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3-4. Introducing FX-301(P) Updated Version Unit
Updated version units of the FX-301(P) (red LED type) have been manufactured since June 2004. There are
some differences in the functions and communication method between these units and previous version units.
Changes in appearance
Before change
Top view
Name
plate
Display
Uses special parts
Side view
* 'NAVI' is printed on the both sides * 'NAVI' is printed only on a side
Checking minor changes between previous and new models can be
done by checking whether the printing is on both sides or only one side.
Upgraded functions
1. Response times added
An ultra high-speed mode (H-SP) has been added to the existing
4 response time modes [high-speed (FAST), reduced intensity
(S-D), standard (STD) and long range (LONG)].
This is changed using '
Before change
4 steps
150 !s (FAST)
250 !s (S-D)
250 !s (STD)
2 ms (LONG)
2. Extension of timer period
The setting range for the timer period was previously 500 ms, but
this has been extended to a new range of 9999 ms.
3. Light emitting amount selection function
The light emitting amount can be changed to one of 4 levels
(5 levels when emission halt is included). However, the number of
levels that can be set will vary depending on the response time
settings. For further details, refer to p.34.
4. Backup, copy lock and key lock functions added
Backup
: This selects whether or not threshold values set by
teaching are written to (stored in) an EEPROM.
Copy lock
: This selects whether copy function and data bank
function communication are possible or not.
Key lock
: This disables input using switches to prevent
accidental changing of settings.
Changes in operation
1. Timer selection method
Previous version unit: Timer type was changed using PRO1 mode. The 'TIMER'
setting in NAVI mode could onlybe turned on or off.
After change
: The type of timer can be changed using the
'TIMER' function in NAVI mode.
2. Checking threshold value in RUN mode
After change: The threshold values can be checked by turning the jog switch.
Display changes
1. Checking blinking of sensitivity margin
The stable margin display method after teaching has been changed.
Previous version unit: Sensitivity surplus is indicated by the number
of blinks of the stability indicator.
After change
Digital display only
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After change
Top view
Added to
name plate
Change in shape
of jog switch
Side view
' in '
'.
After change
5 steps
65 ¨s (added)(H-SP)
150 !s (FAST)
250 !s (S-D)
250 !s (STD)
2 ms (LONG)
2. Initial direct code value changed
The factory default settings for the direct codes have been changed.
Previous version unit
m The default setting for the timer period is 10 ms, and the direct code for
10 ms is '4', so this has been changed.
Internal circuit changes
1. Addition of an APC circuit
A four-chemical emitting element which provides stable sensing
over long periods has been added, as well as an APC (Auto
Power Control) circuit that improves stability during short periods.
Cautions on sensor connection in cascade
•
When the units in the group A and the group B shown in the table
below are connected in cascade, connect them in cascade as
Figure A shown below.
<
>
<
Figure A
Figure B
Optical communications
Optical communications
are possible
are impossible
Group A
Group B
Group B
Group A
• When the units of the group A and the group B are connected in
cascade as Figure B shown above, optical communications cannot
be done. When the optical communications function is used,
connect them as Figure A shown above. If the units cannot be
placed as Figure A, the following measure 1 or 2 should be
taken.
1
Affix the communication window seal of the accessory amplifier
protection seal (FX-MB1) to the communication window of the
amplifier.
2
If the measure 1 described above cannot be taken, change the
optical communications spec. of the group B units.
How to change the optical communications spec. of Group B units
•
Follow the procedure given below to change the optical
communications spec. of the group B units. Be sure to set the
optical communications spec. to '3 (the optical communications
spec. of the group A)' or '0 (stop of the optical communications)'.
<
>
Procedure to change
1 Program the sensor to indicate 'PRO4'.
2 Press the 'jog switch' and the 'MODE key'
simultaneously.
The optical communications
The optical communications
spec. of the group B
spec. of the group A
Notes: 2)
Every time the jog switch and the MODE key are pressed simul-
taneously, the indicated No. will change from '5'n'0'n'0'n'3'n'5' in turn.
3 When stop pressing the 'jog switch' and the 'MODE key',
the spec. is set and 'PRO4' is indicated.
Notes: 3)
When the optical communications spec. is set to '3 (the optical communications
spec. of the group A)', be sure to mount the units close together. Furthermore,
take care of the following.
•
The optical communications function may not be usable due to the environment. etc.
•
Do not carry out the collective channel load or save.
5
0000
After change
0004
>
FX-301(P): Previous
version unit,
Group A
FX-301G(P) / B(P) / H(P),
FX-302(P), FX-303(P),
LS-400 series (Note 1)
FX-301(P): Updated version
Group B
unit, FX-305(P),
FX-301(P)-C1
Notes:1) When LS-400 series is connected
with the digital fiber amplifier in
cascade, be sure to locate LS-400
series at the left-most position (when
viewed from the connector side).
Stop optical
communications
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