4 - 9 4 - 9
MELSEC-Q
4 SETUP AND PROCEDURES BEFORE OPERATION
POINT
(1) Depending on the type of module used, the settings for D/A module output
range are shown below.
• Q62DA, Q64DA·······0
H
to 4
H
, F
H
• Q68DAV···················0
H
, 2
H
to 4
H
, F
H
1: When the setting is 0
H
, the output operating range
swill be 1 to 5 V.
• Q68DAI····················0
H
, 1
H
, F
H
(2) For Q62DA and Q64DA, leave the switch2 vacant.
(3) For Q68DAV and Q68DAI, the switch 3 will set in binary.
Setting will be easy if the input format is changed to binary number.
Example) For setting CH3, CH5 and CH8 to HOLD.
Input format
Binary
Hexadecimal
Setting value
10010100
94
H
(4) If the offset/gain setting mode is set using intelligent function module switch 4,
other settings by switch 4 (settings for resolution mode and synchronous output
mode) will be ignored.
(5) Setting of the offset/gain setting mode differs from function version A to function
version B.
Perform the offset/gain settings after checking the RUN LED flashes in
offset/gain setting mode. If the RUN LED does not flash, check to see if the
switch 4 setting is correct.
(6) Since the analog output value will differ considerably, depending on the
resolution mode setting, thoroughly check the settings for the intelligent function
module switches before performing the analog output processing.
Example) Analog output value when the setting range is -10 to 10V and the
digital input value is set to 4000.
High resolution mode Normal resolution mode
Analog output value
About 2.5 V
About 10.0 V
