Fuji Electric Frenic lift, Справочное руководство

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2.3 Overview of Function Code
C
hap.
2
FUN
CT
IO
N
C
O
D
E
S
■
Load cell function (Overload mode selection) (L143)
Load cell function can operate in a different ways when Overload (LCO) level is detected.
Data for L143 Action
0
(Default setting)
When overload is detected (according to setting on L144 and L147)
LCO
output function is activated. Inverter doesn’t stop operation. It
is a decision of the controller to stop or not the lift.
1
When overload is detected (according to setting on L144 and L147)
LCO ouput function is activated. After closing the brake, inverter
stops and trips with LCO alarm.
■
Load cell function (Timer) (L144)
In order to detect torque at zero speed, brake has to be opened and some time is needed to stabilize
motor’s current. This time is defined in L144 function code.
■
Load cell function (LC1 detection level) (L145)
Torque level set on this parameter will be understood as, torque needed to keep zero speed when one
person (or a certain level of load) is inside the car.
In order to set L145 correctly, please check torque at zero speed when one person is inside car (or
certain amount of load that wants to be detected) after rollback is compensated.
Speed
(mm/s)
Run command
(FWD, REV)
ON
BRKS
L144
Mechanical brake
Opened
ON
EN1&EN2
ON
Torque
(%)
L145
LC1
ON
Figure 1. Level detection 1 (
LC1
)
As it can be observed, as soon as
BRKS
signal goes to ON, L144 timer starts to count. On the other
hand, as soon as mechanical brake opens torque (output current) increases but some time is needed
to stabilize torque at zero speed. When L144 timer is elapsed, because torque is below L145 level,
output function
LC1
is going to ON state. This is understood as one person inside the car (or similar
situation).
LC1
is kept to ON until current (torque) is completely removed from the motor. When
current is removed from the motor it is understood that travel is finished.
LC1
signal will go to OFF
when travel is finished.
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