Hitachi SJ Series User Manual page 484

Chapter 13
13.16 Checking the State of Analog
Switch
Q
• Want to check the state of analog voltage/current
changeover switches.
• Want to check whether analog input/output
terminals are voltage input/output terminals or
current input/out terminals.
A
• You can check the state of analog input/output
changeover switches.
Parameter
Item Parameter
Analog I/O
selection monitor
Data
VVVVVVVV~
[dA-60]
AAAAAAAA
!
• Note that the data cannot be obtained appropriately
if the analog input switch selection differs from the
actual input, which results in a damage.
• The data cannot be output appropriately if an
analog output switch selection differs from the
actual output.
• If the data on analog switch monitor does not switch
after the switch is switched, check the switch
because the switch may not be fully switched or
may be damaged.
(Example) For terminals on the inverter, current is
enabled only at [Ai2], and voltage is
enabled at the other terminals.
For options, current terminal is enabled
only at [Ii4] of [Ai4], and other voltage
terminals are enabled.
Monitor V
(Ao4) (Ao3) (Ai4) (Ai3) (Ao2) (Ao1) (Ai2) (Ai1)
Terminal
No.
*) For options, current terminals and voltage terminals are
separated. Each terminal is numbered in the order
corresponding to "terminal (current terminal/voltage
terminal)" as follows: Ao4 (Io4/Vo4), terminal Ao3
(Io3/Vo3), terminal Ai4 (Ii4/Vi4), and terminal Ai3
(Ii3/Vi3).
Description
Displays whether an analog input/output terminal is a
voltage input/output terminal or a current input/out
terminal.
[Left side] (terminal Ao4 (Io4/Vo4)) (terminal Ao3 (Io3/Vo3))
(terminal Ai4 (Ii4/Vi4)) (terminal Ai3 (Ii3/Vi3)) (terminal Ao2)
(terminal Ao1) (terminal Ai2) (terminal Ai1) [Right side]
V: voltage/A: current
13-21
Monitor Functions
V A V V V A V