching between parameter
display and data display; data
memory
Increments parameter num-
bers and data values.
Decrements parameter num-
bers and data values.
---
Left shift for operation digits
---
Right shift for operation digits
3-3-2 Modes and Changing Modes
H
Modes
OMNUC U-series AC Servo Drivers have four operating modes, as described in the following table. For
example, the Settings Mode is used to set parameters.
Mode
Function
Status display mode
Bit display (indicating internal status via indicators):
Power supply ON display, base block, positioning completion, rotation detection and
current limit detection, command pulse input
Symbol display (indicating internal status via 3-digit 7-segment display):
Base block, operating, forward rotation prohibited, reverse rotation prohibited, alarm
display
Settings mode
System check: Jog operations, alarm history data clear, motor parameters check,
auto-tuning
Setting and checking setup parameters
Setting and checking user parameters
Monitor mode
Speed feedback, speed commands, torque commands, number of pulses from U-
phase, electrical angle, internal status bit display, command pulse speed display,
position deviation, input pulse counter (HA/LA/V/W Models)
Alarm history display
mode
Displays contents of alarms that have been previously generated (up to a maximum
of 10).
Hand-held
Parameter Unit
R88A-PR02U
Mounted
Parameter Unit
R88A-PR03U
Operation
Chapter 3
