Omron SYSDRIVE 3G3RV, User Manual

Page: 123 / 446

Trial Operation Procedures
4-
17
n
Operation Using the Digital Operator
• Use
the Digital Operator to start operation in LOCAL mode in the same way as in no-load operation.
•
Make
sure the STOP Key on the Digital Operator is easily accessible so that any unexpected movement
can
be stopped.
•
At
first, set the frequency reference to a low speed of one tenth the normal operating speed.
n
Checking Operating Status
• Having
checked that the operating direction is correct and that the machine is operating smoothly at slow
speed,
increase the frequency reference.
• After
changing the frequency reference or the rotation direction, check that there is no oscillation or abnor-
mal
sound from the motor. Check the monitor display to ensure that U1-03 (Output Current) is not too
high.
•
Refer
to Adjustment Suggestions on page 4-18 if hunting, vibration, or other problems originating in the
control
system occur.
K
K K
K
Check and Recording Parameters
Use
verify mode (i.e., when the VERIFY indicator on the Digital Operator is lit) to check parameters that have
been
changed for trial operation and record them in a parameter table.
Any
parameters that have been change by autotuning will also be displayed in verify mode.
If
required, the copy function in parameters o3-01 and o3-02 displayed in advanced programming mode can
be
used to copy the changed settings from the Inverter to a recording area in the Digital Operator. If changed
settings
are saved in the Digital Operator, they can be easily copied back to the Inverter to speed up system
recovery
if for any reason the Inverter has to be replaced.
The
following functions can also be used to manage parameters.
• Recording
parameters
• Setting
access levels for parameters
• Setting
a password
n
Recording Parameters (o2-03)
If
o2-03 is set to 1 after completing trial operation, the settings of parameters will be saved in a separate mem-
ory
area in the Inverter. Later, after Inverter settings have been changed, the parameters can be initialized to
the
settings saved in the separate memory area when o2-03 was set to 1 by setting A1-03 (Initialize) to 1110.
n
Parameter Access Levels (A1-01)
A1-01
can be set to 0 (monitoring-only) to prevent parameters from being changed. A1-01 can also be set to 1
(User-specified
Parameters) and used along with A2 parameters to display only parameters required by the
machine
or application in a programming mode.
n
Password (A1-04 and A1-05)
When
the access level is set to monitoring-only (A1-01 = 0), a password can be set so that parameters will be
displayed
only when the correct password is input.