Technical data

4.4 Fault Symptom Codes
The TSZ07 is capable of detecting operator errors and machine faults. When the drive detects
an operator error or machine fault, a Fault Symptom Code (FSC) and Fault Message (FM)
appear in the display (Table 4–1 lists the FSCs.) Error Recovery Procedures (ERP) should
then be performed to correct the error or fault. When several ERPs are identified, try the first
ERP, then check the drive for the same or a new FSC before trying the second, third, and so
on, of the recommended ERPs for the FSC. In some cases, the ERP requires the replacement
of a Field Replaceable Unit (FRU). When several FRUs are identified as possible causes of an
FSC, replace the first FRU, then check the drive for the same or a new FSC before replacing
the next FRU. Repeat this procedure for the remaining FRUs identified as possible causes.
The following pages contain tables that help decode the FSCs. Table 4–1 lists a code number
for the FM, ERP, and FRUs associated with each FSC, as well as a description of the FSC.
Table 4–2 decodes the FM column. Table 4–3 decodes the ERP column, and Table 4–4 decodes
the FRU column.
Table 4–1: Fault System Codes (FSC) with Related FM, ERPs and FRUs
FSC Error or Fault Description
FM
Table 4-2
ERP
Table 4-3
FRU
Table 4-4
01 Z8002 CPU, ROM, or RAM 22 3, 5, 6 1
02 CPC parity error detection 22 3, 5, 6 1
03 CPC register 22 3, 5, 6 1
04 SPC or CPC interrupt 22 3, 5, 6 1
05 80188 RAM data path to SPC or CPC
FIFO
22 3, 5, 6 1
06 Inter-processor interrupt lines 22 3, 5, 6 1
07 Communications buffer arbitration 22 3, 5, 6 1
08 HSB to SPC or CPC data transmission 22 3, 5, 6 1
09 SPC or CPC to HSB data transmission 22 3, 5, 6 1
0A DBC interrupt absent 22 3, 5, 6 1
0B Z8002 RAM 22 3, 5, 6 1
0C Z8002 CPU 22 3, 5, 6 1
0D CIO register 22 3, 5, 6 1
0E CIO timer accuracy 22 3, 5, 6 1
0F NVRAM 22 3, 5, 6 1
10 Z8002-side communication buffer 22 3, 5, 6 1
11 HSB RAM 22 3, 5, 6 1
12 HSB to Z8002 parity 22 3, 5, 6 1
13 DMA register 22 3, 5, 6 1
14 DMA scratch RAM 22 3, 5, 6 1
15 DMA auto-test 22 3, 5, 6 1
16 HSB to cache parity 22 3, 5, 6 1
17 HSB to cache data transfer 22 3, 5, 6 1
18 Cache to HSB data transfer 22 3, 5, 6 1
19 CDM FIFO loopback 22 3, 5, 6 1
1A Write ID failure 22 3, 5, 6 2, 3, 1
1B Write file mark 22 3, 5, 6 2, 3, 1
Troubleshooting 4–3