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1. DELCOS 3100 Electronics
17
1.4
Starting up
Danger
When the system is in standby mode, i.e. LED a
flashes, the compressor can start automatically at any
time!
1.4.1
Entering delivery rates
(version RS only)
To calculate the machine's current delivery rate, its basic
delivery rate values must be entered into DELCOS 3100. It
is also necessary to know the delivery rate for base-load
sequencing to work correctly.
This input also serves to calculate output of the current
delivery rate through the analogue output.
1.4.1.1
Setting the maximum delivery volume
[VOL.MAX.]
This is always entered in the [m
³
/min].unit. The maximum
delivery rate is factory-preset. The delivery rate entered is
the one shown on the type plate.
1.4.1.2
Setting the minimum delivery volume
[VOL.MIN.]
This is always entered in the [m
³
/min] unit. The minimum
delivery rate is factory-preset.
Make of converter: WEG
Delivery rate acc. to type plate x min.speed (P133)
VOL.MIN. =
Max.speed (P134)
Specifications on min. sped (P133) and max. speed (P134)
are provided in the technical information relating to the
converter.
Make of converter: Loher
Delivery rate according to type plate x
f
min
VOL.MIN. =
f
max
The specifications on f
min
[Hz] and f
max
[Hz] are provided in
the technical information relating to the converter.
1.4.1.3
Setting the unit of volumetric flow for the
status display [DISPLAY UNITS]
This setting value can be set to [m
³
/min], [cfm] or [m
³
/h].
The status display shows the machine's current volumetric
flow rate. As the LC display only permits a limited number
of characters, the unit displayed is preset. This unit does
not appear on the status display.
1.4.2
Starting the system
Switching on the power supply activates the light-
emitting diode test that must be acknowledged before
starting the system by pressing
key. The system is
started by pressing the
key. Beforehand, however,
all faults must be rectified and acknowledged
The compressor is unable to start at temperatures
below the permissible start-up temperature (see
Chapter 1.3.4 [LIMIT VALUES] menu).
If the compressed-air network reports no requirement
on start-up, the system goes to standby and LED a
flashes. The plaintext field reads [WARNING START
BY ...] with the relevant message (see Chapter 1.2.5).
A safety circuit (start-up protection) also prevents the
drive motor from starting against an internal residual
pressure. Therefore, the compressor merely switches to
standby in this case too. The compressor starts
automatically once pressure falls below the factory-set
start-up protection level or when pressure is requested
by the network.
If the compressor is equipped with the integrated dryer
option, it can be used by programming the value for
[DRYER PRE-RUN] to a value > 0 min in the
[CONTROL MENU] menu. The minimum pre-running
time is shown in the operating instructions of the
integrated dryer. Here as well, the compressor is initially
switched to standby. The compressor starts
automatically once the dryer pre-running time has
elapsed.
On requesting start-up by pressing the
key or on
receiving a switch-on pulse from the remote control, a
check is carried out to ascertain whether the conditions
are given for enabling the motor
If one of the following start-up conditions is missing:
•
Final compression pressure below start-up protection
level
•
Network requesting pressure (in automatic mode
only)
•
Timer enabled for timer ON (timer optional in
Version FS)
•
Dryer pre-running time elapsed. For further
information, see chapter on “Integrated dryer” in the
operating instructions of the compressor system
(option).
The system initially goes to standby (ON key flashes).