Hydrovane Pro - Additional Functions

3.0 Additional Functions
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CC1092267A 11
3 Extended function s
3.1 [CONTROL MENU] sub-menu
The most important parameters of the [CONTROL
MENU] menu have already been explained in Section
1.5 Operator Controls. This section simply contains an
overview and explanation of additional functions.
3.1.1 Operating modes
Go to the [CONTROL MENU] sub-menu, use the key
to go to the AUTOMATIC OPERATION menu item.
Press the key, AUTOMATIC OPERATION starts to
flash. Use the key to switch to CONTINUOUS
OPERATION, confirm selection by pressing the key.
You can choose from two operating modes:
AUTOMATIC OPERATION
is the most economical of
your compressor's operating modes. If there is no
system demand, the compressor is shut down after the
RUN-ON TIME. The control system automatically
recognises when compressed air is needed again. The
unit then starts up straight away.
CONTINUOUS OPERATION
is only needed for some
special applications. When in this operating mode, the
motor is not shut down if there is no system demand.
The compressor runs continually in off-load mode when
there is no pressure requirement.
3.1.2 Second pressure range (p
2
)
The difference between the maximum and minimum
pressure is called the pressure range. The second
pressure range function allows you to use another
pressure range in addition to the pressure range
already set (see Section 1.5). This could be used for
example to implement night-time running at lower
pressures.
The settings for the second pressure range function are
in the [CONTROL MENU] sub-menu. Menu items are:
p
2
CUT-OUT POINT 8.5 bar (123 psi)
p
2
CUT-IN POINT (SS) 7.5 bar (109 psi)
p
2
TARGET PRESSURE (RS) 8.0 bar (116 psi)
p
2
TIMER CONTROL OFF
Use p
2
CUT-OUT POINT and p
2
CUT-IN POINT or p
2
TARGET PRESSURE to set the pressure switching
points. Use the p
2
TIMER CONTROL ON menu item to
activate the timer for the second pressure range.
You can also activate / deactivate the second pressure
range using an external potential-free contact (see
Section 3.5).
Section 3.3.2 contains a description of how to set the
timer for the second pressure range.
Note
Values shown are examples only, those used in your
unit may be different.
3.1.3 Dryer pre-run
If using an external dryer, you can provide the dryer
with a specified pre-run time. The compressor is then
only started after this pre-run time.
To set the pre-run time, go to the [CONTROL MENU] sub-
menu. From there use the key to go to the DRYER
PRE-RUN 0min menu item. Once you have pressed the
key, the 0min value starts to flash. Use the or keys
to set the pre-run time you want, confirm your entry using
the
key.
3.1.4 RS 485 communication
You can perform the settings for RS 485 communication in
the [CONTROL MENU] sub-menu.
These menu items are of relevance.
RS485-PROTOCOL ModBus
RS485-BAUDRATE 19200
RS485-ADDRESS 1
The HYDROVANE Pro has a serial RS485 interface. This
interface uses the ModBus RTU protocol.
ModBus interfaces and drivers are available from many
well-known manufacturers of programmable logic
controllers (PLC).
You can set the baud rate you want in the RS485-
BAUDRATE menu item.
You can set the participant number you want in the
RS485-ADDRESS menu item.
Note
Values shown are examples only, those used in your unit
may be different.
3.1.5 Automatic re-start
Caution
In this operating mode, the compressor may start
automatically at any time and after an unlimited length
of power loss.
Always fit the compressor with warning signs, lock the
room containing the compressor and instruct your
staff.
Fit the isolator specified by EN60204 and fit the
appropriate warning signs on it.
After a power loss that has not exceeded the preset time,
the unit can re-start automatically.
The settings needed must be undertaken in the [CONTROL
MENU] sub-menu. Menu items are:
AUTO RESTART OFF
POWER LOSS TIME Xs
START-UP DELAY Xs
Use the AUTO RESTART ON menu item to activate the
automatic re-start.
You can state the time for which a power loss may last and
after which the compressor is to automatically re-start in
the POWER LOSS TIME menu item. The time can be set
within a period of 2 - 999 seconds. If the power loss lasts
longer than the time you have set, the unit does not
automatically re-start. The POWER LOSS. fault message
then appears on the display