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