Gardner Denver
12 Advanced Settings
45
12 Advanced Settings
12.1 Setting the Dryer Pre-run Time
If you are using an external dryer which is started with a
programmable output set to “Operating”, you can
programme the GD Pilot TS to start the dryer a few
minutes before starting the compressor so that it can
reach its correct operating temperature.
Touch
Settings > Control > Dryer Pre-Run
Time
. From there you can select a pre-run time
between 0 and 99 minutes.
12.2
RS 485 Communication
There is one RS485 serial communication port (labelled
RS485:1) available on the standard GD Pilot TS which
uses the ModBus RTU protocol.
This can be used to communicate with external
sequencers such as the CompAir SmartAir Master, or
for monitoring purposes.
ModBus interfaces and drivers are available from many
of the well-known manufacturers of programmable logic
controllers (PLC).
You can select the settings for RS 485:1
communication in the menu:
Settings >
Communication
.
The following menu options are available:
RS485:1 Address
You can set the desired address number in this
menu item.
The following options are available:
1
to
31
.
RS485:1 Baudrate
You can set the desired baud rate in this menu
item.
The following options are available:
4800
,
9600
or
19200
12.3 Setting Automatic Restart After
Power Loss
Danger
In this operating mode, the compressor may
start up automatically at any time.
Fit the compressor with warning signs, lock the
room containing the compressor and instruct
your staff.
Fit the main switch specified by EN60204 and fit
the appropriate warning signs on it.
12.3.1
Automatic restart up to a maximum down
time
After a power loss that has not exceeded the pre-set
maximum time, the unit can restart automatically.
To enable this feature, select
Settings > Control
> Auto. Restart Enabled.
The
Home
page changes to indicate that the auto restart
feature has been enabled.
Fig. 39 “Autom. Restart Enabled” indication
Two sub options are shown below this option:
–
Max Power Loss Time x s
–
Restart Delay x s
Max Power Loss Time
In menu item:
Settings > Control > -Max
Power Loss Time
you can set the maximum
duration of a power loss after which the compressor is
to start up automatically. The selected value can be
between 1 and 999 seconds.
If the duration of the power loss exceeds the time you
have set, the unit will not restart automatically. The
Power Supply Failure
fault message then
appears on the display.
Restart Delay After Power Loss
You can also programme a restart delay of 1 to 99
seconds. This is set in the
Settings > Control >
– Restart Delay
menu item and ensures a
staggered start-up if the installation incorporates
several compressors.
A staggered start ensures a more gradual increase in
load on the local power supply.
SM 1774
