DAB e.sybox Series, Руководство пользователя

Страница: 17 / 54

ENGLISH
GB
73
4.2 - Manual reset of error conditions 4.2 - Manual reset of error conditions
In error status, the user can cancel the error by forcing a new attempt, In error status, the user can cancel the error by forcing a new attempt,
pressing and then releasing the + and – keys. pressing and then releasing the + and – keys.
4.3 - Self-reset of error conditions 4.3 - Self-reset of error conditions
For some malfunctions and blockage conditions, the system attempts au
-
For some malfunctions and blockage conditions, the system attempts au
-
tomatic self-reset. tomatic self-reset.
The auto self-reset procedure concerns in particular: The auto self-reset procedure concerns in particular:
“BL” Blockage due to water lack “BL” Blockage due to water lack
“PB” Blockage due to line voltage outside specifications “PB” Blockage due to line voltage outside specifications
“OT” Blockage due to overheating of the power stages “OT” Blockage due to overheating of the power stages
“OC” Blockage due to motor overload “OC” Blockage due to motor overload
“BP” Blockage due to fault of the pressure sensor “BP” Blockage due to fault of the pressure sensor
For example, if the system is blocked due to water lack, the device auto
-
For example, if the system is blocked due to water lack, the device auto
-
matically starts a test procedure to check whether the machine is really matically starts a test procedure to check whether the machine is really
left definitively and permanently dry. If during the sequence of operations left definitively and permanently dry. If during the sequence of operations
an attempted reset is successful (for example, the water comes back), the an attempted reset is successful (for example, the water comes back), the
procedure is interrupted and normal operation is resumed. procedure is interrupted and normal operation is resumed.
Table 21 shows the sequences of the operations performed by the device Table 21 shows the sequences of the operations performed by the device
for the different types of blockage. for the different types of blockage.
Automatic resets of error conditions
Display indica-
tion
Description Automatic reset sequence
BL
Blockage due to water
lack
- One attempt every 10 minutes for a
total of 6 attempts
- One attempt every hour for a total of
24 attempts
- One attempt every 24 hours for a total
of 30 attempts
PB
Blockage due to line
voltage outside speci
-
fications
- It is reset when it returns to a specific
voltage
OT
Blockage due to over
-
heating of the power
stages
-It is reset when the temperature of
the power stages returns within the
specifications.
OC
Blockage due to motor
overload
- One attempt every 10 minutes for a
total of 6 attempts
- One attempt every hour for a total of
24 attempts
- One attempt every 24 hours for a total
of 30 attempts
5 - INVERTER ELECTRONIC CONTROL AND USER INTERFACE 5 - INVERTER ELECTRONIC CONTROL AND USER INTERFACE
The inverter makes the system work at constant pressure. This The inverter makes the system work at constant pressure. This
regulation is appreciated if the hydraulic plant downstream from regulation is appreciated if the hydraulic plant downstream from
the system is suitably sized. Plants made with pipes with too the system is suitably sized. Plants made with pipes with too
small a section introduce load losses that the equipment cannot small a section introduce load losses that the equipment cannot
compensate; the result is that the pressure is constant on the compensate; the result is that the pressure is constant on the
sensors but not on the utility. sensors but not on the utility.
Plants that are excessively deformable can create the onset of Plants that are excessively deformable can create the onset of
oscillations; if this occurs, the problem can be solved by adjusting oscillations; if this occurs, the problem can be solved by adjusting
the control parameters “GP” and “GI” (see par 7.6.4 - GP: Pro
-
the control parameters “GP” and “GI” (see par 7.6.4 - GP: Pro
-
portional gain coefficient and 7.6.5 - GI: Integral gain coefficient). portional gain coefficient and 7.6.5 - GI: Integral gain coefficient).
5.1 - Operation with control unit 5.1 - Operation with control unit
e.sybox, alone or in a pumping unit, may be connected by means of wire
-
e.sybox, alone or in a pumping unit, may be connected by means of wire
-
less communication to a remote unit referred to below as a control unit. less communication to a remote unit referred to below as a control unit.
Depending on the model, the control unit offers a variety of functions. Depending on the model, the control unit offers a variety of functions.
The possible control units are: The possible control units are:
• e.sylink • e.sylink
Table 3: Self-reset of blockages