Fuji Electric Frenic lift, Reference Manual

Page: 181 / 254

Speed
0
Run command
SW52-2
Inverter main circuit
(output gate)
ON
ON
ON
L85: MC control
(Startup delay time)
H67: Stop speed
(Holding time)
Stop speed
L86: MC control
(MC OFF delay time)
Terminal EN
ON
MC Control Signal SW52-2 Timing diagram
■
MC control 2 SW52-3
This signal is a logical sum (OR function) of
SW52-2
(MC control) and
AX2
(Run command
activated).
The timing diagram is shown on the following figure. Compared with
SW52-2
, even if
EN
terminal
is OFF or
BX
terminal is ON,
SW52-3
comes ON and MC can be turned ON in such a condition.
Speed
0
Run command
( AX2 )
Inverter main circuit
(output gate)
ON
ON
ON
L85: MC control
(Startup delay time)
H67: Stop speed
(Holding time)
Stop speed
L86: MC control
(MC OFF delay time)
Terminal EN ON
SW52-3
ON
( SW52-2 )
ON
MC Control Signal 2 SW52-3 Timing diagram
■
MC Operation confirmation
CS-MC
is assigned to a general-purpose, programmable input terminal by setting "103" with E01 to
E08, E98 and E99. This signal checks that the output side magnetic contactor works correctly. Make
the external circuit as if actual MC condition is ON, this input signal CS-MC becomes ON.
If there is a time lag between the status change of the
SW52-2
(
SW52-3
) signal and the
corresponding change of the
CS-MC
signal, specify the lag time with L84 (Brake check timer).
During the lag time set by L84, even if there is a difference between the output status of the
SW52-2
signal and input status of the
CS-MC
signal, the inverter does not trip. Set L84 in consideration of
time from the change of
SW52-2
to the change of
CS-MC
.
When
SW52-3
is set instead of
SW52-2
, it operates according to the state of
SW52-3
and
CS-MC
.
When both
SW52-2
and
SW52-3
are set, it operates according to the state of
SW52-2
and
CS-MC
.
2-168