![Sony GY-2120WD Maintenance Manual Download Page 396](http://html.mh-extra.com/html/sony/gy-2120wd/gy-2120wd_maintenance-manual_410991396.webp)
6-172
GY-2120WD/WS
2x 93
(ERROR 93)
Inter CPU communication error (SV)
Description:
Abnormality was detected in the communication between microcomputer SYS CPU (MA-
83 board) in a system control system and SV CPU (MA-83 board) in a servo system or
between SV CPU and microcomputer EQ CPU (EQ-66 board) in a servo system.
Detection conditions:
1) When the communication check between SYS CPU and SV CPU fails during normal
operation
2) When the SV CPU initialization is not completed during activation
3) When the communication check between SV CPU and EQ CPU fails during normal
operation
Subcode:
02: When the system error occurs due to No.1 in detection conditions
04: When the system error occurs due to No.2 in detection conditions
08: When the system error occurs due to No.3 in detection conditions
Possible cause:
.
SV CPU trouble
.
EQ CPU trouble
.
Signal line disconnection between SV or EQ and SYS CPU
.
Trouble of 2-port RAM (MA-83 board) with SYS and SV used in common
Protection operation:
Enters the protection mode.
2x 97
(ERROR 97)
SV NV-RAM defective
Description:
Abnormality was detected in the NV-RAM (MS-54 board) in a servo system.
Detection conditions:
When the checksum of NV-RAM data does not coincide during activation
Subcode:
None (Displays 00.)
Possible cause:
.
NV-RAMs trouble
.
Signal line disconnection between MS-54 board and NV-RAM
Protection operation:
Enters the protection mode only when the checksum does not coincide, respectively. (When
the other coincides even if one of them does not coincide, the system functions normally.
In this case, the protection operation is not performed.)
6-3. Error Processing
Summary of Contents for GY-2120WD
Page 10: ......
Page 224: ......
Page 437: ...7 3 GY 2120WD WS Index Mechanical Deck Overall Block 6 7 9 8 2 1 3 4 5 ...
Page 469: ...8 1 GY 2120WD WS 8 1 Section 8 Block Diagrams Frame Wiring ...
Page 476: ......
Page 482: ......