Motor Protection Device - Helios RDEC Série Notice De Montage Et D'utilisation

Installation and Operating Instructions
EN
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WARNING
RD/VD.. EC Ø 180-250
RD/VD.. EC Ø 315-630
RD/VD.. EC – Roof Fans
Controlling multiple EC fans with one potentiometer
In order to control multiple EC fans via the setpoint input "0-10 V", the 10 V DC voltage source must supply the
sum of all setpoint input loads.
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The parallel switching of +10 V DC supplies of multiple EC fans is not permitted!
Depending on the type, multiple EC fans can be controlled with the 10 V DC supply from the fan with a potentio-
meter (PU/A). In this respect, note the technical data for the control inputs and wiring diagram SS-1035.
If an EC supply current is not sufficient, an external 10 V DC voltage source provided by the client can be used
(electrically isolated from the mains power supply).
Alternatively, the universal control system EUR EC from Helios can be used for various control tasks.
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Motor protection device

All RD/VD.. EC types are equipped with energy-saving, maintenance-free EC external rotor motors (protected to IP44/54,
interference-free, ball bearing mounted) with high efficiency. Suitable for continuous operation S1 and insulation class F.
Furthermore, the motors also have an integrated electronic protective function. In this respect, the following functions
are monitored:
– Overtemperature electronics
If the maximum temperature in the electronics is reached, the electronics will automatically reduce the speed.
– Power supply undervoltage
If the mains input voltage falls 20 % below the specified mains voltage, the motor will be deactivated. The fan will restart
automatically when the proper mains voltage returns.
– Power supply overvoltage
If the mains input voltage increases 10 % above the specified mains voltage, the motor will be deactivated. The fan will
restart automatically when the proper mains voltage returns.
– Blocked rotor
If the rotor becomes blocked, the motor will restart after 5 secs (max. 120 secs). The motor will then be deactivated.
However, a fan restart is only possible by switching off the mains voltage for at least 60 secs.
– Overtemperature motor
If a temperature of 75 °C is reached in the motor, the electronics will automatically reduce the speed.
If a temperature of 85 °C is reached in the motor, the motor will deactivate. The fan will only restart when the tempe-
rature falls below 60 °C in the motor.
– Overcurrent fault
A blockage in the impeller during operation and a short circuit in the motor can result in an overcurrent fault. The motor
will be deactivated. A fan restart is only possible by switching off the mains voltage for at least 60 secs.
– Overspeed
If the maximum permissible fan speed is exceeded, the motor will deactivate. A fan restart is only possible by switching
off the mains voltage for at least 30 secs.
– Overtemperature electronics
If the maximum temperature in the electronics is reached, the electronics will automatically reduce the speed.
– Power supply undervoltage
If the mains input voltage falls 20 % below the specified mains voltage, the motor will be deactivated. The fault will be
indicated via the fault signal relay after 10 secs. The fan will restart automatically when the proper mains voltage returns.
– Power supply overvoltage
If the mains input voltage increases 10 % above the specified mains voltage, the motor will be deactivated. The fault
will be indicated via the fault signal relay after 10 secs. The fan will restart automatically when the proper mains voltage
returns.
– Blocked rotor
If the rotor becomes blocked, the motor will restart after 5 secs (max. 120 secs). In case of a second failed attempt.
the motor will be deactivated. The fault will be indicated via the fault signal relay after 10 secs. However, a fan restart
is only possible by switching off the mains voltage for at least 30 secs.
– Overtemperature motor
If the maximum temperature is reached in the motor, the thermal contact will trigger and the motor will deactivate. The
fault will be indicated via the fault signal relay after 10 secs. The fan can only be restarted by switching off the mains
voltage for at least 30 secs.
– Overcurrent fault
A blockage in the impeller during operation and a short circuit in the motor can result in an overcurrent fault. The motor
will be deactivated. The fault will be indicated via the fault signal relay after 10 secs.
A fan restart is only possible by switching off the mains voltage for at least 30 secs.
– Overspeed
If the maximum permissible fan speed is exceeded, the motor will deactivate. The fault will be indicated via the fault
signal relay after 10 secs. A fan restart is only possible by switching off the mains voltage for at least 30 secs.
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