Fig. 43
"Open Position"
Limit Switch Wire
( Brown )
"Closed Position"
Limit Switch Wire
( Purple )
Traveller
Traveller
Trip-Arm
7.3
O
ver-Load Sensor Adjustments
"Sensitivity" Settings (
All Types of
Doors )
The "Sensitivity" settings are pre-set at the
factory. Under normal circumstances it should not
be necessary for these settings to be changed
except to
"fine-tune"
them.
Resist the temptation to set the operator to be too
sensitive. A
"positive"
force of between
5 - 10
kg
. is desirable for domestic garage doors.
7.3.1 Opening Force Adjustment .....
Stand clear of the path of the door !
7.3.1.1
Operate the door in the opening mode.
Whilst the door is in motion, obstruct the door by
grabbing hold of the bottom rail or pushing down
on the handle. The door should
stop
its motion
once it encounters a resisting force of
5 - 10 kg.
7.3.1.2
If adjustment is required, move the
"Up"
sensor adjustment lever in the appropriate
direction as shown on the legend on the
PC
Board
.
The
right hand side lever
controls the
"Up"
sensitivity.
"Open"
Limit Switch
( Note:-
“Closed"
Limit
Switch not shown )
Rubber Buffer
LUBRICATION
DO NOT USE COMMON GREASE
USE ONLY "BRANO LUBRICANT GDO-L1OR
"LOW-TEMP LUBRIPLATE" OR "AVGREASE 28"
Serial Number
299 A 8 / 3478
r
0
p
-
0
o
a
ph
a
20
l
7
LIMIT SWITCH SETTINGS
( All types of doors )
7.1 "UP" Limit Switch
7.1.1
First ! .....
Open and close the door manually to
ensure that it does not foul any part of the
operator.
7.1.2
Second ! ....
Manually open the door to the full
open position
7.1.3
Next ! ....
Move the
"up"
Limit Switch
towards
the Traveller Trip-Arm until contact is made.
7.1.4
Now ! .......
Secure the
"up"
Limit Switch
Bracke
t by means of it's securing screw and
connect the
brown
wire to the
"up"
Limit
Switch Terminal
and crimp in place.
7.2 "DOWN" Limit Switch
7.2.1 Manually close the door.
7.2.2 Move the
"down"
Limit Switch
towards the
Traveller Trip-Arm
until contact is made.
7.2.3 Secure the
Limit Switch Bracke
t by means of
it's securing screw and connect the
purple
wire
to the
"down"
Limit Switch Terminal
and
crimp in place.
IMPORTANT NOTE
Make sure that the operator stops on contact
with the Travel Limit Switches and not on the
"safety overload"
, ( i.e. sensitivity ),
switches.
If, whilst in the closing mode, the door stops
and then
immediately
reopens, readjust the
"down"
Travel Limit Switch. The operator is
driving the door too far downwards !!!
Do not try to get the door operator to stop in
the
"down"
mode by
increasing
the force
setting, ( i.e. reducing the sensitivity of the
operator ).
The operator must stop on contact with the
Travel Limit Switch only !!!
Traveller
Release Lever
Traveller Release
Pull Cord
"brano door operator installation manual"
page 21
SECTION 7
SETTING-UP INSTRUCTIONS
i n d u s t r i e s