Omron G5 Series User Manual page 410

8 Operation
Reasons for No Rotation
A number is displayed to indicate the cause why the motor does not rotate.
Control Cause
mode number
No. Item
Flashing An alarm or warning
occurred
0 No cause
1 Main power cut off
2 input signal not
RUN
turned ON
3 Drive prohibition input
not enabled
4 Torque limit value too
small
6 IPG input enabled
7 Command pulse input
frequency too low
8 ECRST input enabled
9 VZERO input enabled
11 Internal command speed
zero
14 Other causes
Note The Servomotor may rotate even when the displayed cause number is other than 0.
8 - 14
... Position control ... Reserved
... Reserved
... Speed control
Related
control
mode
All An alarm or warning occurred.
All No cause was detected. Normally, the Servomotor is rotating.
All The main power supply to the Servo Drive is not turned ON.
All The Operation Command (RUN) signal is not connected to COM.
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.
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.
P IPG is open with Command Pulse Prohibition Input Setting (Pn518) set to 0
(enabled).
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.
P Error Counter Reset Input (ECRST) is connected to COM with Error
Counter Reset Condition Selection (Pn517) set to 0.
S, T Zero Speed Designation (VZERO) is open with Zero Speed Designation
Selection (Pn315) set to 1 (enabled).
S The selected internal command speed is 30 r/min or less.
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.)
OMNUC G5-series (Pulse-train Input Type) AC Servomotors and Servo Drives User's Manual
Description