Hexadecimal Binary Decimal
1 0001 1
2 0010 2
3 0011 3
4 0100 4
5 0101 5
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 tha
t is either acve (state 1) or not acve
(state 0). To help decode the system status word, each bit is numbered (starng with 0
for the least signicant to 31 for the most signicant) as shown below.
Refer to Table: Status ag on page 84 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 27
Status ag
Bit number
Status ag Acve ags means
0 Fail Fail status condion acve
1 Stopped speed Below stopped speed
2 Normal speed Above normal speed
3 Vent valve closed Vent valve energised
4 Start Start command acve
5 Serial enable Serial enable acve
6 Standby Standby acve
7 Half full speed Above 50% full rotaonal speed
8 Parallel control mode Exclusive control mode selecon
9 Serial control mode Exclusive control mode selecon
Page 84
B85200880_D - Fault nding