<6. Operation>
49
IM 01E25A01-01EN
6.3 Hardware Switch Setting
6.3.1 Integral Type and AXW4A Remote
Transmitter
NOTE
The integral type is explained as an example. Pay same
attention to the AXW4A remote transmitter.
IMPORTANT
• Removing and installing the cover are necessary for
hardware switches. Perform removing and installing
the cover as described in Section 3.6. When opening
the cover, wait for more than 20 minutes after turning
off the power. This work must be carried out by the
trained personnel having knowledge of safety standard.
• To preserve the safety, do not touch the electrical circuit
and the cables except the setting switches.
• When installing the cover, in order to contact the
housing and the cover, be sure to screw it firmly into the
housing without any space between them.
(1) Remove the cover.
(2) While holding the display by hand, loosen the two
mounting screws.
(3) While holding the display by hand (careful for
connecting cable), set the switches. Never remove
connector in this case.
Safety cover
F0610.ai
Burnout switch
(SW1-1)
Write protect
switch (SW1-2)
H
L
1 2
ON
OFF
ON
OFF
SW1
1 2
1 2
1 0
3 2
5 4
7 6
0
1
SW3 SW2
ADDRESS
Address switch
(ADDRESS)
Pull up and Pull down
switch (SW3)
Line termination
switch (SW2)
Figure 6.3.1 Hardware switches
(4) Taking care not to entangle the cables, tighten the two
screws on the display.
(5) Install the cover.
NOTE
On the front of the amplifier, the burnout switch (i.e.,
SW1-1) and the write protect switch (i.e., SW1-2) are
located adjacent to each other. Accordingly, special care
should be taken when making switch settings.
● 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., >21.6 mA); however, in cases
where the optional codes C1 or C2 have been specified,
the output direction will be set to Low (i.e., <2.4 mA).
Modification of the burnout direction must be carried out
using the burnout switch (i.e., SW1-1) (See Figure 6.3.1).
Table 6.3.1
Burnout switch (SW1-1)
Position of
Switch
Burnout
Direction
Burnout
Output
Description
1
2
ON
OFF
H
L
High
> 21.6 mA
When optional code
C1 or C2 is not
specified, the setting
is “High”.
1
2
ON
OFF
H
L
Low
< 2.4 mA
When optional
code C1 or C2 is
specified, the setting
is “Low”.
● Setting of Write Protect Switch
The write protect function is to prevent the overwriting of
parameters.
Write protection can be carried out using either the write
protect switch (SW1-2) (See Figure 6.3.1) or software
function with parameter setting. If either of these items is
activated, the overwriting of parameters will be prohibited.
Table 6.3.2
Write protect switch (SW1-2)
Position of
Switch
Write Protect Function
1
2
ON
OFF
H
L
OFF (Factory setting)
Parameter can be overwritten.
1
2
ON
OFF
H
L
ON
Parameter can not be overwritten.
NOTE
• If the hardware switch is set to “ON”, the condition of
preventing parameter overwriting kept until the switch
is set to “OFF”.
• For the software write protect, read the user’s manual
of applicable communication type as listed in Table
1.1.
Operation
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