7. 
SElTlNG 
PARAMSTERS 
BEPORE 
B'IXFtTuP 
L 
~ 
r 
Callk.t*lg 
the 
Fmqqurnoy 
Yan 
I 
Calibrate Me frequency  meter 
before 
statling  operation 
so 
that  the  output status can 
be 
monitored  correctly.  When 
the 
parameter  unit  is 
used, 
the  frequency  meter  can  be 
I 
calibrated oreciselv.  (Refer 
11 
If 
an inverter which has been 
used 
before 
is 
to 
be 
used, the set values 
01 
the parameters 
might  have  been changed  according to  a 
specific 
operation.  Therefore,  it 
is 
necessary 
to 
initialize 
the 
parameter set  values before  starting the operation. The ten initialize refers 
to 
the 
operation to  reset the  parameter values 
to 
the factory-setting values. 
The  parameter  unit can be 
used 
to 
initialize the parameter set  values.  (Refer 
to 
page 39 
for details of  initialization procdure.) 
Remember that the following parameters cannot 
be 
initialized by the  parameter  clear opera- 
tion  using the parameter unit. For these parameters, change the parameter set value 
to 
the 
required value after  reading  the current  setting, or  reset the  parameters 
to 
the factory-set- 
ting  by  the aU  clear operation. 
e 
Pr.900 
'FM 
terminal calibration'  Pr.905  "Gain  for  frequency  setting  current" 
Pr.902 'Bias  for  frequency setting voltage'  Pr.38  "Frequency  at 
5V 
(IOV) 
input" 
Pr.903 "Gain for  frequency setting voltage'  Pr.39  'Frequency  at  20  mA  input" 
e 
Pr.904 gias for frequency setting  current"  Pr.75  "Reset  selectiorddetection 
of 
parameter  unit  disconnection" 
- 
20 
- 
L