Panasonic UJ20 Series User Manual

Also see for UJ20 Series: How to use

Panasonic UJ20 Series User Manual Manual pdf 53 page image

459 Safety Measures9.1 Safety circuitAicure UJ20 is equipped with a safety circuit, which functions as follows, in case of a malfunction oraccident.1) f the cable between the LED head and the controller is broken, an error signal will be output andan error screen displayed.2) If the LED head is short-circuited, an error signal will be output and an error screen displayed.3） If the LED head temperature becomes excessively high, a warning signal will be output with awarning screen displayed.4） If 5 V and GND are shorted by mistake during external terminal connections, the 5 V circuit willstop operation. When the short circuit is removed, the controller will automatically recover. Note,however, that if the short-circuited state lasts for an extended period, this product may bedamaged.