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1. DELCOS 3100 Electronics
19
1.4.9
Group-fault relay
A floating contact in the control system (see electric circuit
diagram) reports system faults.
The load applied to the group-fault relay must be no more
than 250 V/1 A.
1.4.10
Speed ON message (version RS only)
A floating contact in the control system (see electric circuit
diagram) reports that the motor is running. Speed in
dependent on compressed-air consumption.
The load applied to the group-fault relay must be no more
than 230 V/4 A.
1.4.11
Running-hours/loaded-hours counter
The systems running and loaded hours can be retrieved at
any time.
To do this, go to the [MAINTENANCE SCHED.] menu and
select the [TOTAL RUNNING] or [LOADED HOURS] menu
option (see Chapter 1.3.1). This displays the current
counter reading in each case.
Note
The running and loaded-hours readings are lost on
changing the DELCOS 3100 electronics.
1.4.12
Fault memory
The fault memory contains number, fault/warning text
and total hour counter reading at the time when the
fault/warning occurs.
To retrieve this information, go – as described in
Chapter 1.3.3 – to the [FAULT MEMORY] menu.
In the case of non-acknowledged faults/warnings, the
number of faults/warnings currently active in each case
flashes.
Faults, i.e. shutdowns, are always identified by !. The !
is not shown for warnings.
Example:
E.g.: 12! MOTOR TEMP 12345 h.
Explanation:
•
12! Means: the same ! fault has occurred a total of
12 times
•
MOTOR TEMP: fault concerns motor temperature
•
12345 h: the fault occurred in the 12345th running
hour
Only the last 8 messages are displayed at any one
time. The newest entry appears at the top
Entries beyond the 8 messages shown in the fault
memory are no longer displayed. They are, however,
retained in the long-term memory – with indication of
number.
This means: when the fault/warning occurs again, the
fault/warning message appears with the current number
of fault/warning occurrences as well as with the hour
during which the fault/warning re-occurred.
In version RS, SR and FS with optional timer, it is also
possible to retrieve further information on compressor
status at the time of the fault ("extended" fault memory).
To use the function of the extended fault memory,
proceed as follows:
1. From the [FAULT MEMORY] menu, select the fault
under investigation.
2. By pressing the key several times, it is possible
to retrieve the following compressor statuses at the
time of the fault one after the other:
•
Date and time
•
Compressor status (e.g. on-load)
•
Speed (version SR only)
•
Final compression temperature, final
compression pressure and network
This information is displayed in line 1 of the plaintext
field, it flashes to make clear that these values do
not reflect the compressor's current status.