Logosol Absolute Positioning Servo Drive LS-173AP
Doc # 712173008 / Rev. 1.06, 05/09/2002
Logosol, Inc.
••
1155 Tasman Drive
••
Sunnyvale, CA 94089 Tel: (408) 744-0974
••
www.logosolinc.com 20
Status Bits and LED
Bit 3 (Power_on), bit 5 and bit 6 of
Status Byte
*
and bit 0 (Index) of
Auxiliary Status byte
*
are
used for reading input signals and driver diagnostics as shown on tables below.
Power Driver OFF condition (Stop command bit 0 (Pic_ae)=0)
Status byte diagnostic bits
Bit 6
Bit 5
Bit 3
Condition
LED intensity
1
1
0
A
OVERVOLTAGE
Low
1
0
1
B
STP IN ACTIVATED
Low
0
1
1
C
OVERHEAT
Low
1
0
0
D
A+B
Low
0
1
0
E
A+C
Low
0
0
1
F
B+C
Low
0
0
0
G
A+B+C
Low
1
1
1
H
OK CONDITION
Low
Servo Drive diagnostic codes (Stop command bit 0 (Pic_ae)=0
Status byte (hex)
Pos_error =1
Pos_error =0
Fault code description
Index
71
61
A OVERVOLTAGE
1
59
49
B STP IN ACTIVATED
1
39
29
C OVERHEAT
1
51
41
D A+B
1
31
21
E A+C
1
19
09
F B+C
1
11
01
G A+B+C
1
79
69
H OK CONDITION
1
Power Driver ON condition (Pic_ae=1)
Status byte
Bit 6
Bit 5
Bit 3
(Power_on)
LED intensity
0
0
1
High
Power Driver Fault condition (Pic_ae=1)
Diagnostic bits
Status byte
Bit 6
Bit 5
Bit 3
(Power_on)
Condition
LED intensity
1
0
0
A STP IN (LATCHED)
OR ENCODER ERROR
Low
0
1
0
B MTOR SHORT
**
OR
OVERVOLTAGE
Low
0
0
0
C OVERCURRENT
Low
1
1
0
D OVERHEAT
Low
Diagnostic codes
Status byte
Fault code description
Index
51h
A
STP IN
1
ENCODER ERROR
0
31h
B
MOTOR SHORT** OR OVERVOLTAGE
1
11h
C
OVERCURRENT
1
71h
D
OVERHEAT
1
*
Refer to Status Byte and Auxiliary Status Byte description in Command Description section of this document.
**
MOTOR SHORT – output to output, output to POWER(+) or output to POWER GND
