Ala
rm L
ist
Ala
rm
Numb
er
(
1
00
0 to
19
99)
Alarm List-366
1681
BRAKE POWER
ERROR(SV)
Connection failure
(1)Turn the power OFF then back ON.
(2)If the alarm occurs again, check the connection and insertion of the
following cables and connectors.
∙
YBK21-CN403
∙
YPS21-CN153(+24V3)
Short circuit or ground
fault
(1)Turn the power OFF then back ON.
(2)If the alarm occurs again, check the connection and inserting state
of the following cables and connectors.
Check the insertion, connection, Short circuit or ground fault of the
followings.
∙
YFC22-CN219(81,82,92,93 : +24V2U3)
∙
YFC22-CN219(83,84,94,95 : 024V2)
∙
YIO-CN306,CN307,CN308,CN309
YBK board failure
Check the power source of YBK21, and then if no fault is found,
replace the brake unit.
other
If the alarm occurs again, save the CMOS.BIN in maintenance mode,
and then contact your Yaskawa representative about occurrence
status (operating procedure).
1682
EXTERNAL BRAKE
POWER ERROR(SV)
Connection failure
(1)Turn the power OFF then back ON.
(2)If the alarm occurs again, check the connection and insertion of the
following cables and connectors.
∙
YBK21-CN404
∙
The external axis brake power supply for brake unit
Short circuit or ground
fault
(1)Turn the power OFF then back ON.
(2)If the alarm occurs again, check the connection and inserting state
of the following cables and connectors.
Check the insertion, connection, Short circuit or ground fault of the
followings.
∙
YFC22-CN219(81,82,92,93 : +24V2U3)
∙
YFC22-CN219(83,84,94,95 : 024V2)
∙
YIO-CN306,CN307,CN308,CN309
YBK board failure
Check the external axis brake of YBK21 in the power source, and then
if no fault is found, replace the brake unit.
Alarm
Number
Alarm Name
Sub
Code
Meaning
Cause
Remedy
