If the start/stop command (8-9) is open, it will show on the display, the message of open command “CO”. In the case of the start/stop command closes (8-9), signalysed by the LED “COM”, turns ON the output relay(17-18), signalyzed by the LED “OUT” and it is seen on the display the indication of the value of the intensity corresponding to the motors consumption.
If the minimum intensity limit is reached by a period of time (Td) superior to 4 seconds, the output relay (17-18) turns OFF and it indicates on the display, intermittently, the low intensity error message “EIL” and the remaining period of time (minutes) for the automatic restart to happen. The automatic restart will be tried 3 times, with the first 2 intervals of 5 minutes (value preset at the factory, which can be changed by the user), being the last reset tried after 99 minutes, after this, the relay will shut down definitely, leaving the message of low intensity error “EIL”. The reset of the relay will only be possible pressing the reset key, interrupting the start/stop command or by cutting OFF briefly the power supply.
If the maximum intensity limit is exceeded through a period of time (Td) superior to 4 or 8 seconds, accordingly to the verified overcharge, the output relay (17-18) will turn OFF, indicating on the display the overcurrent error message “EIH”, and the alarm output (15-16) turns ON, being signalysed by the LED “AL”. The automatic re-start may only be made manually, by pressing the reset key or by momentarily cutting OFF the power supply.
If the operating period of time of the motor exceeds the maximum programmed limit, it will appear on the display, intermittently, the message "EOH", and the period of time occurred (minutes) and the tension value. The alarm output (15-16) is activated.
When, in a 5 minute period it is verified an excessive amount of starts, the alarm output (15-16) is activated for 1 minute, indicating on the display, intermittently, the error message “ESH” and the electric current’s value. That information will be automatically disabled when the starting procedure is normalized. When, in a 15 minute period of time, it is verified an excessive amount of starts, the output relay (17-18) will turn OFF, indicating on the display the error message “ESH”, and the alarm output (15-16) will be active. The relay’s rearm may only be made manually by pressing the reset key or by momentarily cutting OFF the power supply.
The limit values for the tension are pre-defined in 195 V for the minimum tension and 245 V for the maximum tension. Exceeding these limits will not change the relays operation, causing this only to indicate an intermittent error message of low-tension “EUL” of high-tension “EUH”, respectively.