Yaskawa VCD 723 - Manual (Page 38)

3 Operation
32 Start-up Operation
9/15/93
Indicates that a drive fault exists. The Fault/Error Code List (see Table 8 located
in the Troubleshooting/Maintenance section) defines what conditions the drive
will recognize as faults.
IMPORTANT
Clearing a Fault from the Fault List is NOT THE SAME as
resetting the fault. Some faults are transient in nature and require
no further action after clearing the fault from the Fault List.
Others require additional action to allow the drive to continue to
run. See the Fault/Error Code List for further details.
All status lights are under the control of the application specific software. The
PAC program for this drive must be consulted to determine the actual meaning
for each light.
There are five keypad keys on the LCDU. These allow for the entry and viewing
of data. They can also be used for operating the drive.
Allows you to “back out” of an operation. For example, if a mistake is made
while entering numerical data, the ESC key can be pressed before the data is
entered, allowing the operator to start over.
Scrolls to the next higher number. The number may be a specific function
number or the modification of the value of a parameter.
Scrolls to the next lower number. The number may be a specific function
number or the modification of the value of a parameter.
Completes an operation. It may be pressed to enter a modified parameter’s
value, or to go “deeper into” a function.
Used to clear the fault list. There are other methods that can be used to clear the
fault list, but this key provides a shortcut. Any time this key is pressed, the fault
list will be cleared. Depending on the nature of the fault and the PAC program
loaded, this button can also clear the fault condition as well as the record of the
fault.
An optional Portable Control Display Unit (PCDU) can be plugged into a
telephone style jack at the side of the VCD 723 drive (reference figure 4). If
your drive is equipped with this option, refer to the PCDU guide provided with
the unit for operating procedures.
❏ After applying power, the first message displayed on the Local Control
Display Unit is the following:
Fault
Local Control
Display Unit
(LCDU)
Verifying the
CRC-16. Wait...
Start-up
Operation
ESC
Up Arrow
Down Arrow
ENT
RST