This manual confers no industrial property rights or any rights of any other
nor does it confer any patent licenses. Mitsubishi Electric Corporation cann
held responsible for any problems involving industrial property rights which
occur as a result of using the contents noted in this manual.
Warranty
Mitsubishi will not be held liable for damage caused by factors found not to
the cause of Mitsubishi; opportunity loss or lost profits caused by faults in t
Mitsubishi products; damage, secondary damage, accident compensation
caused by special factors unpredictable by Mitsubishi; damages to product
other than Mitsubishi products; and to other duties.
For safe use
This product has been manufactured as a general-purpose part for gene
industries, and has not been designed or manufactured to be incorporat
a device or system used in purposes related to human life.
Before using the product for special purposes such as nuclear power, el
power, aerospace, medicine or passenger movement vehicles, consult w
Mitsubishi Electric.
This product has been manufactured under strict quality control. Howeve
when installing the product where major accidents or losses could occur
product fails, install appropriate backup or failsafe functions in the system
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HEAD OFFICE
HIMEJI WORKS
: TOKYO BUILDING, 2-7-3 MARUNOUCHI, CHIYODA-KU, TOKYO 100
JAPAN
: 840, CHIYODA CHO, HIMEJI, JAPAN
Diagnostics
e following LEDs on the main panel of the FX2NC-1HC may help you to
ubleshoot the unit.
a) φA, φB:
Goes on/off as φA, φB input turn ON/OFF. It can be checked by rotating the
encoder slowly.
b) UP, DN:
Lights up to indicate whether the counter is going up (UP) or down (DN).
c) PR, DS:
The appropriate LED lights up when the PRESET (PR) terminal or the
DISABLE (DS) terminal is ON.
d) YH, YS:
The appropriate LED lights up when YH/YS output is turned on.
u can check the error status by reading the content of BFM #29 to the PLC.
→ For error contents, refer to the Subsection 5.2.11
RTUP AND MAINTE-
CE PRECAUTIONS
o not disassemble or modify the PLC.
oing so may cause fire, equipment failures, or malfunctions.
For repair, contact your local Mitsubishi Electric distributor.
o not drop the product or exert strong impact to it.
oing so may cause damage.
OSAL
CAUTIONS
ease contact a certified electronic waste disposal company for the
nvironmentally safe recycling and disposal of your device.
NSPORT AND STOR-
PRECAUTIONS
he product is a precision instrument. During transportation, avoid any impacts.
ailure to do so may cause failures in the product.
ter transportation, verify the operations of the product.
System Block Diagram
BFM #4 b1
0
16-bit counter
1-phase
1-input
counter
ØB
ØA
DISABLE
Error status
BFM #29
Comparisor data
BFM #13, #12
Comparision data
S
R
YH
DOWN/UP
Reset
BFM #4 b8
for YH output
Matched
for YS output
BFM #4 b11
BFM #4 b9
Count pulse
T0
T0
BFM #4 b3
Counter mode
BFM #0
Ring upper limit value
BFM #3, #2
DOWN/UP command
BFM #1