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6-16
6-4 Setting the Mode
6
Opera
tion
Reason for No Rotation Display (Front Panel Operation)
A number is displayed to indicate the reason the Servomotor does not rotate.
Note
The Servomotor may rotate even if a reason number other than 0 is displayed.
No.
Reason
Relevant
control
modes
Description
Flash-
ing
Error or warning has
occurred
All
An error or warning has occurred.
0
No reason
All
No reason has been detected. The motor operation should be
possible.
1
Main power supply
interrupted
All
The main power supply to the Servo Drive is not turned ON.
2
No RUN input
All
The RUN command is not connected to COM.
3
Drive prohibit input is
enabled
All
When Pn04 = 0 (drive prohibit input enabled):
The Forward Drive Prohibit Input (POT) is open and the speed
command is in the forward direction.
The Reverse Drive Prohibit Input (NOT) is open and the speed
command is in the reverse direction.
4
Low torque limit
All
The currently effective torque limit, Pn5E (
No. 1 Torque Limit
) or Pn5F
(
No. 2 Torque Limit), is less than 5% of the rated torque.
5
Analog torque limit
input is enabled
P, S
When Pn03=0 (analog torque limit input):
The forward analog torque limit input is negative and the speed
command is in the forward direction.
The reverse analog torque limit input is positive and the speed
command is in the reverse direction.
6
IPG input is disabled
P
Pn43 = 0 (Command Pulse Prohibited Input Enabled) and the IPG input
is open.
7
Frequency of
command pulse input
is low
P
The position command per control cycle is 1 pulse or less and the
following are some of the possible causes.
The command pulse is not input correctly.
The input specified in Pn40 is not connected correctly.
The type of input specified in Pn41 or Pn42 is not correct.
8
ECRST input is
enabled
P
Pn4E = 0 (Clear deviation counter when signal is closed for 100
μ
s or
longer) and the deviation counter reset input (ECRST) is connected
to COM.
9
VZERO input is
enabled
S, T
Pn06 = 1 (zero-speed designation input enabled) and the Zero-speed
Designation Input (VZERO) is open.
10
External speed
command is low
S
The analog speed command is 0.06 V or smaller when the analog
speed command is selected.
11
Internal speed
command is zero
S
The internal speed command is 30 r/min or less when the internal
speed command is selected.
12
Torque command is
low
T
The analog torque command input (REF or PCL) is 5% or less of the
rated torque.
13
Speed limit is low
T
Pn5B = 0 (limit speed with No. 4 Internally Set Speed) and the No. 4
Internally Set Speed (Pn56) is
30 r/min or lower.
Pn5B = 1 (limit speed with REF input) and the analog speed command
input (REF) is 0.06 V or lower.
14
Other
All
Reasons 1 to 13 do not apply, but the motor is rotating at 20 r/min or
lower. (Command is low, load is heavy, load is locked, load has hit
something, Servo Drive is faulty, Servomotor is faulty, etc.)
: Position control
Control mode
Reason number
: Torque control
: Speed control
Summary of Contents for R88D-GT series
Page 20: ...18 Table of Contents ...
Page 234: ...3 133 3 8 Reactor Specifications 3 Specifications ...
Page 448: ...7 37 7 5 Manual Tuning 7 Adjustment Functions ...
Page 474: ...8 25 8 5 Periodic Maintenance 8 Troubleshooting ...
Page 475: ...Chapter 9 Appendix 9 1 Connection Examples 9 1 9 2 Parameter Tables 9 11 ...
Page 509: ......