Delta AS Series Manual page 630

AS Ser ies M od ul e Man ua l
Troubleshooting
Error Codes
Error
code
Counted result in the latched
16#1605 area is not retainable (major
error)
Module settings in the latched
16#1606 area is not retainable. (major
error)
Module setting error
16#1607
(major error)
Counter overflow / underflow
16#1800
on CH1
Counter overflow / underflow
16#1801
14
on CH2
Linear count exceeding the set
16#1802
upper/lower limit on CH1
Linear count exceeding the set
16#1803
upper/lower limit on CH2
The variation in relation to an
16#1804 SSI encoder position
exceeding the limit on CH1
The variation in relation to an
16#1805 SSI encoder position
exceeding the limit on CH2
Abnormal SSI communication
16#1806
on CH1
Abnormal SSI communication
16#1807
on CH2
SSI absolute position cross
16#1808
zero point on CH1
SSI absolute position cross
16#1809
zero point on CH2
1 4 - 3 2
ERR
Description
LED
ON
Blinking
Blinking
Blinking
Blinking
Blinking
Counter action
The counter The error alarm makes the CPU
module stops stop the system. (The module need
operating and be set to keep counting or stop for
counting when an error occurs in the module:)
Linear counter:
Counter value overflow inside the
Linear counter: hardware
Counting stops.
Ring counter:
After the Ring Counter
Ring counter: Overflow/Underflow Detect function
Counting is enabled in the Alarm Setting of
continues. HWCONFIG, the alarm will appear
when the overflow or underflow
occurs.
The counting value The counting inside the hardware
is fixed at the set persists. When the internal counter
max. counter value value is back within the valid range,
or the set min. the counter returns to normal and
counter value. the counting value is refreshed.
The counting value
The variation between two
is fixed at the most
consecutive SSI positions exceeds
recent correct count
the setting value.
value.
Encoder disconnection/ wiring
error/no power supply to the
The counting value
encoder/ data format error/parity
is fixed at the most
check setting error
recent correct count
(Error log will not appear unless five
value.
consecutive abnormal situations
occur.)
After the SSI Zero Crossing Detect
function is enabled on the Alarm
Setting tab page of the HWCONFIG
Counting continues.
software, the alarm will appear as
the absolute position of the SSI
encoder crosses the zero position.
Remark