NORTH AMERICA
6.5
Signal lamp unit (continued)
Every anomaly has a different number of flashes of the RED
led on
the logic board.
Working State
Effect
No.
of
Flashes
Flashing
Duration
(sec)
Pause
Between
Flashes
(sec)
Pause
Between
Flashing
Cycles
(sec)
Torque limit alert
Actuator Block
1
0.1
0.3
1
Max torque alert
Actuator Block
2
Below min. Threshold
Voltage Alert
Re-enable
3
Time-out operation
intervention alert
Actuator Block
4
Fault driver alert
Actuator Block
5
WARNING: to reset the anomalies it is recommended to shut off the
power supply for more than 10 seconds to ensure the full discharge
of the capacitors on the electronic boards.
6.6
Setting actuator stop positions (Fig.7)
The opening or closing operation of the electric actuator is reached
when the black cams push the electromechanical limit switches on
the logic board (POS1 for closing position and POS2 for opening
position). The signal of opening and closing operation is obtained
when the blue cams push the electromechanical limit switches on
the logic board.
The procedure necessary to adjust the actuator stroke is the follow-
ing:
1. Make sure that the power supply is off;
2. Remove the upper cover of the actuator (paragraph 6.0);
3. To simplify the operation it is recommended to remove the re
movable parts of the terminal block “G” and “R”;
4. Make sure that the automated device (for instance the valve)
is in the “OPEN” position. For a more accurate and precise
adjustment, use the manual override “H” (paragraph 7.0);
5. Loosen the set screw in the cam 1 (black color), and rotate the
cam until it pushes the limit switch POS2 and until the “click”
of the electromechanical micro switch. Then tighten the set
cam screws;
6. Loosen the set screw in the cam 3 (blue color), and rotate the
cam until it pushes the limit switch FCU2 and until the “click
of the electromechanical micro switch). Then tighten the set
cam screws;
7. Power on the actuator and carry out the closing operation;
8. Wait for the completion of the operation, then shut off the
power supply;
9. Make sure that the automated device (for instance the valve)is
in the “CLOSED” position. For a more accurate and precise
adjustment, use the manual override “H” (paragraph 7.0);
10. Loosen the set screw in the cam 2 (black color) and rotate the
cam until it pushes the limit switch POS1 and until the “click” of
the electromechanical micro switch. Then tighten the set
cam screws;
11. Loosen the set screw in the cam 4 (blue color) and rotate the
cam until it pushes the limit switch FCU1 and until the “click”
of the electromechanical micro switch. Then tighten the set
cam screws.
Fig.7 Particular of the cams of limit switches
CAM 4
CAM 3
CAM 2
CAM 1
6.7
Closure of electric actuator enclosure (Fig. 1)
1. After making the proper connection, please proceed to the as-
sembling of cover “A”, by paying close attention not to hit any
electronic parts;
2. Re-assemble the position indicator “B” on “OPEN ” blocking it
by screw “C”;
3. Make sure that the tightening of cables is secure, by screwing
the gland “E”;
4. Finish the closing of cover “A” by screwing in the fasteners “D”.
Fig.1 External view of the actuator
A
D
C
H
E
B
7
IOM |
85 SERIES ON/OFF ELECTRIC ACTUATORS
