WATANABE WSP-SHS User manual

6-16-19, JINGUMAE, SIBUYA-KU, TOKYO 150-0001, JAPAN
Phone: [phone] FAX: [phone]
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Instruction
Manual
WSP-SHS
WSP-SLS
SIGNAL SELECTOR
Thank you for selecting another fine product.
Please check the description given on the rating label of this unit to
make sure that it meets your specifications and be sure to read this
instruction manual before using the product.
This manual outlines the operation, connection and adjustment
procedures of this product.
The unit has been manufactured and inspected according to our strict
quality control standard. If you should find a defect including damage
incurred during transportation, contact us or the dealer where you
purchased it immediately.
○PACKAGE INCLUDES:
・Isolation converter.……………………1
・Base socket……………………………1
* For details of models and specifications, please download the
product catalog from our website, and then check it.
1．Overview
This unit is a plug-in type signal converter that receives two
analog signals and automatically selects the higher or lower of
them and outputs it.
2．Functions and Features
・Output zero span can be adjusted by front DIPSW
・Highly reliable design that is not affected by signal source
resistance and receiving resistance
・Realization of 5-year warranty by long-life design
・Compatible with worldwide power supply
・Compliant with CE marking
3．Precautions
1) Power supply:
・Check the rated voltage on the rating label, and use the product
within the range of each of the following ratings.
①100 to 240VAC
100 to 240VAC ±10% (50/60 Hz) approx. 5.5 VA
②24VDC
24VDC ±10%, Approx. 100 mA
③100~120VDC
100~120VDC ±10%, Approx. 25mA
2) Insulation resistance:
Mutual between input - output - power supply
terminal
100MΩ or more/DC500V
Non-isolated between 2 input terminals
3) Withstand voltage:
Mutual between input - output - power supply
terminal
AC2000V 1 minute
4) Handling
· When removing or installing the main unit from the
socket, be sure to shut off the power supply and input
signal for safety.
・When touching the screws on the main unit or operating
the output adjustment switch, touch a metal object to
remove static electricity before doing so.
5) Installation
・Please use indoors.
・When installing in a place with a lot of dust, metal
powder, etc., store it in a dust-proof housing and
take heat dissipation measures.
・Avoid vibrations and impacts as much as possible,
as they may cause failure.
・Install in a place where the ambient temperature
does not exceed the range of -5 to 55°C.
・Install in a place where the ambient humidity is 90% RH
or less (non-freezing, non-condensing).
・Do not block the ventilation openings of the
main unit.
5) Wiring
・Do not wire the power supply line, input line, or
output line near noise sources, relay drive lines, or
high-frequency lines.
・Avoid bundling together lines on which noise is
superimposed or storing them in the same duct.
6) Others
・The unit can be operated immediately after turning
on the power, but 30 minutes of energization is
required to satisfy all performance requirements.
4．Outline Dimensions
5．Circuit Diagram
6. Mounting
Close mounting is possible, but please leave a space of
6.5mm to 7mm or more for heat dissipation.
As shown in the figure above, a 6.5mm interval can be created
with a 29.5mm pitch.
Analog input
circuit
Digital
calculation
circuit
Analog input
circuit
Power
circuit
Output circuit
Base socket
Unit : mm
2-M3 or M4
Or φ4.5 hole

6-16-19, JINGUMAE, SIBUYA-KU, TOKYO 150-0001, JAPAN
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7．How to attach and detach from the DIN rail
1) Socket fixing method
Place the slider on the bottom of the
socket downward, hook the claw on
the upper side of the back of the
socket to the rail, and then push the
bottom of the socket in the direction
of the arrow in the figure to fix it.
2) How to fix the main body and
socket
Orient the main unit so that the
characters on the front label can be
read correctly, insert it straight, and
tighten the screw to fix it.
3) How to remove the main body
from the socket
Loosen the screws on the main unit
and pull the main unit straight out.
4) How to remove the socket
Insert a flat-blade screwdriver into
the groove of the socket slider, and
while pulling in the direction of the
arrow (1) in the figure, pull the
lower part of the socket forward (2)
to remove it.
8. Terminal Connections
※Do not connect to NC terminal
9. Output Adjustment method
The unit has been calibrated at the time of shipment, so no output
adjustment is necessary as long as it is used according to the
specifications at the time of ordering. If you want to match with the
connected equipment, or if periodic calibration is required, adjust as
follows.
However, in the case of calibration, use a signal source (standard
voltage/current generator, etc.) and a measuring instrument (voltmeter,
ammeter) with an accuracy of 10 times or more than the tolerance of
the instrument, and wait at least 30 minutes after turning on the power.
Please go after it has passed.
Output adjustment is performed by operating the setting switch on
the front of the unit.
※Do not move switch No. 3,
which is set at the time of shipment
○ Adjustment procedure
①Turn on switch 1 (SW SET).
Switch operation is enabled.
②Turn off switch 2 (M OUT).
③Set switch 4 (ZS SEL) to ZERO.
Input an input signal equivalent to 0%, and press the UP and DOWN
switches to adjust so that the output value at that time becomes 0%.
④Set switch 4 (ZS SEL) to SPAN.
Input an input signal equivalent to 100%, and press the UP and DOWN
switches to adjust so that the output value at that time is 100%.
⑤Input the input signal equivalent to 0% again and confirm that the
output is 0%.
If the output is deviated, repeat the adjustment of ③and ④.
⑥When the adjustment is completed, turn the changeover switch 1 to OFF.
The adjustment value set at that time is written to the internal memory, and
the switch operation becomes invalid.
* The adjusted value is written to the internal memory and will not be lost when
the power is turned off.
The maximum number of writes to the internal memory is 1000 times.
*If the power is turned off during adjustment, the adjusted value will not be
written to the internal memory.
*The adjustment range of zero and span is approximately ±10% fs.
10. Input/output signal relation
○In case Low selector（WSP-SLS）
①＝No.1 Input signal
②＝No.2 Input signal
③＝Output signal
○In case High selector （WSP-SHS）
①＝No.1 Input signal
②＝No.2 Input signal
③＝Output signal
UP switch
DOWN switch
Switch
(1) Switch enable/disable
(2) Simulated output/output adjustment
(3) unused
(4) Zero/span adjustment
Input signal
Input signal
Output signal
Output signal

6-16-19, JINGUMAE, SIBUYA-KU, TOKYO 150-0001, JAPAN
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11. Simulation Output Function
The instrument has a simulated output function for connection tests,
etc.
Simulated output is performed by operating the setting switch on
the front of the instrument. (For the switch position, refer to the
diagram in section 9.)
○Simulated output procedure
(1) Turn on switch 1 (SW SET).
Switch operation is enabled.
(2) Turn switch 2 (M OUT) ON.
(3) The simulated output value can be output in 3 stages by
pressing the UP and DOWN switches.
(DOWN) 0% ⇔50% ⇔100% (UP)
(4) When you have finished checking, turn switch 1 OFF.
12. Out-of-range conditions
1) Excessive input
When a signal exceeding the upper limit of the input range is input,
the output signal increases approximately
proportionally to the input up to about 120% fs of the scaling ring
setting. It is not.
2) Under-input
The output operation when a signal below the lower limit of the
input range is input is as follows.
(a) For current output, the output signal decreases in proportion to
the input up to about -20% fs of the scaling setting, but the
negative polarity signal is not output.
(a) For voltage output, the output signal decreases in proportion
to the input up to about -120% fs of the scaling setting, but it
will not decrease even if the input signal is too low.
3) Out-of-range load
(a) In the case of current output, if the "permissible load resistance
range" is exceeded, the output will be approximately
proportional to the input until the voltage between the output
terminals reaches approximately 15 V, but it will be higher. ,
the output saturates and the error increases.
(b) In the case of voltage output, if it falls below the "allowable
load resistance range", the output will saturate and the error
will increase.
13．Warranty
The warranty period for this equipment is five (5) years after
delivery. If it should fail under the normal operation conditions
within the warranty period, contact us or the dealer where you
purchased the equipment as soon as possible.
We will repair the defective equipment free of charge or replace it
with a new one if necessary. This warranty does not apply to
equipment damaged due to disassembly, modifications or operation
under conditions other than those specified.
We will not take any responsibility for any damage incurred due to
this product.