TECO E710-403-H3SF - Page 65

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Group 22: PM Motor Parameters
Code
Parameter
Name
Setting Range Default
Attrib
ute
25.18.5KW
1800RPM
28.22KW
1800RPM
22-38
Open and
closed loop
switching point
frequency width
(%)
1.0~40.0 5.0
22-39
Preliminary DC
injection time
0~20.00 0.10
22-40
High frequency
angle finding
time
0.01~1.00 0.01
22-41
PM stop
method
0: Decelerate
or stop below
22-11 and
brake directly
1: Decelerate
or stop below
22-11 and
open loop
stop
0
22-42
Fully closed
loop low speed
Correction
constant Ka
64~8192 200
22-43
Fully closed
loop high
speed
Correction
constant Kb
64~8192 500
22-44
Fully closed
loop high
speed Position
low pass filter
1~256 4
22-45
PM magnetic
flux
0.01~10.00 0.60
.
Chapter 4 Troubleshooting
and Fault Diagnostics
4.1 General
Inverter fault detection and early warning / self-
diagnosis function. When the inverter detects a
fault, a fault message is displayed on the
keypad. The fault contact output energizes and
the motor will coast to stop (The stop method
can be selected for specific faults).
When the inverter detects a warning / self-
diagnostics error, the digital operator will
display a warning or self-diagnostic code, the
fault output does not energize in this case.
Once the warning is removed, the system will
automatically return to its original state.
4.2 Fault Detection Function
When a fault occurs, please refer to Table 4.1
for possible causes and take appropriate
measures.
Use one of the following methods to restart:
1. Set one of multi-function digital input
terminals (03-00, 03-07) to 17 (Fault reset);
activate input
2. Press the reset button on the keypad.
3. Power down inverter wait until keypad goes
blank and power-up the inverter again.
When a fault occurs, the fault message is
stored in the fault history (see group 12
parameters).
Table 4.1 Fault information and possible
solutions
LED display Possible solutions
OC
over current
• Extend acceleration /
deceleration time.
• Check the motor wiring.
• Disconnect motor and try
running inverter.
OCA
over current
• Set the longer acceleration
time
• Change to bigger capacity
of inverter
• Examine motor
• Check the wire
• Replace IGBT module
OCC
over current
• Change to bigger capacity
of inverter
• Add reactor to power
source
OCd
over current
• Set the longer acceleration
time
SC
short circuit
• Check the motor wiring.
• Disconnect motor and try
running inverter.