SV-iS7 User Manual - Inverter Drive Supermarket

Setting Items Functions
bit2 bit1 On the far right of the display is bit 1.
� Selects output phase open protective action.
� Selects input phase open protective action.
� � Selects input/output phase open protective action.
01 : Output phase open protection
Chapter 10 Protective Functions
In case of phase open of one or more phase of U, V, W of the inverter output terminal block, the inverter blocks output and
displays Out Phase Open.
10 : Input phase open protection
In case of phase open of one or more phase of R, S, T of the inverter input terminal block, the inverter blocks output and
displays In Phase Open on the keypad. Protection against input phase open starts only when a certain amount of
current(70~80% of the inverter rated output current) flows through the motor.
PRT-06 : IPO V Band : In case of phase open of one or more phase of the inverter inputs, the ripple of the DC link
voltage gets too large. The band of the ripple voltage is set. If the band of the ripple voltage set in this function code is
exceeded, input phase open trip occurs.
Note
Make sure that you set the motor rated current (BAS-13 Rated Curr) rightly. If the motor rated current being actually
used differs from the value set at BAS-13, phase open protection might fail to operate.
10.1.6 External failure signal
Group Code No. Function Display Setting Display Unit
IN
65~75 Px Define 4 External Trip -
87 DI NC/NO Sel - 000 0000000 -
By using No. 4 External Trip(external failure) among the multi-function input terminal functions, you can stop the
inverter operating in case of a problem with the system.
IN-87 DI NC/NO Sel : You can select the type of the input contact point. If the Dot mark of the switch is at the bottom, it
is A contact point(Normal Open) and if at the top, it operates as B contact point(Normal Closed). The terminals of each
bit are as follows.
bit
Multi—
11 10 9 8 7 6 5 4 3 2 1
function
terminal
P8 P7 P6 P5 P4 P3 P2 P1
10-8