Motovario H Serie Instrucciones Para La Instalación Y Uso página 115

Riduttori e Variatori
Istruzioni per installazione ed uso
Thermal protector
The reducers of the sizes and ratios in the tables below are provided with a thermal protector (supplied and
supplied by the customer). It is a PTC probe (see Fig. 1) with a trigger temperature of 120 °C. The customer
shall perform the electric connection to the main electric panel to ensure the resistance thermometer
correct operation regardless of the connections necessary for the system operation. The connection must
apply the positive safety logic. Main powerboard, connections and logic must, taken together, provide a
locking system to prevent, in the event of a shutdown, the unwanted start-up of the device. In case of
intervention of the PTC probe, wait about 10 min. before resetting the main powerboard.
For assembly, refer to "RESISTOR ASSEMBLY INSTRUCTIONS" in (QL0253).
Unit electric characteristics:
Power to sensor
Voltage to sensor
Current to sensor
<280 mW
<30 Vdc
<8 mA
Fig.1 - PTC probe Fig.1 - PTC probe
QL0214 ∕ REV.6
Connection Connection
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