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13. ALARM NUMBER
13.4 System error
The error code for system errors can be confirmed using system status codes (address 01D0). When the
status code is E
h, this corresponds to a system error.
Error code Content Cause of occurrence Procedure
E001 ROM error
Component failure inside position board. Replace the position board.
E002 RAM error 1
E003
Dual port memory
error
Component (dual port memory) failure
inside position board. (Note 1)
If the conditions described in (Note 1) are not
applicable, replace the position board.
E004 RAM error 2
Component error inside position board. Replace the position board.
E006
SSCNET
communication IC
error 1
E007
SSCNET
communication IC
error 2
E008 Board error
E1
CPU error
E200 Interrupt error
E301
Watchdog error
(Note 2)
E302 DC FAIL
The
+
5VDC being supplied to the position
board was reduced.
Check the + 5VDC of the bus connected to the
position board.
E400
An axis that has not
been mounted
exists
The control option 1 (parameter No.0200)
control axis (
) setting and the
servo amplifier connection status are
different.
Check the following details.
(1) That the control option 1 setting and the servo
amplifier connection status, setting (rotary switch)
match.
(2) Power supply status to servo amplifier.
(3) SSCNET
cable connection status.
(4) For disconnection of SSCNET
cable.
Communication was cut off by power
outage of servo amplifier etc.
Check the following details.
(1) Power supply status to servo amplifier.
(2) SSCNET cable connection status.
(3) For disconnection of SSCNET
cable.
Turn on the control power supplies for the
communication route servo amplifiers.
The disconnection command is sent to the
second or later axis in the module of the
multi-axis amplifier.
Make sure the all axes in the module of the multi-axis
amplifier are simultaneously disconnected.
E401 CRC error
SSCNET communication error
Check the following details.
(1) SSCNET
cable connection status.
(2) For disconnection of SSCNET
cable.
E403 Data ID error
E405
Driver type code
error
Type code (parameter No.021E) is
different from actual drivers.
Check the respective parameters.
The vendor ID (parameter No.021D) is
different from the actual driver.
Check the respective parameters.
E407 SSCNET time out
No response from the servo amplifier and
a communication time out occurred.
An error occurred in communication processing
between the position board and the servo amplifier.
Make contact with and explain the failure symptoms to
an agency or branch office.
Note. 1. There are cases where this occurs when data is written to the dual port memory from the host controller prior to system status
code becoming "system preparation completion" after turning on the power for the position board (or after reboot).
2. Not user watchdog. Watchdog error on the position board side.