7 POSITIONING MODULE REPLACEMENT
7 - 48
*3 The I/O signals shown in the table are the ones when the QD73A1 is mounted on the slots "0, 1" of a main base unit.
Note that XY addresses of the QD73A1 are different from the ones of the AD70 because the number of occupied slots
differs between the modules as shown below.
LED name AD70 QD73A1
Remarks
*3
RUN -- RUN
Minor error ERR.1
ERR.
Used for both minor errors and major errors.
Major error ERR.2
Encoder phase A A A
Encoder phase B B B
Encoder phase Z Z Z
BUSY BUSY BUSY
Zero adjustment status -- ZERO
The contents indicated with "ZERO" of the QD73A1 differ from the ones
indicated with "ZERO" of the AD70.
Gain adjustment status -- GAIN
Servo READY SV RDY -- Can be checked with an input signal "X1B".
Near-zero point dog DOG -- Can be checked with an input signal "X1C".
Stop STOP -- Can be checked with an input signal "X1D".
Upper limit LS FLS -- Can be checked with an input signal "X1E".
Lower limit LS RLS -- Can be checked with an input signal "X1F".
In-Position IN-POS -- Can be checked with an input signal "X16".
Error counter polarity POLE -- Can be checked with buffer memory addresses "106, 107".
The LED "POLE" of the AD70 indicates ON when the deviation counter
value is "-", and indicates OFF when the deviation counter value is "+".
Error counter value
2
n
--
PC READY PC RDY -- Check the on/off status of an output signal "Y2D" with a device monitor.
Zero-return request ZERO --
Can be checked with an input signal "X12".
The contents indicated with "ZERO" of the AD70 differ from the ones
indicated with "ZERO" of the QD73A1.
Excessive error EEX -- Can be checked with an input signal "X17".
WDT error WDT ERR -- Can be checked with an input signal "X10".
During velocity operation V-MODE -- Can be checked with an input signal "X2D".
QD73A1
AD70 QD73A1
AD70
Power supply
module
CPU module
Power supply
module
CPU module
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