YASKAWA VS mini V7 User Manual page 48

Table 12 Causes and Countermeasures of Main Faults Displayed on VSmini V7 Digital Operator
Display Description
BUS Optional communi-
cations error
E5 SI-T WDT error
EF0 External fault from
option
F06 Optional
Connection fault
F21 Communications
optional self-diag-
nostic fault
F22 Communications
optional model
code fault
F23 Communications
optional mutual-
diagnostic fault
Table 11 Inverter Warning Codes
ALARM Digital Operator
Display
UV
01H
OV
02H
OH
03H
OL3
05H
EF
07H
BB
08H
FAN
0FH
OPR
13H
CE
14H
FBL
1CH
CALL
1DH
UL3
1EH
SEr
20H
OH3
22H
STP
40H
STP
41H
Cause
Communications are not established with
the host controller.
There is no continuity in the WDT for data
sent by the host controller.
An external fault is being input from the
host controller.
The Inverter and communications option
are not properly connected.
The communications option is faulty.
For information on the causes and countermeasures for other faults, refer to the VS-606 V7
Series Instruction Manual (Manual NO.: TOE-S606-11).
Description
Main circuit undervoltage
Overvoltage
Inverter overheat
Overtorque 1
External fault
External baseblock
Cooling fan fault
Digital Operator connection fault
MEMOBUS transmission fault
PID feedback reference loss
Waiting to receive data
Undertorque detection 1
Sequence input fault
Motor overheat 1
Emergency stop
Emergency stop
Check the LED indicators. Check the communications
cable wiring.
Execute DISCONNECT or ALM_CLR, and then use
either the CONNECT or SYNC_SET command to
move to phase 3.
Turn OFF the faulty input.
Turn OFF the power to the Inverter and check the con-
nection between the Option Unit and the Inverter. Then
turn the power back ON. If the fault persists, replace
the Option Unit.
Turn OFF and back ON the power to the Inverter. If the
fault persists, replace the Option Unit.
48
Countermeasures