YASKAWA Z1000 User Manual page 213

Digital Operator Display
Cause
IGBT fault
IGBT short circuit detection circuit fault
The drive is damaged
Digital Operator Display
Cause
Parameters related to Speed Search are set to
the wrong values
The motor is coasting in the opposite direction
of the Run command
Digital Operator Display
TdE
Cause
An error has occurred in the Real-Time Clock
function of the HOA keypad
Digital Operator Display
TIE
Cause
An error has occurred in the Real-Clock Time
function of the digital operator
Digital Operator Display
TIM
Cause
The Real-Time Clock for the digital operator
is not set in parameter o4-17
• The drive is a new drive, first power-up
condition
• o4-17 was set to 2, Reset, by the user,
manually clearing the Real-Time Clock
data.
The user did not set the Real Time Clock when
prompted following power-up.
The digital operator battery is low or the
battery has been replaced
An error has occurred in the Real-Time Clock
function of the digital operator
YASKAWA TOEP YAIZ1U 03B YASKAWA AC Drive – Z1000 User Manual
SC IGBT Short Circuit or Ground Fault
• Check motor wiring.
• Turn off the power supply, then turn it on. If the problem continues, contact your Yaskawa
representative or the nearest Yaskawa sales office.
• Check the drive output side short circuit for a broken output transistor
B1 and U/T1, V/T2, W/T3
– and U/T1, V/T2, W/T3
• Contact your Yaskawa representative or nearest Yaskawa sales office.
Too Many Speed Search Restarts
SEr
The number of Speed Search restarts exceeded the value set to b3-19.
• Reduce the detection compensation gain during Speed Search (b3-10).
• Increase the current level when attempting Speed Search (b3-17).
• Increase the detection time during Speed Search (b3-18).
• Repeat Auto-Tuning.
Set b3-14 to 1 to enable Bi-Directional Speed Search.
TdE Time Data Error
Replace the HOA keypad. For replacment instructions, contact Yaskawa or your nearest sales
representative.
TIE Time Interval Error
Replace the digital operator. For instructions on replacing the digital operator, contact Yaskawa or your
nearest sales representative.
TIM Time Not Set
Possible Solution
Set o4-17 to 1 to set the time for the digital operator.
The drive will display the "TIM" alarm (Time Not Set) when the Real time Clock is not set . Additionally,
at power up, if the "TIM" condition is present, the drive will automatically switch to the time setting
screen (o4-17 = 1) for 30 seconds to prompt the user to set the Real-Time Clock.
Cycle power to the drive and set the Real Time Clock within 30 seconds of power-up, or set the clock
manually via parameter o4-17.
Replace the digital operator battery and set the Real-Time Clock.
Replace the digital operator. For instructions on replacing the digital operator, contact Yaskawa or your
nearest sales representative.
Fault Name
Possible Solution
Fault Name
Possible Solution
Fault Name
Possible Solution
Fault Name
Possible Solution
Fault Name
5.4 Fault Detection
5
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