Table of Contents
Advertisement
4.15
Servomotor (662R5...)
Warnings
To avoid accidents, material or environmental
damage, observe the following instructions!
Avoid opening, modifying or forcing the actua-
tors.
WARNING
All interventions (assembly and installation operations,
assistance, etc.) must be carried out by qualified personnel.
Before modifying the wiring in the servomotor connection
area, fully disconnect the burner control device from the
power supply (omnipolar separation).
To avoid the risk of electrocution, protect the connection ter-
minals in a suitable manner and correctly fix the cover.
Check the wiring is in order.
Falls and collisions can negatively affect the safety func-
tions. In this case, the unit must not be operated, even if it
displays no evident damage.
Assembly notes
The connection between the actuator command
shaft and the control element must be rigid, with-
WARNING
out any mechanical play.
Installation notes
The static torque is reduced when the electrical supply of the
actuator is switched off.
During the maintenance or replacement of the
actuators, be careful not to invert the connec-
tors.
WARNING
Avoid condensate, ice and water leaks from form-
ing!
WARNING
4.16 Calibration of the thermal relay
The thermal relay serves to avoid damage to the motor due to an
excessive absorption increase or if a phase is missing.
For calibration 2), see the table in the wiring diagram.
To reset, in case of an intervention of the thermal relay, press the
"RESET" button 1)(Fig. 10). The red "TEST" button 3) opens the
NC (95-96) contact and stops the motor.
The automatic reset (Position "A" button 1) can be
dangerous. This operation is not anticipated in the
burner's operation, leave it always on "H". There-
fore do not position the "RESET" button 1) on
CAUTION
"A".
20171988
Technical description of the burner
16
GB
D8271
Technical data
Model
Adjustment time
Rotation direction from
0° to 90°
Nominal torque (max)
Holding torque (max)
Weight
Degree of protection
Environmental conditions:
- climatic condition
- mechanical condition
- temperature range
Electric safety
2
20073932
662R5...
5 sec / 90°
left - by the motor shaft side
3 Nm
3 Nm
1,4 kg circa
IP54 according to DIN EN 60529-1
Classe 3K5 (DIN EN 60721-3)
Classe 3M5 (DIN EN 60721-3)
-20...+60 °C (dew not allowed)
Protection class 2
according to DIN EN 60730
1
3
Fig. 9
Tab. J
Fig. 10
Advertisement
Table of Contents
