DOMEL
EC – Controller Compacto
V2.0, July 2014
Operating and installation Instructions
10
3.3.
Protections
Thermal protection:
The electronics are equipped with reducing thermal protection. This
function is a temperature limiter which reduces the output power, when temperature on the
controller rises over
75°C. In this case relay error function set output error.
In the event that the temperature of controller is still rising (over 105
°C) the controller stops the
motor.
When the temperature controller falls below 75°C, the motor automatically restarts.
Thermal protection is disabled in fire mode state.
Under and over voltage:
The electronics are equipped with under and over voltage
protection. Electronics shutdown when the main voltage is not in the required range. See
mechanical and electrical specification.
Blocked rotor protection:
The electronics are equipped with blocked rotor protection when
the rotor of motor is blocked or it is impossible to rotate it. Electronics automatically retries 25
restarts, than a manual restart by disconnecting the power supply is required.
Motor phase fail / lose:
The electronics are equipped with motor phase fail protection in
event that one of phase motors is damage or missing. In this case electronics stops the motor
immediately. Protection is disabled in fire mode state.
Phase overcurrent protection:
The electronics are equipped with phase overcurrent
protection when current through motor
increases up to 10A. In this event electronics stops the
motor immediately and tries to makes automatically restart.
Rotor failed acceleration:
The electronics sre equipped with rotor failed acceleration
protection when the rotor is damaged or is hard to rotate. Electronics automatically retries 25
restarts for every 1second. If the 25
th
restart is still unsuccessful, then manual restart by
disconnecting the power supply is required.
Note!
Heating the controller over the maximal temperature is not allowed.
Above
105°C electronics stops the motor (not in fire mode state), and
restarts it again when the temperature of controller falls below
75°C.
However, if the controller is overheating and motor was shutdown,
disconnect power supply (safety switch) and wait at least 20 minutes
before you service them. In case of overheating of controller, the
metal parts of them are very hot and could cause serious damage to
your skin.
If controller starts reducing output power during running, this may be
reason of overheating. In this case add small 24V/40mA fan on
controller or ensure air flow through the ribs. Fan can be supplied by
power from controller (chapter 4.2.
– wiring diagram). Overheating
problem appears in the case of installation of the controller in the
space without air flow.