Fuji Electric Frenic lift, Reference Manual

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2.3 Overview of Function Code
C
hap.
2
FUN
CT
IO
N
C
O
D
E
S
ON
Speed
0
FWD
SS1
SS2
SS4
BRKE1
Brake1
Release
BRKS
L84
BRKE2
ALM
Brake2
ON
bbE alarm is not displayed.
RBrk
ON
EN(EN1, EN2)
Release
ON
Release
L84
ON
Release
ON
Release
L84
ON
Release
ON
Release
L84
ON
Release
Figure 6.
bbE
alarm while inverter is stopped and
RBRK
function is used
As it can be observed in figure 6, somebody or something is opening the brake even inverter is not
asking to do so. In other words, brake is manipulated even it should be closed. In this case, because
RBRK input function is activated, inverter is not tripping any alarm. When RBRK input is activated,
inverter understands that brake is being opened by external means in order to rescue people from car.
As this is treated as an exceptional operation, inverter does not trip with bbE alarm.
■
Brakes monitor according to UCM (Clear bbE alarm) (H95)
As explained before, bbE is a specific alarm for this function. Also, alarm Er6 has a SUB code
related to this function. Additional information for each alarm is described in table below:
Table 1. Alarms and SUB codes.
Alarm message
displayed
SUB
code
Description Possible causes
Er6 14
H96 is set to 1 but
some settings related
are missing.
Check that BRKE1 function is correctly set.
Check that BRKE2 function is correctly set.
Check that BRKS function is correctly set.
bbE 11 BRKE1 signal error Check status of micro switch in brake 1.
Check status of brake 1 and its power supply.
Check status of inverter input/output related to brake
1.
Check L84 time.
12 BRKE2 signal error Check status of micro switch in brake 2.
Check status of brake 2 and its power supply.
Check status of inverter input/output related to brake
2.
Check L84 time.
Because bbE alarm blocks the inverter according to UCM, it cannot be reset following the standard
procedure. Additionally bbE alarm cannot be auto reset by the inverter (H04, H05), neither can be
reset by switching OFF and ON inverter's power supply.
In order to reset the alarm, following procedure has to be done:
2-103