FAAC 844ER, Manual

Page: 15 / 22

32
M
A B
Fig. 46
Fig. 45
Fig. 44
Fig. 43
7. FINAL OPERATIONS
At end of installation, apply the danger sticker on the top of
the cover (Fig. 45).
6.7. CHECK OF STOP POINTS
Take care over the setting of the post-limit-switch deceleration
and braking: If deceleration is too long and braking is insufficient,
the reference fitted on the gate's rack (magnet or steel plate)
can overtake the sensor until the latter is disengaged. When
the gate stops, check if only the limit-switch involved is engaged.
The relevant LED must be OFF - if it went OFF and then ON
again, or if both the limit-switch LEDS are OFF, you must reduce
the post-limitswitch deceleration value and/or increase braking
value (see par.5.5.2).
6.8. SAFETY DEVICES AND ACCESSORIES CHECK
Check correct operation of all the safety and anti-crushing
devices (ENCODER sensor), and of the accessories used on the
system.
Snap-fit the side panels, fit the equipment's cover and fit the
cover with the supplied screws (Fig. 46).
Remove the vent stop screw (fig. 47).
Hand the "User's Guide" to the Customer, explain correct
operation and use of the gearmotor, and indicate the
potentially dangerous areas of the automated system.
Notes on plate positioning
• To ensure correct operation, allow at least 2 cm from the
mechanical stop limit in the gate stop position. Carry out this
check after determining the values of the pre- and post-limit
switch decelerations (see par. 5.5.2.) and after running at least
one complete cycle of the automated system.
• The distance between the limit-switch and the plates must
be < 5mm.
6.5. CHECK OF MOTOR CONNECTION
Check if the motor wiring
i s a s s h o w n i n F i g . 43
(standard connection).
LEDS LIGHTED OFF
OP-A Command activated Command inactive
OP-B Command activated Command inactive
FC1 Limit-switch free Limit-switch engaged
FC2 Limit-switch free Limit-switch engaged
FSW OP Safety devices disengaged Safety devices engaged
FSW CL Safety devices disengaged Safety devices engaged
STOP Command inactive Command activated
SAFE Safety devices disengaged Safety devices engaged
ENC Flashes while the motor rotates
NB.: The status of the LEDs while the gate is closed at rest are shown in bold.
If opening direction is leftward, the status of LEDS FC1 and FC2 is reversed.
6.4. CHECK OF INPUTS
The table below shows the status of the LEDs in relation to to the
status of the inputs.
Note the following:
L
ED LIGHTED
= closed contact
L
ED OFF
= open contact
Check the status of the LEDs as per Table.
Tab. 2 Operation of the signalling status LEDs
BROWN
BLACK
BLUE
J6
MOT 2
MOT 1
MOT
COM
6.6. ADJUSTMENT OF MECHANICAL CLUTCH
In addition to its electronic safety devices (encoder and force
adjustment), the 844 operator is also equipped with a
mechanical clutch.
For gate force and the encoder, please consult paragraphs
5.5.1 and 5.5.2.
Procedure for adjusting the operating threshold of the
mechanical clutch (you are recommend to set it to conform
with current regulations):
1) Cut electrical power to the automated system.
2) Keep the motor shaft locked with a wrench and turn the
clutch adjustment screw with an Allen wrench or screwdriver
as shown in Fig. 44 Ref 44.
To increase torque, turn the screw clockwise.
To reduce torque, turn the screw anti-clockwise.
Ü
The operator is supplied with the clutch set to maximum
level. Therefore, you must initially turn the screw anti-
clockwise to reach the best setting.
3) Power up the automated system and check that the torque
you have just set is correct.
Ü
The operator is supplied as standard with a clutch adjustment
spring for gates up to 1000 kg. For heavier gates, use the
supplied alternative spring. For spring replacement
instructions, see Fig. 44 Ref. B.