Toshiba Tosvert VF-A5 - Commercial Power;Inv Switching

,- - ·= '- p
,
''
',
(T
erminal Selection arameters)
- ·- -
1
,- ,- , ',-1 ,-,- , , ,-
'
-,, , ,- , ,-,, '
,_,_ - - -
Commercial power/INV switching
Related parameters
ICC HG I Commercial/inverter switching output
G ,- .P ,- IR,- S l= I Auto-restart
1,c C HGI Commercial/inverter switching frequency
IO l: 0 I 10 l: I I Output terminal selections
(motor speed search)
These parameters
allow the inverter to change from commercial power operation to inverter operation,
and to restart without having to stop the motor when restoring power after a momentary outage
(in the
coast-stop state.)
By setting the
commercial power/INV switching frequency (IF CH[, I), the inverter will accelerate, and
then
automatically switch the motor to the commercial power source. Energy savings and quieter operation
can be
realized when the motor is run directly from commercial power.
[[.'-I[,
setting Function
n
OFF
._,
' Automatic switching upon trip
'
2
Switching at commercial/inverter switching frequency setting
3
Switching at commercial/inverter switching frequency
setting, automatic switching upon trip
An example of the commercial power/inverter switching wiring is shown below.
MC2
MCCB
MC1 TH-Ry
operation
signal
S2(10)
,,.....
liNv
~--·----~
cc
Commercial
Sl(Sl)
P24
MCl
ST
RCH
(46)
- -----n
·--· --·--··-!
cc
LOW
(48)
1 l: : I set to I 0 Emergency stop
11= c' I set to s I Commercial power/ INV switching signal
IO c O I set to '-J 5 Commercial power/I NV switching output 1
IO f= : I set to '-I 8 Commercial power/I NV switching output 2
*
Short circuit between ST and CC when using only the auto-restart function.
*Select motor speed search (IF;,- Sc I in [, ,- .F' ,- ) on ST make/break (commercial power switching)
- 66 -