YASKAWA CIPR-GA50UВ001AJ Series Installation & Primary Operation page 152

15 Troubleshooting
Code Name
Motor Switch during
rUn
Run
Modbus Test Mode
SE
Error
Safe Torque OFF
SToF
Hardware
TiM Keypad Time Not Set
152
Causes
The drive input power voltage is
changing too much.
Unsatisfactory balance between
voltage phases.
The main circuit capacitors have
become unserviceable.
The drive received a Motor 2
Selection [H1-xx = 16] during
run.
MEMOBUS/Modbus
communications self-
diagnostics [H1-xx = 67] was
done while the drive was
running.
One of the two terminals H1-
HC and H2-HC received the
Safe Disable input signal.
The Safe Disable input signal is
wired incorrectly.
There is internal damage to one
Safe Disable channel.
There is a battery in the keypad,
but the date and time are not set.
YASKAWA TOEPC7106170YB YASKAWA AC Drive GA500 Installation & Primary Operation
Possible Solutions
• Examine the supply voltage for
problems.
• Make the drive input power stable.
• Examine the supply voltage for
problems.
• Make the drive input power stable.
• If the supply voltage is good, examine
the magnetic contactor on the main
circuit side for problems.
• Examine the capacitor maintenance
time in monitor U4-05
[CapacitorMaintenance].
• If U4-05 is more than 90%, replace
the capacitor. Contact Yaskawa or
your nearest sales representative for
more information.
• Examine the supply voltage for
problems.
• Re-energize the drive.
• If the alarm stays, replace the circuit
board or the drive. For information
about replacing the control board,
contact Yaskawa or your nearest sales
representative.
Make sure that the drive receives the
Motor 2 Selection while the drive is
stopped.
Stop the drive and do MEMOBUS/
Modbus communications self-
diagnostics.
• Make sure that the Safe Disable signal
is input from an external source to
terminals H1-HC or H2-HC.
• When the Safe Disable function is not
in use, use a jumper to connect
terminals H1-HC and H2-HC.
Replace the board or the drive. For
information about replacing the control
board, contact Yaskawa or your nearest
sales representative.
Set the date and time with the keypad.