7-10
7-2 Troubleshooting
SYSDRIVE MX2 Series USER'S MANUAL (3G3MX2-Axxxx)
   7
Maintenance Operations
The motor does not 
turn after a RUN 
command is 
issued.
Rotation Direction Limit Selection 
(b035) is set and forward or 
reverse rotation is prohibited.
Set the correct Rotation Direction Limit 
Selection (b035). 5-23
The input terminal wiring 
for RUN command or 
shorting-bar connection 
position is incorrect.
Implement wiring correctly. (The ON/OFF 
status of the input terminal can be checked 
with Multi-function Input Monitor (d005)).
2-19
to
2-22 
The analog input for 
frequency reference or 
Variable Resistor wiring is 
incorrect.
Implement wiring correctly.
• For the analog voltage or Variable 
Resistor input, measure the FV-SC 
terminal voltage using a tester, etc. to 
check if the correct voltage is output.
• For the analog current input, disconnect 
the wiring and measure the source-FI 
terminal current using a tester, etc. to 
check if the correct current is supplied.
2-6
5-37
"51: F-TM (Forced terminal 
block)" is allocated to a 
multi-function input terminal 
and the terminal is turned 
ON, even though a Digital 
Operator mode is selected.
Turn OFF the terminal to which the 
applicable function is allocated.
5-85
"31: OPE (Forced 
operator)" is allocated to a 
multi-function input terminal 
and the terminal is turned 
ON, even though the 
control circuit terminal block 
mode is selected.
Turn OFF the terminal to which the 
applicable function is allocated.
5-85
The Inverter has tripped. 
(The ALARM LED 
indicator is lit and "Exxx" 
is shown).
Press the STOP/RESET key to reset the 
trip, identify and remove the cause of the 
trip based on the error code, and then 
restart the operation.
3-12
5-119
7-1 to 
7-5
The safety function 
selector switch is turned 
ON and the multi-function 
input terminal S3/GS1 or 
S4/GS2 is turned OFF.
If the safety function is used, turn both the 
safety inputs GS1 and GS2 ON. If the 
safety function is not used, turn OFF the 
selector switch.
5-167
"18: RS (Reset)", "14: CS 
(Commercial switch)", or 
"11: FRS (free-run stop)" is 
allocated to a multi-
function input terminal and 
the terminal is turned ON.
Turn OFF the terminal to which the 
applicable function is allocated.
5-79
5-100
5-103
"84: ROK (Permission of 
RUN command)" is 
allocated to a multi-
function input terminal and 
the terminal is turned OFF.
Turn ON the terminal to which the 
applicable function is allocated.
5-63
The wiring from the 
Inverter to the motor or 
wiring inside the motor is 
disconnected.
Check the wiring.
2-6 
to 
2-14
The load is excessive. Reduce the load. −
The motor is locked. Unlock the motor. −
Condition Possible cause Remedial actions
R
eference
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