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1. DELCOS 3100 Electronics
32
1.6
Maintenance intervals
Danger
When programming the system in standby mode,
i.e. LED a flashing, the compressor can start
automatically at any time!
The maintenance intervals can be programmed
specifically to suit your particular application conditions
as, for example, the degree of air-filter soiling depends
on intake conditions
In the factory setting, therefore, the values set for
maintenance intervals in the [MAINTENANCE SCHED.]
menu are blocked, the plaintext field shows [- - - -].
You can set your own specific maintenance intervals
for air filter, water filter and engine grease yourself
(see Chapter 1.3.8) and thus partially replace your
maintenance log. The settings for maintenance intervals
can be programmed in a range from 0 to 9999 hours.
If you do not want the maintenance intervals to be
monitored, program a value above 9999 hours. The
displays shows [- - - - ], i.e. this/these maintenance
interval(s) is/are blocked.
Once the setting reaches 0 hours, the plaintext field
shows [MAINTENANCE ELAPSED] and LED f
(maintenance) flashes at the same time.
You should then carry out the planned maintenance
activities because failure to perform maintenance work
can lead to faults.
The relevant maintenance interval counter reading is
shown in the [MAINTENANCE SCHED.] menu.
It is possible that negative, i.e. exceeded maintenance
intervals, will be displayed.
For maintenance intervals, it is also possible to
activate/deactivate shutdown once a maintenance
interval has elapsed to -100 hours. If any of the
intervals reaches the shutdown threshold, the system
will be shut down with group fault LED h in addition to
LED f. The [FAULT MAINT PER] message is entered in
the fault memory as well as in the plaintext field.
After completing maintenance work, the maintenance
interval should be reprogrammed and the
[maintenance] fault should then – for restarting - be
acknowledged by pressing the
key.
1.7
Operating modes
1.7.1
Automatic and continuous operation
For this, go to the [CONTROL MENU] menu and select
either [AUTOMATIC OPERATION] or [CONTINUOUS
OPERATION] (see Chapter 1.3.8 changing values).
The [AUTOMATIC OPERATION] mode is the most
economical operating mode because the control system
shuts the compressor down when compressed air is no
longer needed (standby) and restarts the system
automatically when compressed air is required again.
The [CONTINUOUS OPERATION] mode is only
required in specific applications. Continuous operation
prevents the drive motor from shutting down when air
consumption stops. The compressor then continues to
run in the off-load operating mode. In contrast to the
automatic operating mode, continuous operation allows
you to start the system although no network pressure is
being requested.
1.7.2
Motor control operating modes
(version RS only)
The motor control operating mode can be set in the
[CONTROL MENU] menu.
1.7.2.1
Speed regulation ON
This is the machine's default setting in which volumetric
flow is adjusted as a function of motor speed.
When the converter is ready, the "setpoint > 3.5mA"
signal is present and no [WARNING MS-BUS:A02] or
[WARNING MS-BUS:A06] is given, you can switch to
[SPEED REGULATION ON] in the menu. The setpoint
speed is constantly calculated and output.
If the "setpoint > 3.5mA" feedback signal fails to arrive,
the [WARNING SPEED-SIG.] is triggered, switching
over to [SPEED REGULATION OFF].
It is also possible to switch over to [SPEED
REGULATION OFF] while operation is in progress.