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1.2 Additional function of power amplifire
1. Setting of DIP switch
• When the DIP SW1 is turned off ( semi-automatic tension control mode ), th input signal level is set to
0 to 8V automatically. The function is not executable for other input mode. (The input level setting at
power amplifire mode remeins stored as it is. )
• The operation mode is determined as shown at following table, depending on ON / OFF of DIP SW2
and SW3. The setting changeis executable when the power source is turned from off to on.
2. Handling of input terminal
(1) PL terminal -------Winding reel pulse input
• For pulse / thickness setting method, connect the
proximity switch to the terminal.
Use the voltage output type proximity switch having
power source of 10 ~ 16VDC, current consumption
of 10mA or less and output current of 10mA or over.
( Example )
Type TL-G3D-3 --------- Made by OMRON
Type E2E-X2E1--------- Made by OMRON
Set the ON time / OFF time to 2msec or over respec-
tively.
The response frequency is 250Hz (max.).
(2) ST terminal -------- Operation stop input
• The ST terminal is an input terminal for stop gain.
Even when the stop gain is not used, turn it off as calculation stop input while the operation is stopped.
• This setting is necessary for speed / thickness setting method particularly when the pause time is long,
as error may occur in caluculation if only the aveage speed set.
The winding diameter calculation is paused after elapse of time set on the built-in stop timer.
• When the proximity switch is operated erroneously due to vibration while winding reel is stopped even for
pulse / thickness setting method, turn off the ST input while the operation is stopped, to inbalidate it.
(3) RS terminal-------- Reset input
• The winding diameter calculation data is stored in the RAM memory.
When any power failure occurs, however, the data is saved in the EEPROM memory automatically, to
hold the memory contents.
• If the input is turned on when the winding reel is replaced with a new one, the winding diameter is preset
to the initial diameter. ( When ST input is turned off.)
• When the RS input is turned on by turning on the ST input, the output corresponding to the SP input is
sent out.
4.0
2.0
ON
1
2
3
4
OFF
Output current
integer value
24VDC voltage mode when
all switchs are turned ON.
Operation mode
SW.2 SW.3
ON
Speed / thickness
ON
OFF
ON
OFF
OFF
Operation mode
SW.1
ON
Power amplifier
OFF Semi-automatic tension control (See chapter-2)
1.0
0.8
0.4
0.2
0.1
5
6
7
8
9
10
Output current
decimal value
Poeration mode
Unwinding
setting method
Winding
Unwinding
Pulse / thichness
setting method
Winding
Operation mode
Proximity switch
Same function as
power amplifier
26
Setting current (A)
SW No.
Set to OFF
LE-50PAU
12V
2.2kΩ
PL
Start
ST
Reset
RS
Remote
RC
Aux.Power
source
SC
12V
SN
DIP SW.1=OFF
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