Yokogawa ADMAG AXF - Manual (Page 98)

IM 01E20C01-01E 10-2
10. MAINTENANCE
F1004.EPS
Enable Protect
Switch 1 2 Burnout setting switch
Switch 2 1 Write protect setting switch
Low High
Figure 10.2.2 Switch Configuration
10.2.2 Setting of Burnout Switch
The burnout function sets the direction of current
output in situations where the CPU has become
damaged. Upon shipment from the manufacturing
plant, the burnout direction is set to High (i.e., 25 mA);
however, in cases where the optional code C1 has been
specified, the output direction will be set to Low (i.e.,
0 mA).
Modification of the burnout direction must be carried
out using the setting switch from the amplifier’s CPU
board (i.e. Switch 1) (See Figure 10.2.2).
Table 10.1 Output Setting Pins for Burnout
T1001.EPS
Position
of Pin
Burnout
Direction
Output Remarks
Low High
Low High
Low
High
0 mA
25 mA
Set to Low for
optional code C1
Set to High before
shipment
NOTE
On the amplifier’s CPU board, the burnout
setting switch (i.e., Switch 1) and the write
protect switch (i.e., Switch 2) are located adja-
cent to each other. Accordingly, special care
should be taken when making switch settings.
10.2.3 Setting of Write Protect Switch
By setting the write protect function to “Protect” it is
possible to prevent the overwriting of parameters.
Write protection can be carried out using either the
hardware switch on the CPU board (i.e., Switch 2) or
software parameter settings. If either of these items is
set to “Protect”, the overwriting of parameters will be
prohibited.
NOTE
If the hardware switch is set to “Protect”, it will
not be possible to overwrite parameters; further-
more, this condition will be maintained until the
switch is set to “Enable”.
For more details regarding usage of the write protect
function and the software’s parameter switches, refer to
Chapter 6: Parameter Description.