Hitachi LQZ700, User Manual

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2 NAMES AND FUNCTIONS OF EACH PART
2-2
2.1 Names and Functions of Each Part
No. Name Function
① ACTIVE LED
indicator (green) Lights up when the self-system LPU is
operated as the running system.
② ERR LED
indicator (red) Lights up as a running system error when the
PCs OK signal of the self-system LPU changes
from “ON” into “OFF” or the PI/O output
“PI/O OK” changes from “ON” into “OFF.”
This indicator is caused to go out by operating
the “ERR RESET” switch.
③
PRIORITY
setting switch Used to set the priority to determine the LPU
units of the running system (1st) and the
standby system (2nd) when the power supplies
of the units are simultaneously turned on.
Perform a different setting for each unit. Do
not perform the same setting for both units.
④
ERR RESET
setting switch Used to clear the error status of the self-system
LPU.
After removing the cause of error, clear the
error status by using this switch.
⑤ TB (terminal
block) Used to wire the following signals. This
adopts a connector type that permits
connection/disconnection.
•
PCs OK input terminal (A1, A2)
Connects the PCs OK output of the self-
system LPU.
• BUSY IN input terminal (B1, B2)
Connects the BUSY OUT output of the other
system SYS SW.
• STOP/RUN output terminal (A4, A5)
Connects the ladder STOP/RUN and PI/O
STOP inputs of the self-system LPU.
• BUSY OUT output terminal (B4, B5)
Connects BUSY IN of the other system SYS
SW.
• PI/O OK output terminal (B7, B8)
Connects the PI/O normal output signal of
the self-system.
• SHD terminal (A3, A6, B3, B6, B9)
Connects the shielding wire when the twisted
pair cable with shielding is used.
• FG terminal (A9)
Connects the shielding (SHD) collectively to
the FG terminal of the mount base.
①
②
③
④
⑤
LQZ700-Z SYS SW
A1
A2
A3
A4
A5
A6
A7
A8
A9
B1
B2
B3
B4
B5
B6
B7
B8
B9
ERR RESET
ERR
COM
BUSY
IN
SHD
COM
STOP
/RUN
SHD
COM
COM
PI/O
OK
SHD
COM
PCs
OK
SHD
BUSY
OUT
SHD
PRIORITY
2nd 1st
ACTIVE
100V AC/DC
FG