Minebea CSA-522B User manual

TRANSMITTER
CSA-522B
Instruction Manual
EN294-1348-D

II

I
Forward
Thank you very much for purchasing Minebea’s Transmitter, model CSA-522B. This
manual explains installation procedures and connecting method and also operating
method for the transmitter. Make use of it properly after reading through the manual
carefully. This manual is intended for the technical experts to read.
Marks and arrangements used in this manual
The following marks are put to the explanation on the matters that indicate “Don’t do
this.”, “Take care”and “For reference”.
Be sure to read these items where these marks are attached.
Warning
Caution
Warning may cause injury or accident that may harm to the operator。
Don’t do these things described here.
It is a description when the occourence only of the assumption of danger by which the user owes injury when handling is mistaken, and the
material damage is assumed。
It is attention and a limitation in the operation and work
Be sure to read the items to prevent the malfunction.

II
For safe operation
Be sure to read this instruction manual before use.
1. Installation place
Caution
●Environmental temperature : －10 ℃to 50 ℃
●Environmental humidity : 85 %RH or less (Non condensing)
Warning
①Location where installation is not allowed.
●Don’t locate the instrument in direct sunshine and/or high temperature area.
●Don’t use the instrument in the high humid area.
●Don’t install the instrument in the place with the vibrations and shock.
●Don’t use the instrument where there is excess of dusts and fine particles.
●Don’t use the instrument where there are corrosive gas and salt and like that.
●Don’t install the instrument where there is rapid charge of temperature and humidity.
●Don’t install the instrument near the devices that are magnetized or generate an
electromagnetic field.
●Don’t install the instrument where the instrument may be affected by radioactivity or radial
rays.
●Avoid the location where chemical reaction may take place such as in a laboratory, or like that.
The temperature and humidity must use it in the place within the following ranges.
Do not set up this instrument in the following places. It might cause an unexpected faulty in the instrument.

III
②When you set up this instrument
Warning
Each dimensions of the instrument and required dimensions for the environmental spaces are as
follows:
Install based on the following sizes to set up this instrument, and secure the space for surroundings of this container.
Unit：mm
Front
Side
Rear
Panel cut size
or
2-φ4
（20）

IV
2. Power supply
Warning
Warning
Caution
3. Application note
Caution
Caution
Caution
Caution
Install each cable while turned off the power supply. Might it get an electric shock, and this instrument be damaged when working with the
power supply enters.
Confirm the indication of the power supply voltage of the instrument and the specifications are corresponding to the supplied power supply
before turning on the power supply. Consult with MINEBEA when not matching. There is danger of causing damage and the electric shock of
this instrument when using it like the uncertainty.
Groundline should be connected securely. When groundline is not connected, it may cause a malfunction of the instrument or electric shock to
the operator
Before this instrument is newly used, or when the strain gage applied transuducer is exchanged with a new one, please execute the calibration.
If not calibrating, it may cause not obtaining the correct measurement result, or a malfunction in the instrument and there is a possibility of the
damage of peripherals. Moreover, there is a similar possibility that the result is incorrect even if the calibration has been already made. Please
take the calibration again.
Please confirm connecting wires is correctly executed when you use this instrument. If it is not connected correctly, it may cause the
malfunctions on the instrument, and the damage to the peripheral equipments or even worse serious accidents.
CautionIt causes not obtaining a correct measurement result, and the malfunction when the setting change is carelessly executed while
measuring it with this instrument and there is a possibility of the damage of peripherals.。
Please do not give the impact such as throwing the thing at this instrument.
There is a possibility of causing the malfunction on this instrument, or causing the damage of the electric circuit.

V
4. CE conformity standard
This instrument has suited the following standard.
EN61326−1：2006
“Electrical equipment for measurement, control, and laboratory use − EMC requirements”
“Immunity test requirements for equipment intended for use in industrial locations”
EN61010−1：2001
“Safety requirements for electrical equipment for measurement, control and laboratory use”
The operating condition to conform this standard is as follows :
Caution
4-1. Place of installation
Please set up this instrument in the shielded case or control panel where EMC measures are
given.
4-2. Wiring
①Shield processing
Please make sure to shield all the signal cable by using the shielded cable or using the conduit
piping including the storage case and control panel.
Please make sure to shield the power cable by using the conduit piping including the storage case
and control panel.
②Grounding
Please make sure to apply the grounding through the case and control panel where EMC
measures are given with protective earth terminal.
Please observe the following conditions strictly when this instrument suits the above−mentioned standard.
If neglected, there is a possibility of not suiting the above−mentioned standard.

VI
History of revision
Date
Manual No.
Revision reason (Contents)
2007/06
DRW. NO.EN294-1348
First version
2009/06
DRW. NO.EN294-1348-A
Due to ECN.FN09-02035
Changed CE conformity standard EN61326-1:2006
-Addition-
“Immunity test requirements for equipment intended for use in
industrial locations”
2016/10
DRW. NO.EN294-1348-B
Due to ECN.FN10-02121A
・Change length of terminals (15) to (20)
・Minebea logo is changed
Due to ECN.FN16-02057
・「 MINEBEA Co., Ltd. Measuring Components Business Unit」
on the cover is deleted
2016/10
DRW. NO.EN294-1348-C
Due to ECN.FN10-02121B
・Delete the extra page number .「next page of cover and table
of contents page number Ⅱ」
・Repair the position of word .「Warning」、「！」
・Delete the extra white page .「next page of history of
revision」
・Add the white page .「next page of table of contents」
2016/10
DRW. NO.EN294-1348-D
Due to ECN.FN10-02121C
・Delete the extra white pages .
「next page of History of revision」「next page of Index」

Index
FORWARD........................................................................................................................................................ I
MARKS AND ARRANGEMENTS USED IN THIS MANUAL ........................................................................ I
FOR SAFE OPERATION ................................................................................................................................II
1. INSTRATION PLACE............................................................................................................................................................................................... II
2. POWER SUPPLY ................................................................................................................................................................................................... IV
3. APPLICATION NOTE ............................................................................................................................................................................................ IV
４.CE CONFORMITY STANDARD ...........................................................................................................................................................................Ⅴ
HISTORY OF REVISION ..............................................................................................................................VI
１． EACH FUNCTION AND NAME .............................................................................................................1
１-１.FRONT PANEL ..................................................................................................................................................................................................1
１-２.REAR PANNEL .................................................................................................................................................................................................. 2
２． CONNECTING METHOD.......................................................................................................................3
２-１.ALLOCATION OF THE TERMINALS ................................................................................................................................................................3
２-２.NOTES ON CONNECTIONS..............................................................................................................................................................................4
２-３.CONNECTION WITH STRAIN GAGE APPLIED TRANSDUCER ...................................................................................................................... 4
２-４.CONNECTION WITH POWER SUPPLY AND GROUND...................................................................................................................................6
２-５.CONNECTION WITH ANALOG OUTPUT..........................................................................................................................................................7
２-６.CONNECTION WITH THE AUTO ZERO BY THE EXTERNAL CONTROL INPUT...........................................................................................8
３． CALIBRATION........................................................................................................................................9
３-１.CALIBRATION METHOD................................................................................................................................................................................... 9
３-２.CALIBRATION PROCEDURE..........................................................................................................................................................................10
４． FUNCTION AND OPERATION ............................................................................................................13
４-１.SETTING OF ZERO ADJUSTMENT .............................................................................................................................................................13
４-２.SETTING OF GAIN ADJUSTMENT...............................................................................................................................................................13
４-３.SETTNG OF CALIB VALUE..........................................................................................................................................................................13
４-４.SETTING OF FREQUENCY RESPONSE.........................................................................................................................................................13
４-５.SETTING OF BRIDGE POWER SUPPLY VOLTAGE......................................................................................................................................13
５． HOW TO CHANGE THE FUSE............................................................................................................14
６． OPTION.................................................................................................................................................15
６-１.AUTO ZERO (CSA522B-P99) ..................................................................................................................................................................15
６-２.POWER SUPPLY VOLTAGE AC110 V(CSA522B-P61)......................................................................................................................16
６-３.POWER SUPPLY VOLTAGE AC200 V(CSA522B-P63)......................................................................................................................16

II
６-４.POWER SUPPLY VOLTAGE AC220 V(CSA522B-P64)......................................................................................................................16
７． TROUBLE SHOOTING.........................................................................................................................17
８． SPECIFICATIONS ................................................................................................................................23
８-１.SPECIFICATIONS............................................................................................................................................................................................23
８-２.GENERAL SPECIFICATION ............................................................................................................................................................................23
８-３.ACCESSORIES ................................................................................................................................................................................................23
８-４.OPTIONS .........................................................................................................................................................................................................24
８-５.STANDARD SPECIFICATION AT THE SHIPMENNT .....................................................................................................................................24
９． WARRANTY ..........................................................................................................................................25
９-１.WARRANTY .....................................................................................................................................................................................................25
９-２.REPAIR ............................................................................................................................................................................................................25

1
1. Each function and name
1-1. Front panel
①POWER LED
It lights by turning on the power supply (POWER switch ON).
②ZERO Fine control trimmer
It is a trimmer for the fine control of zero.
③ZERO Coarse control switch
It is a switch for the coarse control of zero. Some ±0.3mV/V input is shifted.
④GAIN Fine control trimmer
It is a trimmer for the fine control of amplification degree.
⑤GAIN Coarse control switch
It is a trimmer for the coarse control of amplification degree. It is 1000 times in L, 2000 times in M,
and 3000 times in H.
⑥CALIB switch
It is a switch that turns the CAILB value on and off.
⑦FILTER switch
It is a switch that changes the frequency response.
It is 25 kHz in OFF, and 1 Hz or 30 Hz in ON. (Change with the DIP switch on the circuit board.)
⑧GV switch
The power supply voltage of the bridge to the strain gage applied transducer is selected.
⑨MONITOR terminal
It is a terminal to monitor the output voltage value.
⑩AUTO ZERO LED (Options)
LED lights while auto zero executions
⑪AUTO ZERO ON switch (Options)
The analog output when pushing is adjusted to 0 volt.
Please release the auto zero when you calibrate.
⑫AUTO ZERO OFF switch (Options)
Auto zero is released.
①POWER LED
③ZERO coarse control switch
②ZERO fine control trimmer
④GAIN fine control trimmer
⑤GAIN coarse control switch
⑥CALIB switch
⑦FILTER switch
⑩AUTO ZERO LED
⑨MONITOR terminal
⑧GV switch
⑫AUTO ZERO OFF switch
⑪AUTO ZERO ON switch

2
1-2. Rear pannel
①Terminal board
The vaious strain gage applied transducers like load cell, etc., voltage output, current output,
external control input (Option), grounding wire and AC power supply are connected.
②I-OUT ZERO fine control trimmer
It is the fine control trimmer of the current output (DC4 mA).
③I-OUT SPAN fine control trimmer
It is the fine control trimmer of the current output (DC20 mA).
④Protective earth terminal
Connect the grounding line to suit the CE Conformity Standard.
Do not connect excluding the grounding wire.
①Termnal board
③I-OUT SPAN fine control trimmer
②I-OUT ZERO fine control trimmer
④protective
earth terminal

3
2. Connecting method
2-1. Allocation of the terminals
Name of terminal
Description
Usage
A
Bridge power supply(＋)
Strain gage applied transducer
C
Bridge power supply (－)
D
Amplifier input (＋)
B
Amplifier input (－)
E
Shield
A.G.
Analog ground
For check
F.G.
Frame groung
F.G.
Frame groung
F.G.
Frame groung
V ＋
Voltage output terminal(＋)
Voltage output
V －
Voltage output terminal (－)
I ＋
Current output terminal (＋)
Current output
I －
Current output terminal (－)
A/Z ON
Terminal for AUTO ZERO ON control
External control input
(Option)
A/Z OFF
Terminal for AUTO ZERO OFF control
A/Z COM
Common for controling auto zero
N.C.
No use
Do not use.
L
Power supply input terminal (L)
Power supply
N
Power supply input terminal (N)
Protective earth terminal
●The terminal F.G. and the terminal E are connected internally.
●The terminal A.G. and the terminal V-OUT (-), the terminal I-OUT (-) are connected internally.

4
2-2. Notes on connections
●Please go after turning off the power supply without fail when you connect wires.
●Please do not energize the power supply until the installation is completed.
●Keep the connecting cable with the instrument away from the noise source like power supply
line and I/O line for control as far as possible.
●Conduit wiring should be the type of exclusive one, and avoid using with another line together.
●Please connect the earthing cable securely. The earthing should be D class with single earth.
Don’t share with the earth of power supply system.
●The crimp type terminal lugs that suits the terminals of this instrument is as shown in the table
below.
Width of crimp type terminal lugs
Suitable crimp type terminal lugs
6.0 mm or less
1.25-3 or Y-type 1.25-3.5
2-3. Connection with strain gage applied transducer
①Case : Connection with one point of strain gage applied load cell
●When tension load is applied with the application of tension type or universal (compression / tension) type of load cell, and output of “+”
direction is required, please replace and connect "Amplifier input +”and "Amplifier input –”.
●When the total length of cable specifies more than 30 m, the accuracy may be out of warranty because the resistance of cable makes the
input voltage of the instrument decreased.
●When the length of cable is applied more than 10 m, or when the system is using the zener barrier, the CALIB value is not applicable.
●When this instrument suits the CE standard, please make sure to shield the signal cable by mounting this in the storage case or control
panel where EMC measures are given with protective earth terminal.

5
②Case : Connection with 2 to 4 points of strain gage applied transducers.
Plurality of of the strain gauge applied transducers might be connected parallel.
The parallel connection can be easily done by using optional SB-310 and SB-320 (Summing
type junction box).
●When tension load is applied with the application of tension type or universal (compression / tension) type of load cell, and output of “+”
direction is required, please replace and connect "Amplifier input +”and "Amplifier input –”.
●When the total length of cable specifies more than 30 m, the accuracy may be out of warranty because the resistance of cable makes the
input voltage of the instrument decreased.
●When the length of cable is applied more than 10 m, or when the system is using the zener barrier, the CALIB value is not applicable.
●When this instrument suits the CE standard, please make sure to shield the signal cable by mounting this in the storage case or control
panel where EMC measures are given with protective earth terminal.

6
2-4. Connection with power supply and ground
The connection with power supply and ground should be made as follows:
Beside, the grounding should be the D class with single ground.
Power supply voltage AC100 V (Permisible variable range AC90 V to AC110 V)
Power supply frequency 50/60 Hz
Power consumption Approx. 15 VA (without any options at AC100 V)
* When the power supply is AC110 V (CSA522B-P61), AC200 V (CSA522B-P63) or AC220 V
(CSA522B-P64), please refer the paragraph 6-2, 6-3 and 6-4.
Caution
●Connection with power supply and ground should be made securely as the figure indicates and also should be used within the specified
condition of power supply.
●The grounding for the instrument should be the D class with single ground. If negrected, it may cause an unexpected malfunction due to the
effects of noise from the other equipment.
●GND terminal and F.G. terminal is connected with the frame of the instrument.
●When this instrument suits the CE standard, please execute the single ground with protective earth terminal.
D class with single ground
AC100 V
（AC90 V to AC110 V）

7
2-5. Connection with analog output
The connection with analog output should be made as follows:
●Please use the shielded cable for the connection with analog output, and connect the shield with F.G. terminal of the terminal block.
There is a possibility of causing the malfunction by the influence of the exogenous noise etc. when not connecting it.
●When this instrument suits the CE standard, please make sure to shield the signal cable by mounting this in the storage case or control
panel where EMC measures are given with protective earth terminal.
V
A
DC0 V to DC10 V
Load resistance 500Ω or more
＋
－
＋
－
Shield
Shield
Load resistance 510Ω or less

8
2-6. Connection with the auto zero by the external control input
“A/Z ON”and “A/Z OFF”of the external control input are connected with “COM”terminal by using
the point of contact or open collector connection as shown in the figure below. (Effective when the
optional CSA522B-P99 is installed.)
Please refer the paragraph 6. for the function of each input
●Please use the shielded cable for the connection with analog output, and connect the shield with F.G. terminal of the terminal block.
There is a possibility of causing the malfunction by the influence of the exogenous noise etc. when not connecting it.
●When this instrument suits the CE standard, please make sure to shield the signal cable by mounting this in the storage case or control
panel where EMC measures are given with protective earth terminal.

9
3. Calibration
3-1. Calibration method
The load calibration method of this instrument has two kinds of the following.
①Calibration with actual load
②Electrical calibration by the CALIB input
Caution
●Before using the new instrument or after exchanging the strain gage applied transducer with a new one, be sure to make calibration. If
calibration is not made, the correct measurement results may not be obtained. or it may cause malfunction to the instrument and it may
damage the peripheral equipment. Moreover, even if calibration has made, there may occur the similar case as above when the result is not
correct. So, make precise calibration again.
●When the auto zero option (CSA-522B-99) is applied, please calibrate with pushing the A/Z OFF switch, or shorten between A/Z OFF and
A/Z COM for about 100 ms or more.
●Please make the calibraton while the CALIB switch turns off.
●The accuracy of calibration by CALIB input is 1/500 or so.

10
3-2. Calibration procedure
４-６. Calibration by actual load
Step 1 Connect the instrument with strain gage applied transducer.
Step 2 To stabilize this instrument and strain gage applied
transducer, please put it in the condition of energizing for
about 10 min.
Step 3 Please set the condition of the initial weighing (tare weight)
on the strain gage applied transducer.
Please cancel the initial weight (tare) if necessary with the
ZERO coarse control switch.
Some ±0.3 mV/V input shifts on the input conversion by the
ZERO coarse control switch.
Take the fine adjustment to set the voltage output value to
0.000 V or the current output value to 4.000 mA by ZERO fine
control trimmer.
The input of ±0.3 mV/V of input conversion can be changed by
ZERO fine control trimer.
When the voltage output is used together with the current
output, the voltage output is previously adjusted, and then the
current output is adjusted by I-OUT ZERO fine control trimmer
in the rear panel.
Step 4 Put the preliminary test force such as weights (Please use the
one near the preliminary test force as much as possible.) on the
strain gage applied transducer, and then set by GAIN coarse
control switch to become the voltage output value or the current
output value to be set.
The GAIN coarse control switch becomes 3 000 times at H,
2 000 times at M and 1 000 times at L.
Adjust the GAIN fine control trimmer to become the voltage
output value or the current output value to be set.
It comes in changeability by the GAIN fine control trimmer
the range of 1/1 to 1/4 of the full scale.
When the voltage output is used together with the current
output, the voltage output is previously adjusted, and then
adjust the current output by I-OUT SPAN fine control trimmer
in the rear panel.
Step 5 Remove the preliminary test force put in step 4., and confirm
that the voltage output value becomes 0.000 V or the current
output value becomes 4.000 mA.
It returns to step 3 when not becoming it.
Step 6 It is an end of the calibration by an actual load.
ZERO adjustment
SPAN adjustment
Check the ZERO point
Connect with the strain
gage applied transducer
Energizing for 10 min. after
turning on the power.
Complete
the cali
rati
n