3
PRE-OPERATION INSTRUCTIONS
1
1.2
Node address setting
Set the node address between "00H to 7DH" using node address switches on FR-A7NP
(refer to page 2)
.
The setting is applied at the next power-ON.
Set the arrow (
×
) of the corresponding switches to a number or an alphabet to set a desired address.
•
Setting example
Node address 1:
Set the "
×
" of X16(SW3) to "0" and the "
×
"
of X1(SW1) to "1".
Node address 38 (26H):
Set the "
×
" of X16(SW3) to "2" and the "
×
"
of X1(SW1) to "6".
CAUTION
• Set the node address switch to the switch number (alphabet) position correctly. If the
switch is set between numbers, normal data communication cannot be established.
• Do not set the node addresses to 7EH through FFH. When these addresses are set,
they are recognized as 7DH.
• The node addresses, 00H, 01H, 02H, 7CH, and 7DH, may not be available for some
master modules.
• You cannot set the same node address to other devices on the network. (Doing so disables proper
communication.)
• Set the inverter node address before switching ON the inverter and do not change the setting while power is
ON. Otherwise you may get an electric shock.
X16
X1
012
34
5
67
89A
B
C
D
EF
012
34
5
67
89A
B
C
D
EF
X16
X1
012
34
5
67
89A
B
C
D
EF
012
34
5
67
89A
B
C
D
EF
Good
example
Bad
example
012
34
5
678
9A
B
C
D
EF
012
34
5
678
9A
B
C
D
EF
