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Hexadecimal Binary Decimal
6 0110 6
7 0111 7
8 1000 8
9 1001 9
A 1010 10
B 1011 11
C 1100 12
D 1101 13
E 1110 14
F 1111 15
Each binary digit (bit) represents a ag that is acve (state 1) or not acve (state 0). To
help decode the System Status Word, each bit is numbered (starng with 0 for the least
signicant to 31 for the most signicant) as shown below.
Refer to Table: Status ags on page 92 for the list of the lower 16 status ags that are
useful for fault nding. The upper 16 status ags are reserved by us.
Binary digits
0 0 1 0 0 0 1 0 1 0 0 0 0 0 1 1 0 0 0 0 0 0 0 0 0 0 1 0 0 0 1 0
ê ê ê ê ê ê ê ê ê ê ê ê ê ê ê ê ê ê ê ê ê ê ê ê ê ê ê ê ê ê ê ê
3
1
3
0
2
9
2
8
2
7
2
6
2
5
2
4
2
3
2
2
2
1
2
0
1
9
1
8
1
7
1
6
1
5
1
4
1
3
1
2
1
1
1
0
9 8 7 6 5 4 3 2 1 0
Bit numbers
Table 33
Status ags
Bit number
Status ag Acve ags means
0 Fail Fail status condion acve
1 Stopped speed Below stopped speed
2 Normal speed Above normal speed
3 Vent valve closed Vent valve energised
4 Start Start command acve
5 Serial enable Serial enable acve
6 Standby Standby acve
7 Half full speed Above 50% full rotaonal speed
8 Parallel control mode Exclusive control mode selecon
9 Serial control mode Exclusive control mode selecon
10 Invalid Controller soware Controller internal soware mismatch
11 Controller upload incomplete
Controller failed internal conguraon
and calibraon operaon
12 Timer expired
Failure to reach or maintain half full speed
in the mer seng value
13 Hardware trip Overspeed or overcurrent trip acvated
Page 92
B8G000880_D - Fault nding