Carel EVD mini, Руководство пользователя

Страница: 31 / 36

31
ENG
“EVD mini” +0300036EN - rel. 1.2 - 23.04.2018
9.5 Network alarm
The digital input configuration parameter can only be set to control
backup from the supervisor. If there is a communication error between
the pCO controller and driver, the digital input status determines whether
to continue control (input closed = the valve remains in the current
position) or stop (input open).
9.6 Alarm table
Alarm code on
the display Red LED Cause of the alarm Reset Effects on control Checks / Solutions
A1 flashes Probe S1 faulty or set alarm range
exceeded automatic Valve closed Check the probe connections.
A2 flashes Probe S2 faulty or set alarm range
exceeded automatic Valve closed Check the probe connections.
E1 flashes MOP protection activated automatic Protection action already
in progress Check parameter “MOP protection:
threshold”
E2 flashes LOP protection activated automatic Protection action already
in progress Check parameter “LOP protection:
threshold”
E3 flashes LowSH protection activated automatic Protection action already
in progress Check parameter “LowSH protection:
threshold”
E4 flashes Low suction temperature automatic No effect Check the threshold parameter.
E5 flashes Chiusura di emergenza: LowSH,
LOP, MOP, bassa T/P di aspirazione,
mancanza di alimentazione automatic Valve closed Reset power supply
E6 flashes Network error automatic Control based on DI Check the wiring and that the pCO is
on and operating
E7 flashes Ultracap module powered at low volta-
ge or low charge automatic No effect Check the wiring, the power supply
and that the minimum recharge time
has elapsed
E8 flashes Emergency closing not completed Manual Valve closed Press PRG/Set or set the corresponding
supervisor variable to 0
EE on steady EEPROM operating and/or unit parame-
ters damaged Replace the
driver/ Contact
service Total shutdown Replace the driver/Contact service
Tab. 9.d