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3-2. Details of Error Messages
ERROR-92
INTERNAL INTERFACE ERROR 1
(INTERNAL I/F 1)
Description:
Abnormality was detected in the communication between SYS1 CPU (IC704 on
SS-63 board) and other CPU/MPU.
Sub error messages and Detecting conditions:
SY2: When the SYS2 CPU (IC1505 on SS-63 board) initialization at power-on
KY:
FP:
Possible causes:
SY2: . DIP switch (S1900 on SS-63 board) setting defect
KY:
FP:
Protecting operations:
When the sub error message is "SY2", enters the protection mode.
When it is except above, displays only this error.
3-16
is in abnormal state.
When the communication with KY-364 board's MPU (IC104) is in
abnormal state.
When the communication with FP-91 board's MPU (IC6) is in abnormal
state.
. Common RAM (IC2501 on SS-63 board) or Common RAM control-
ler (IC2500 on SS-63 board) trouble
. System control system SY-2 area (IC1500 series on SS-63 board)
trouble
. Cable (between MB-648 board and KY-364 board) connection defect
or disconnection
. Interface circuit (IC1102 through 1105 on SS-63 board) trouble
. Line receiver/transceiver (IC102 on KY-364 board) trouble
. KY-364 board's MPU (IC104) trouble
. Cable (between MB-648 board and FP-91 board) connection defect or
disconnection
. MPU control interface circuit (IC1400 through 1402 on SS-63 board)
trouble
. FP-91 board's MPU (IC6) trouble
DNW-A22/A22P
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