TROUBLESHOOTING
PROBLEM
CAUSE
SOLUTION
The motor reducer
does not work
No voltage to
the motors
Check the presence of voltage at the input clamps
power supply to the motor
Check that the power supply cable is not interrupted.
(the power supply cable must be replaced
by an authorised technician)
Check the fuses on the control unit
Incorrect regulation
of the slowing point
Repeat the programming of work times, paying attention to set
slowing at no less than 50÷70cm from the stop.
No voltage to the
control unit
Check the network fuse and the presence of network voltage
Check the network voltage -if present-
Meeting the stops
makes movement
reverse
Slowing speed set with
"SLOW" potentiometer
too low
INCREASE THE "RALL" POTENTIOMETER: the "RALL"
potentiometer, as well as the speed also decreases the power to
the motor. For this reason a regulation that is too low can cause
the gate to stop before reaching the mechanical stops. This stop
also depends on the external environmental features, which vary
greatly between summer and winter and between the first hours
of the day with respect to the central hours. For this reason the
gate may stop occasionally.
Repeat work times programming by setting a quicker speed with
the "RALL” potentiometer.
The gate
occasionally does
not complete the
entire slowing
period, but blocks
before
Intervention of the
amperometeric
control
During movement
and normal speed
the gate inverts
movement
The motor moves
with difficulty
Insufficient motors
power supply
THE POWER SUPPLY CABLES TO THE MOTORS MUST
HAVE ADEQUATE SECTION: we recommend cables measuring
2
2.5mm for 24vdc motors. cables with smaller section cause
large voltage drops that make the motor speed force decrease,
especially on the motor furthest away from the control unit
INCREASE THE "AMP" POTENTIOMETER: the "AMP"
potentiometer regulates the amperometeric control intervention,
which intervenes every time that the gate stops moving for a brief
period of time due to external factors-such as gusts of wind for
example-. Therefore, in the case of particularly windy areas, it is
recommended to exclude the amperometric control by taking the
potentiometer to MAX
INCREASE THE "VELOC" POTENTIOMETER: the "VELOC"
potentiometer regulates the speed of the motors, decreasing the
voltage. check the correct functioning by taking the
potentiometer to MAX
C
R
/4
1
/2
4
I
E
0
3
1
2
1
1
0
3
2
1
A
4
V
f/
r
-I
S
C
R
4
1
-2
4
-E
Intervention of the
amperometric control
INCREASE THE "AMP" POTENTIOMETER: the "AMP"
potentiometer regulates the amperometeric control intervention,
which intervenes every time that the gate stops moving for a brief
period of time due to external factors-such as gusts of wind for
example-. therefore, in the case of particularly windy areas, it is
recommended to exclude the amperometric control by taking the
potentiometer to MAX
E L E T T R O N I C A P A D O V A
I
S
IN
C
E
1
9
6
5
M A D E I N I T A L Y
VIA ENRICO FERMI, 22
35020 LEGNARO - PADOVA
I T A L I A
PHONE +39 049 79 08 58
FAX +39 049 88 30 529
E-MAIL [email protected]
WEB www.serai.com
TERMS OF GUARANTEE
The company reserves the right to make modifications to the equipment without prior notice thereof. SERAI products are covered by a standard guarantee with a term of 24 months.
Coverage starts on the date on which the tax document constituting proof of purchase is issued and guarantee services shall be provided on the company's premises at Legnaro - PD -
or at the Authorised Service Centres. Carriage costs shall be borne by the Customer.
CE CONFORMITY DECLARATION
SERAI spa declares that the product CR/41/24 has been desifned and manufactured according to the above mentioned directives and standards
WEEE DIRECTIVE 2002/96/EC
This appliance was manufactured after 13/08/2005. To protect the environment: when the equipment is no longer needed, take it to a special WEEE (Waste Electric and
Electronic Equipment) collection centre. Do not dispose of it with normal household waste.
