13.3 OVERTEMPERATURE PROTECTION
This protection will trip if the temperature around the controller exceeds
0
70
C for at least 15 seconds.
When this alarm is triggered:
– the initials "A.L.A." will be displayed in turn with "
temperature read (these digits will also be separated by ...).
Ex.
– the ALARM LED situated on the front panel of the controller will
light up.
– the alarm relay contact connected to the controller terminal block
will open.
– the controller will activate the procedure for rapid disconnection
of all steps and go into a standby status (in this status the controller
will not work).
After 30 minutes all these actions will be cleared and the controller will
automatically resume operation (auto-reset status
A.r.), though the incident will continue to be signaled via the display,
which will show "A.L.A." in turn with "
To clear the display press ALARM/RESET.
This protection is also active in the manual mode and even if no
capacitors are switched on.
13.4 PROTECTION AGAINST EXCESSIVE HARMONIC DISTORTION
This protection will trip when the rate of current harmonic distortion
may pose a hazard to the power factor correction capacitors.
84
°
.C.. " and the last value measured.
°
.C.. " and the last