Regada MO 3, Инструкции по установке, обслуживанию и техническому обслуживанию, Страница: 6 / 56

4 MO 3, MO 3.3, MO 3.4, MO 3.5
1.5 Under-guarantee and after-guarantee service
Our customers are provided with professional service of our firm in installation, operation, service,
maintenance, revision and help in troubleshooting for all our products.
Under-guarantee service is performed by the service department of the production plant, or by a
contracted service centre according to a written claim.
In case of occurring of any fault please let us know it and state:
•
type code
•
serial number
•
ambient parameters (temperature, humidity...)
•
duty cycle including frequency of switching
•
type of switching-off (position or torque)
•
set switching-off torque
•
type of fault - description of claimed fault
•
it is recommended to place also Installation certificate.
It is recommended to have after-guarantee service performed by the service department of the
production plant, or by a contracted service centre.
1.5.1
Lifetime of actuators
The lifetime of an electric actuator (EA) is at least 6 years.
EA used for closing mode (closing valves) comply with the requirements for at least
15,000 working cycles
(cycle C – O – C at 30 revolutions per operating stroke:for multi-turn EA)
EA used for regulating/modulating operation (control valves) comply with the below stated numbers of operating
hours at the total number of 1 million start-ups:
Switching frequency
max. 1,200 [h
-1
] 1,000 [h
-1
] 500 [h
-1
] 250 [h
-1
] 125 [h
-1
]
Minimal lifetime expectancy – number of operating hours
850 1,000 2,000 4,000 8,000
Time of
net operation is min. 200 hours, max. 2,000 hours.
Lifetime at operating hours depends on loading and switching frequency.
Note : High switching frequency does not ensure better regulation. Setting of regulation parameters should be
therefore made with the inevitably necessary switching frequency needed for the process in question
1.5.2
Lifetime of single-phase electric motors:
There are single-phase electric motors from SIEMENS - range ILF7 ... with run and start capacitor built-in
version of actuators with single phase electric motor. The manufacturer guarantees 100.000 starts for the 4 pole
electric motors (approx. 1400 rpm/min).
Attention: Reversing of actuators in design with those single phase motors is possible only after the total stop of
the output of actuator. Otherwise, there may be a continuation of the movement of the output of actuator, even
after the reversing process in the direction what was before the reversing process. Maximum number of motor
stop can be 500 per hour.
Estimated duty cycles of actuators equipped with those electric motors feel free to consult with the Sales
department of REGADA s.r.o.