9
E13
Minimum dP alarm value ranging from F12
to F21 (warning: the alarm is generated
with a fixed delay of 60 seconds).
Check the status of the filtering elements.
E14
Indicates that a valve in short circuit has
been excluded from the cycle. The
signaling of the code E14 alternates with
the indication of the interested output is
shown as Uxx where xx is the number of
the output and the value of dP.
An output is considered a short circuit if
not responding for 3 following activations.
An activation without error resets the
counting.
Switch the device off and back on after having
checked the solenoid valve system.
Description Of Operation
The installed SW version and the symbol
---
, meaning that coherence between settings
stored in E2Prom and the set jumpers is being checked, will appear on the display when
the economiser is powered up. A corresponding error code will appear in case of
discrepancies between settings (see Alarms Table). Only editing functions will be allowed
on the unit. The operator may switch off the unit and configure the jumpers correctly.
Symbol
0_0
will appear on the display if the test is entirely successful. The following
pages will then appear:
•
In automatic mode (F01=1):
o
dP value alternating with OFF if the enabling contact (14-15) is open
o
dP value alternating with -0- if the enabling contact (14-15) is closed and
the fan is off
o
dP value only if the fan is enabled and active.
•
In manual mode (F01=0):
o
OFF if the enabling contact is open (14-15)
o
-0- if the enabling contact (14-15) is closed and the fan is off
Manual Operating Mode F01=0
The economiser will work as a programmable cycle sequencer in manual mode. The
connected outputs will be activated at the programmable frequencies. Manual mode can
be activated by accessing the configuration menu and setting F01 to 0. F02 and F03 will
set the activation time and the pause time, respectively.
Automatic Operating Mode F01=1
By selecting automatic mode (F01=1), the economiser will work autonomously can carry
out the pneumatic washing cycle only when needed. The device will start the washing cycle
if the obstruction is higher than Threshold_dP_Start (F08). Washing is suspended when
obstruction drops under Threshold_dP_Stop (F09) level until it reaches a value higher than
the Threshold_dP_Start threshold once again. When washing is active, the economiser
respects the times set in F02 (operating time) and F03 (pause time).
Automatic Mode With Forced Cycle F01 = 2
Identical to the automatic mode, except for the fact that it is possible to obtain a cleaning
cycle with the activation of the solenoid valves connected without reaching the
Threshold_dP_Start (F08). The forced cleaning interval may range from 1 to 999 h and can
be selected through function F22 and F23.
