TECO speecon 7200ma - Appendix: PID Controller Adjustment; PID Controller Tuning Procedure

107
(B). Warning and Self-Diagnosis Functions
LCD Display
(English)
Fault Contents
Fault Contact
Output
(blinking)
Alarm
DC Volt. Low
The main circuit DC voltage becomes lower than the lower under-
voltage level before the motor starts.
No operation
(blinking)
Alarm
Over Voltage
The main circuit DC voltage becomes higher than the lower under-
voltage level before the motor starts.
No operation
(blinking)
Alarm
Over Heat
The thermal protection contact is input to the external terminal. No operation
(blinking)
Alarm
Over Torque
Over tor
q
ue is detected while the out
p
ut current is lar
g
er than or e
q
ual to the
settin
g
of Cn-26. However, the Sn-12 has been set such that the inverter
continue to run and disregard the over-torque warning.
No operation
Stall prevention operates while acceleration.
Stall prevention operates while running
－
Stall prevention operates while deceleration.
No operation
(blinking)
Alarm
External Fault
Forward and reverse rotation commands are simultaneousl
y
detected
for a
p
eriod of time exceedin
g
500ms.
(
The inverter is sto
pp
ed
according to the stop method preset by Sn-04.)
No operation
(blinking)
Alarm
RS-485 Interru
p
t
MODBUS Communication fault occurs. The inverter remains
operating.
No operation
Comm. Fault Transmission fault of digital operator No operation
(blinking)
Alarm
B.B.
External B.B. si
g
nal
(
terminal
e
)
is in
p
ut
(
The inverter sto
p
s and the
motors stops without braking)
No operation
Improper inverter capacity (Sn-01) setting. No operation
Im
p
ro
p
er settin
g
of multi-function in
p
ut si
g
nal
(
Sn-25, 26, 27 and
28).
No operation
Improper setting of V/F characteristic (Cn-02~08) No operation
Alarm
Input Error
Improper setting of Cn-18, Cn-19 No operation
(blinking)
Alarm
Over Speed
Excessive speed (operation remains) No operation
(blinking)
Alarm
PG Open
PG Open-circuit (operation remains) No operation
Alarm
Sp.Deviat Over
Excessive speed deviation (operation remains) No operation
Load Fail Error during upload and download (operation remains) No operation
EEPROM Fault Operator EEPROM error. No operation
Upload Error
Data incorrect durin
g
Communication from the o
p
erator to the
inverter.
No operation
Download Error
Data incorrect durin
g
Communication from the inverter to the
operator.
No operation
Alarm
Auto Tun-Error
Motor parameter autotuning error No operation