CALEFFI DIRTMAGCLEAN 579 Series, Руководство по программированию

Страница: 6 / 14

5
Problem
1 Temperature 1 above maximum value set for drain
2 Temperature below minimum value, risk of frost
3 Pressure above maximum absolute level
4 Temperature above maximum absolute level
5 Discharge air vent blocking condition
6 Filling not completed error
7 Incorrect offset detected
8 Error: no power supply
Drain temperature limitation
The system has a function to reduce the temperature of drainage water. During the cleaning cycle, if the system detects that the medium temperature
is higher than the set temperature, the system operates relay G.OUT, which remains energized until the drainage cycle ends. Energization of relay G.
OUT must be employed by the user as a method of reducing the drain water temperature of the device, for example through a valve that injects cold
water into the drain. Check the local regulations in force.
Faults
Abnormal operating conditions do not cause the device to stop operating but are shown on the display, making it possible to prevent possible more
serious problems (red LED flashing on the front panel). Faults are also recorded in a specific memory zone accessible via Modbus. The fault signal
persists until the user performs an alarms/faults reset, operating on the user interface or via Modbus, or when the fault in question is resolved. Contact
Caleffi technical service if you are unable to solve the problem unassisted.
Alarm management
The alarms (or blocking alarms) show conditions that prevent correct operation of the device or conditions of danger for the system. Following
identification of a possible hazard condition, the system assumes standby status and remains in a condition of safety to limit any possible damage or
malfunctions of the main system. Signalling of the alarm state is provided by the user interface (red LED steady on), and via the alarms signalling relay
(ALARM relay, closing), and via Modbus, by means of specific registers that indicate the type of alarm identified. The alarms are recorded in a suitable
memory zone and can be read and checked via ModBus. In the case of non-resettable alarms, following the corrective action an “alarms reset” is
required to allow the device to perform a loading cycle and assume correct operating status: during this phase, check that there are no anomalous
operating conditions.
NOTE: On the main page the error is indicated, e.g. as E01, while in the alarms history only the identification number 01 is shown.
Identification
number
Identifier Cause Corrective action
E 01
low pressure alarm on
sensor 1
system not pressurized
(e.g. start up in “no load” condition)
bring the circuit up to pressure,
vent the circuit and perform an alarms reset operation
sensor not inserted correctly
depressurize the system and, in conditions of safety, check the
correct insertion of pressure sensor P1, if necessary removing
it momentarily and then refitting it in its seat. Clear the alarm
with an alarms reset operation.
low pressure in device
check that any shut-off valves installed upstream from the
device are open, check the direction of flow and perform an
alarms reset
E 02
low pressure alarm on
sensor 2
system not pressurized
pressurize the system
and perform an alarms reset.
sensor not inserted correctly
depressurize the system and, in conditions of safety, check the
correct insertion of pressure sensor P1, if necessary removing
it momentarily and then refitting it in its seat. Clear the alarm
with an alarms reset operation.
E 03 leak alarm
additives filling cap not screwed on
correctly
check and restore the seal of the additives filling cap. Perform
an alarms reset
seepage from air vent valve
Temporarily close the air vent valve cap and isolate and empty
the device and then replace the dirty air vent valve. Perform an
alarms reset.
seepage from drain ball valve
disconnect the electric supply, isolate and empty the device
and replace the drain ball valve. Reconnect the electric supply
and perform a device reset.
generic seepage
check all the seals and tighten wherever possible
or restore the seal
E 04 seepage alarm
inlet valve for domestic water
washing dirty and seeping.
Close the inlet valve and empty the device. Disconnect the
electric supply and close the shut-off valve upstream from the
domestic water inlet. Replace the domestic water shut-off
solenoid valve. Restore operation of the device and perform an
alarms reset
6