Fuji Electric Frenic lift, Reference Manual

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Brakes monitor according to UCM (Check brake control select) (H96)
This function code selects mode operation (Enabled, disabled) for Brakes monitor according to UCM
as shown below.
Data for H96 Action
0 Disable (factory default)
Even
BRKE1 and BRKE2 functions are correctly programmed and wired,
monitoring function for UCM is not active.
BRKE
function is enabled.
1 Enable
Brakes monitor operation is performed by
BRKE1 and BRKE2 according
to UCM. When status of
BRKE1
and
BRKE2
doesn’t match with
BRKS
,
brake check timer (L84) starts. bbE alarm is generated when BRKE1 or
BRKE2
doesn’t match with
BRKS
for a time longer than the time specified
in L84. When the lift is traveling, alarm is not issued; alarm is generated as
soon as BRKS function is OFF and L84 timer is elapsed.
On the following figures, each possible scenario using
BRKE1 and BRKE2 input functions is
described.
a)
Brake feedback not matching with brake control signal at the second travel start
ON
Speed
0
High speed
Creep speed
FWD
SS1
SS2
SS4
ON
ON
ON
ON
Zero speed
command
High speed command
Creep speed
command
Zero speed
command
BRKE1
Brake1
Release
BRKS
ON
Stop speed(F25)
H67
L82 L84 L83 L84
BRKE2
ALM
Brake2
Release
ON ON
ON
ON
L82 L84
ON
ON
Release
EN (EN1,EN2)
ON
Inverter trips bbE.
Standard travel
Travel with abnormal brake
operation at starting
ON
Figure 1.
bbE
alarm at starting of second travel.
On figure 1 two travels are shown. On the first travel, as brake status is matching with brake control
signal all the travel, inverter is not tripping. On the other hand, when second travel starts, as brake 2
doesn’t open, inverter trips bbE after L84 timer is elapsed.
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