SJ700
2
Inverter
T
roub
leshooting
and Maintenance
6–11
Expansion Card
Error Codes
The inverter monitors the operation of the
expansion cards (optional) that may be
installed in the expansion bay.
On the inverter’s digital operator, error
codes in the E60 range refer to the upper
card position. Error codes in the E70 range
refer to the lower card position. For the
remote operator display, error codes are in
the OP1 or OP2 ranges, respectively. If an
error occurs, the inverter trips (displays the
corresponding error code and turns OFF the
motor output).
Encoder Input Card –
Use the following
table to diagnose errors caused by an
encoder input expansion card. Each error
will cause the inverter to trip, turning OFF its output and displaying an error code.
If an encoder expansion card does not operate normally, use the following table to check the
DIP switch settings on the card.
Encoder Input Expansion Card Errors
Error Code: OPE / SRW
Name
Probable Cause(s)
E60.- E70.-
Encoder disconnect
Encoder wiring to the expansion card is
disconnected
OP1-0 OP2-0
The encoder is faulty
The encoder type is not correct (no line
driver output, etc.)
E6 1.- E7 1.-
Excessive speed
The motor speed increased to the
maximum frequency (A004) times the
over-speed error detection level (P026)
OP1-1 OP2-1
E62.- E72.-
Positioning error
While in position control mode the
position error (command minus actual)
reached 1,000,000 pulses or more
OP1-2 OP2-2
E63.- E73.-
Position control
range trip
While in absolute position control mode,
the actual position exceeded the forward
(P072) or reverse (P073) position range
value
OP1-3 OP2-3
E69.- E79.-
SJ-FB connection
error
The SJ-FB expansion card is not mounted
properly or the card is faulty
OP1-9 OP2-9
DIP Switch
Switch
Number
Setting
SWENC
1
ON setting enables encoder disconnect function for loss of A
or B channel
2
ON setting enables encoder disconnect function for loss of Z
channel
SWR
1
ON setting connects the 150
Ω
termination resistor across
terminals [SAP] and [SAN]
2
ON setting connects the 150
Ω
termination resistor across
terminals [SBP] and [SBP]
E6x or OP1
Error range:
E7x or OP2