Panasonic A4P Series User Manual

Page of 232
172
Troubleshooting
Motor Does Not Run      Motor Stops During an Operation
Classification
Causes
Countermeasures
Error in control mode 
setting
Error in torque limit 
setting
Error in operation 
parameter setting
Setting out of a 
maximum travel range 
of target position
Error in a parameter 
used by a manufacturer.
Main power supply 
(L1, L2 and/or L3) of 
CN X1 and/or control 
power supply (L1C 
and/or L2C) does not 
turn on. Otherwise, a 
voltage value is wrong.
Servo-on input (SRV-
ON) of CN X5 is 
opened.
CW/CCW over-travel 
inhibit input (CWL/ 
CCWL) of CN X5 is in 
the ON state.
Strobe input (STB) of 
CN X5 is opened.
Emergency stop input 
(EMG-STP) of CN X5 
is opened.
Error in the point 
specifying input (P1IN 
to P32IN) of CN X5.
Error in input timing of 
the strobe input (STB) 
and the point specify-
ing input (P1IN to 
P32IN) of CN X5.
A stop instruction is 
input by the multi 
function input 1/2 (EX-
IN1/EX-IN2) of CN X5.
Homing not completed
During the execution 
of an operation com-
mand, the next opera-
tion command starts.
The motor shaft drags.
The motor does not 
run.
Set SV.Pr02 (Control mode) again.
Check the setting of SV.Pr5E (1st torque 
limit) and SV.Pr5F (2nd torque limit).
Check the parameters of travel, speed 
acceleration/deceleration time necessary 
for homing operation or step operation in 
16.Pr.
Check the set value of 32.Pr01/02.
Initialize all the parameters once and set 
them again.
Check the wiring and voltage of the main 
power supply (L1, L2 and/or L3) of CN 
X1 and/or the control power supply (L1C 
and/or L2C).
Check and wire the input signal so that 
the SRV-ON input can be connected to 
COM–.
Check the wiring of CW/CCW over-travel 
inhibit input and check the set value in 
SV.Pr53/54.
Check and wire the input signal so that 
the strobe input can be connected to 
COM–.
Check and wire the input signal so that 
EMG-STP can be connected to COM–.
Check the wiring of P1IN to P32IN.
Insert waiting time of 10 ms or more.
Check the setting and wiring of the multi 
function input 1/2.
Complete the homing.
Refer to page 114.
Check that the transistor of the motor 
operation state output turns ON and then 
start the next operation command.
If the motor shaft cannot be rotated, ask 
the local shop to repair the motor.
Parameter
Wiring
Others
The setting of the control mode in the console or the 
monitor mode of “PANATERM
®
” may be wrong.
The torque limit may be smaller than correct torque 
necessary for an operation.
A parameter necessary for an operation may not be set.
(If any parameter is not set, the error code No. 68 or 69 
is shown.)
An operation command may exceed the maximum 
travel range in a positive direction and/or negative 
direction.
The setting of parameter used by a manufacturer may 
be changed from a default setting.
Voltage of the main power supply and/or control power 
supply may not be correct.
The error code No. 11, 12 and/or 13 may occur.
The 7-segment LED on the front panel may show [--].
The servo-on signal may be in the [--] state in the 
monitor mode of the console or “PANATERM
®
”.
The CW/CCW over-travel inhibit input (CWL/CCWL) of 
CN X5 may be in the ON state. (“Enable/disable” and 
logic are set by SV.Pr53/54.)
The CW/CCW over-travel inhibit input may be in the [--] 
state in the monitor mode of the console or “PANATERM
®
”.
The strobe input (STB) of CN X5 may remain opened.
The strobe input signal may be in the [--] state in the 
monitor mode of the console or “PANATERM
®
”.
The emergency stop input (EMG-STP) of CN X5 may 
be opened. (The error code No. 39 is shown.)
The point specifying input (P1IN to P32IN) of CN X5 may 
not be input correctly. (Logic can be set by SV.Pr58.)
The state of P1IN to P32IN may not be displayed 
correctly in the monitor mode of the console or 
“PANATERM
®
”.
Waiting time from the input of the point specifying input 
(P1IN to P32IN) of CN X5 to the input of the strobe input 
(STB) of CN X5 may not be 10 ms or more. (If the 
waiting time is less than 10 ms, a target point may be 
unstable.)
The deceleration-and-stop, emergency stop and tempo-
rary stop, which are assigned to the multi function input 
1/2 (EX-IN1/EX-IN2) of CN X5, may turn on.
(Function selection and logic can be set by SV.Pr5A/5C 
and SV.Pr59/5B, respectively.)
Homing may not be completed.
The point output may be “0” in the monitor mode of the 
console or “PANATERM
®
”.
During the execution of an operation command (a 
transistor of the motor operation state output BUSY of 
CN X5 turns OFF), you may start the next operation 
command.
The motor shaft drags. The motor does not run.
1)After turning the power supply off and separating it 
from the machine, the motor shaft may not be rotated 
manually.
2)For the motor equipped with electromagnetic brake, 
the motor shaft may not be rotated manually if DC 24 
V is applied to the brake.