Pr.57
- Pr.59
0
Pr.57 (free-wheeling time)
'
If
"0"
is set for Pr.57, the following stand-
ard time is set for the free-wheeling time.
Generally, the operation is possibk in this
setting, the set time can
be
adjusted in the
Freewheeling time indicates the time for range of
0.1
to
5
seconds meeting the mo-
which the inverter waits for the control for ment of inertia of load
(GO')
and torque.
restart.
0.1K
to
1.5K
.....
0.5
sec.
2.2
K to 3.7K
.....
t
.O
sec.
n
Pr.58 (start-up time)
bd
Usually, the setting of
0.5
seconds (factory-setting) need not
be
changed for ordinary operation.
However,
it
is possible to adjust the output voltage start-up time
m
the range of
0.1
to
5
seconds meeting the load specification (moment of inertia and torque),
keep away from the motor and machine.
When the automatic restart affer instantaneous power failure function
has
been selected,
Input
tom~
r~loutlon
0
Eight types of function can
be
allocated without restriction to the control slgnal input terminals
(the four terminals
RUOH,
RWAU,
RH,
and
MRWRT).
Setting is accomplished by allocating a four-digit value
to
Pr.59.
Each digit represents the function for one
of
the terminals.
Set
Abbndation
value
Function
Function Name
Remarks
Related
Pr.
9999
Factoty
setting
Pr'44'
Pr'17'
Same as function
More
allocation
Pr.74
3
External thermal relay input
*
If
9999
is set for Pr.80, it
is
possible to switch between
VIF
control and general-purpose mag-
netic flux vector control by using the
RT
terminal.
-70-
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