25
Data Para- Read or Value (range)
meter write
Reading of event register L R time, channel number
and event code
Re-reading of event register B R time, channel number
and event code
Module type designation F R SPCU 1D50
Reading of status data C R 0 = normal state
1 = module been subject
to automatic reset
2 = overflow of event
register
3 = events 1 and 2
together
Resetting of status data C W 0 = resetting
Time reading or setting T R,W 00.000…59.999 s
The event register can be read with the L com-
mand only once. Should a fault occur e.g. in
the data transfer, the B command can be used
to re-read the contents of the event register.
When required, the B command can be re-
peated. In general, the substation-level control
data communicator reads the event data and
forwards the information to an output device.
The control data communicator also resets ab-
normal state message, so this data is normally
zero.
The parameters S1...S17 are the setting values
used by the regulator program. The parameters
S21...S37 contain the main settings and the
parameters S41...S57 the second settings. The
settings allow both reading and writing. A con-
dition for writing is that the password V160 for
remote setting has been opened.
When setting values are changed the module
checks that the parameter values are within the
limits specified for the module. An attempt to
write an incorrect value, manually or via the
serial bus, will be rejected by the module, which
retains the previous setting.
Fault codes
When the self-supervision system has detected
a permanent internal fault the red IRF indica-
tor is lit. Simultaneously the relay module de-
livers a control signal to the output relay of the
self-supervision system. In most fault situations
an autodiagnostic fault code appears on the dis-
play of the module. The fault code consists of a
red number 1, and a green, one to three digit
code number. The fault code should be recorded
and stated when service is ordered.
The table below lists some of the fault codes of
the voltage regulating module SPCU 1D50:
Fault code Fault type
4 Faulty or missing regulator control circuit
30 Faulty program memory (ROM)
50 Faulty work memory (RAM)
51 Faulty parameter memory (EEPROM), block 1
52 Faulty parameter memory (EEPROM), block 2
53 Faulty parameter memory (EEPROM), checksum of blocks 1 and 2 differ
56 Faulty parameter memory key (EEPROM). Formatting by writing V167:2
253 No interruption from A/D converter
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