Edwards nRVi, Инструкция по эксплуатации

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Table 31
Fault register flags
Bit number Status flag Active flags mean
0 (lsb) Reserved -
1 Over voltage trip Fault due to excessive link voltage
2 Over current trip Fault due to excessive motor current
3 Over temperature trip Fault due to excessive pump controller
temperature
4 Under temperature trip Pump controller temperature sensor failure
5 Power stage fault Power stage failure
6 Reserved -
7 Reserved -
8 H/W fault latch set Hardware fault latch active, see bits 0-7 for
detail
9 EEPROM fault Fault due to a critical EEPROM problem, for
example, parameter upload incomplete
10 Reserved -
11 No parameter set Parameter set upload required
12 Self test fault Self test fault, for example, invalid software
code
13 Serial control mode
interlock
Fault because the serial enable input went
inactive whilst operating with a serial start
command
14 Overload time out Fault because the output frequency fell below
the threshold for more than the allowable
time (with an active start command)
15 (msb) Acceleration time out Fault because the output frequency did not
reach the threshold in the allowable time
(following a start command)
8.3 Decoding service status word
The service status may be accessed directly via the serial link. This method of accessing
service status will give the most complete picture of current and future service
requirements and will allow preventative maintenance activities to be scheduled.
A summary of the current pending service status is given in response to the service
status command that follows:
Command ? V 8 2 6 cr
The reply is as follows:
Reply = V 8 2 6 sp h h h h cr
The service status word is made up of 4 hexadecimal digits. To decode this word, you
must convert each hexadecimal digit into a 4-digit binary number as described in
Decoding system status words on page 77 .
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A65901880_D - Fault finding