TECO A510s Series - Page 46

45
LED display Possible solutions
detection 15 / 08-16).
 Check and reduce motor
load, check and operation
duty cycle.
UT
Under torque
detection
 Check under torque
detection parameters (08-
19 / 08-20).
 Check load / application.
run
Switch for
Motor1/Motor2
 Revise the sequence
control and switch motor
in top time.
OS
Over speed
 Check ASR parameters
group 21.
 Check PG parameters
 Check overspeed
parameters 20-20/20-12.
PGO
PG
Open circuit
 Check PG wiring.
 Check PG power-supply.
 Make sure brake is
released.
DEV
Speed
deviation
 Check load
 Make sure brake is
released.
 Check PG wiring.
 Check PG parameters
20-23/20-24.
 Increase Acceleration /
deceleration time.
CE
communication
error
 Check connection
 Check host computer /
software.
FB
PID feedback
loss
 Check feedback wiring
 Replace feedback
sensor.
STO
Run Permissive
 Check F1 and F2
connection
SS1
Digital input
Stop command
 Check if 08-30 =0 and
03-00~03-07=58
EF0
External fault 0
 Reset Modbus
communication 0x2501
bit 2= "1"
LED display Possible solutions
EF1
External fault
(S1)
 Multi-function input
function set incorrectly.
 Check wiring
EF2
External fault
(S2)
EF3
External fault
(S3)
EF4
External fault
(S4)
EF5
External fault
(S5)
EF6
External fault
(S6)
EF7
External fault
(S7)
EF8
External fault
(S8)
CF07
Motor control
fault
 Perform rotational or
stationary auto-tune
 Increase minimum output
frequency (01-08)
CF08
Motor control
fault

Increase the value of 22-
10 and 22-23 properly.
 Re auto-tune (22-21)
 Check if the load is too
heavy to raise torque
output limit.