Omron G5 R88D-KE Series, User Manual, Page: 410 / 506

8 Operation
8 - 14
OMNUC G5-series (Pulse-train Input Type) AC Servomotors and Servo Drives User’s Manual
A number is displayed to indicate the cause why the motor does not rotate.
Note The Servomotor may rotate even when the displayed cause number is other than 0.
Reasons for No Rotation
No. Item
Related
control
mode
Description
Flashing An alarm or warning
occurred
All An alarm or warning occurred.
0 No cause All No cause was detected. Normally, the Servomotor is rotating.
1 Main power cut off All The main power supply to the Servo Drive is not turned ON.
2 RUN input signal not
turned ON
All The Operation Command (RUN) signal is not connected to COM.
3 Drive prohibition input
not enabled All When Pn504 is 0 (drive prohibition input enabled):
• The forward drive prohibition input (POT) is open and the speed
command is in the forward direction.
• The reverse drive prohibition input (NOT) is open and the speed
command is in the reverse direction.
4 Torque limit value too
small All The torque limit value set in No. 1 Torque Limit (Pn013) or No. 2 Torque
Limit (Pn522), whichever is enabled, is set to 5% or less of the rated torque.
6 IPG input enabled P IPG is open with Command Pulse Prohibition Input Setting (Pn518) set to 0
(enabled).
7 Command pulse input
frequency too low P • Command pulse input is not correct.
• Connection with the input selected in Pn005 is not correct.
• The input pattern settings selected in Pn006 and Pn007 do not match,
etc.
Due to these causes, the number of command pulses per command cycle
is decreased to 1 pulse or less.
8 ECRST input enabled P Error Counter Reset Input (ECRST) is connected to COM with Error
Counter Reset Condition Selection (Pn517) set to 0.
9 VZERO input enabled S, T Zero Speed Designation (VZERO) is open with Zero Speed Designation
Selection (Pn315) set to 1 (enabled).
11 Internal command speed
zero S The selected internal command speed is 30 r/min or less.
14 Other causes All Although none of the above causes 1 to 13 is applicable, the Servomotor is
rotating at 20 r/min or less. (Possible causes are a small command value, a
heavy load, lock, or collision, a Servo Drive/Servomotor fault, etc.)
… Reserved
Control
mode
… Reserved … Position control
… Speed control
Cause
number