Minebea CSA-593 User manual

Transmitter for Tie-bar gages
CSA-593
Instruction Manual
MINEBEA Co., Ltd.
Measuring Components Business Unit
294-1511A

I
Forwards
Thank you very much for your purchasing Minebea's Transmitter CSA-593.
This manual for CSA-593 explains the procedures and check point in operation. We would
like you to read through this instruction manual with much care for the best use of our product
to avoid malfunctions.
Moreover, the end user should keep the manual at hand.
Marks and references described in this manual
In this instruction manual, the following marks are used to understand the matters that
indicate ‘Don't do this.’, ‘Caution’ and ‘For reference’.
Please be sure to read following descriptions for safety.
Warning
This sign forewarns the presence of hazards that could result in serious injury or fatality when
incorrectly handled.
Be sure to read to prevent from malfunction.
Caution
This sign forewarns the presence of hazard that the user may result in serious injury.
This sign describes a attention and a limitation, etc., in the operation and the work

II
For safe operation
Be sure to read this manual before use.
1. Location of installation
Caution
Use the instrument under the following condition.
・ Environmental temperature : -10 ℃~ 70 ℃
・ Environmental humidity : 80 %RH or less. (Non-condensing)
Caution
Do not install the instrument in following places. It may cause damage to the instrument.
(1) Environment not to set up.
・ Places exposed to direct sunlight and/or places in the high temperature.
・ Places in a highly humid area.
・ Places where the instrument is directly affected by vibrations or mechanical shocks.
・ Environments with full of dust or coarse particulates.
・ Environments containing of corrosive gas or salt.
・ Environments with raid change in temperature and/or humidity.
・ Near the devices which generate magnetism or electromagnetic waves.
・ Environments vulnerable to radioactivity or radioactivity rays.
・ Environments where chemical reaction may take place such as a laboratory.

III
(2) Installation
Caution
Please secure and set up the space between this instrument and the device
Each dimensions of the instrument and required dimensions for the environmental spaces are as follows:
I/O signal side
D-SUB 9PIN Male
(26.9)
24.5
2.5 12.5
12.5
(86.4)
(94)
48.5
61
3-φ6.8 Fixed hole to CSA-593
Input side from tie-bar gage
D-SUB 9PIN Female
Unit: mm
Unit：mm
(Shaded part: Occupation area when main body is connected with connector plug.)

IV
2. Power supply
Warning
Be sure to check that power supply is OFF when installing each cable. If an operator works with
power ON, operator may have an electric shock or the instrument may be destroyed.
Warning
Before supplying power, check the indication of power voltage/specifi cations to be identical with
supplied power. If they are not identical, contact with Minebea. Without checking the above,
operation may cause damage to the instrument or electric shock.
Caution
Be sure to ground a grounding wire.
If a grounding wire is not grounded, it may cause malfunction of the instrument or an electric shock
to an operator.
3. Note for usage
Caution
When using the instrument, check that wires are connected properly. If neglected, correct
measurement cannot be obtained and it may cause malfunction in the instrument or cause damage
to peripheral devices or a critical accident.
Caution
Do not give the instrument such a shock as throwing something at it. It may cause damage or
destroy electrical circuits and even have loose resistance to environment or operability.
Caution
Do not remove the cover of the case of the instrument, nor peel off the panel sheet nor take the
instrument into pieces. If neglected, it may cause damage to the case and the panel sheet and even
have the possibility of damage to resist to environments or operational performances.

V
Revision history
Date Ref. No. Contents (Reason of revised)
2012/08 DRW. NO.294-1511 First version Ver.1.000

V
II
Contents
FORWARDS .......................................................................................................................................... I
MARKS AND REFERENCES DESCRIBED IN THIS MANUAL .............................................................. I
FOR SAFE OPERATION ......................................................................................................................II
1. LOCATION OF INSTALLATION ....................................................................................................................................................................II
2. POWER SUPPLY.........................................................................................................................................................................................IV
3. NOTE FOR USAGE .....................................................................................................................................................................................IV
1．GENERAL...................................................................................................................................... 1
2．EACH NAME AND FUNCTION ...................................................................................................... 1
3．WIRING ......................................................................................................................................... 2
3-1. NOTE FOR CONNECTING WIRES................................................................................................................................................................2
3-2. ALLOCATION OF CONNECTOR ..................................................................................................................................................................2
3-3. WIRING ........................................................................................................................................................................................................3
3-4. CONNECTION OF POWER SUPPLY ............................................................................................................................................................4
4．MEASUREMENT ........................................................................................................................... 5
4-1. PREPARATION ............................................................................................................................................................................................5
4-2. EXECUTION OF AUTOMATIC ZERO .........................................................................................................................................................5
4-3. MEASUREMENT ..........................................................................................................................................................................................5
5．AUTO ZERO（A/Z）....................................................................................................................... 6
5-1. SPECIFICATIONS ........................................................................................................................................................................................6
5-2. EQUIVALENT CIRCUIT OF THE EXTERNAL AUTO ZERO INPUT .............................................................................................................6
5-3. FUNCTION ...................................................................................................................................................................................................6
6．CHECK FUNCTION ....................................................................................................................... 7
6-1. SPECIFICATIONS ........................................................................................................................................................................................7
6-2. EQUIVALENT CIRCUIT OF EXTERNAL CHECK INPUT................................................................................................................................7
6-3. FUNCTION ...................................................................................................................................................................................................7
7．TROUBLE SHOOTING................................................................................................................... 8
7-1. EXECUTE TROUBLE SHOOTING.................................................................................................................................................................8
8．SPECIFICATIONS.........................................................................................................................11
8-1. SPECIFICATIONS ..................................................................................................................................................................................... 11
8-2. GENERAL SPECIFICATIONS .................................................................................................................................................................... 11
8-3. ACCESSORIES ......................................................................................................................................................................................... 11

V
III
9．WARRANTY AND REAPIR ............................................................................................................ 12
9-1. WARRANTY ...............................................................................................................................................................................................12
9-2. REPAIR......................................................................................................................................................................................................12

V
I

1
1．General
This instrument is a transmitter for tie-bar gage (350Ωtype / two pieces set).
2．Each name and function
(3) Connector for tie-bar gage (for SENSOR)
Connect a tie-bar gage through connector.
(4) I/O connector (I/O)
Connect a power supply and Input/Ooutput cable through a connector.
(5) Main body fixation hole
This is a hole to fix a unit. M6 screw is used for fixture.
Please fix by main body fixation hole (A) and (C) usually.
( * The screw for fixation is not attached. Please prepare the threaded hole processing on the
installatin side.)
(6) Protective ground terminal
Please ground this unit to prevent the noise such as static electricity. Please do not connect this
terminal other than the earthing conductor.
This terminal is common with the shielded terminal of a connector for tie-bar gage internally.
② Input/Output connector
（I/O）
③ Fixing hole（C）
① Connector for tie bar gage
（SENSOR）
④ Protective ground terminal
③ Fixing hole（A）
③ Fixing hole（B）

2
3．Wiring
3-1. Note for connecting wires
Caution
Please keep the following each item when you connect CSA-593. If neglected, it might cause an
unexpected breakdown and damage.
・ When connecting wires, turn off the power supply without fail.
・ Do not supply the electric power until the installation is completed. There is no switch that switches
ON/OFF of power supply in the CSA-593.
・ Please separate the cable connected with CSA-593 from the noise source such as I/O for the
control, power supply line as much as possible.
・ The tightening torque of protective ground terminal is showing below table.
Terminal board Tightening torque of terminal screw
Protective ground terminal 1.4 N･m
・ Please execute all wirings surely according to this instruction manual.
3-2. Allocation of connector
The pin allocation of connected each signal is shown as follows:
Connector for tie-bar gage (SENSOR)
Pin No. Name
1A
2B
3B'
4D
5D'
6 Shield
7C
8N.C.
9 Shield
I/O connector (I/O)
Pin No. Name
1
+24V
2
V-OUT+
3
V-OUT-
4
for adjustment 1
5
for adjustment 2
6
+24V COM
7
A/Z
8
CHECK
9
COM
Suitable plug (for I/O connector) : Equivalent to DE-9SF-N (JAE)
* Figure of a connector for tie-bar gage
seen from uniting side. (Socket side insert)
* Figure of a I/O connector seen from
uniting side. (Pin side insert)
Usage
Tie-bar gage
Tie-bar gage
Tie-bar gage
No use
Tie-bar gage
Usage
DC24 V
Tie-bar gage
Tie-bar gage
Tie-bar gage
Tie-bar gage
Input of Check
Common for A/Z and Check
Voltage output
No use
DC24 V (Common)
Input of Auto Zero
9
1 5
6 9
5 1
6
・ Connector plug is not attached.
・ The screw for fixing base is inch type thread.
・ Don’t connect with N.C. pin, adjustment 1 and adjustment 2.
・ The recommended connector cover is DE-C4-J6(JAE) or equivalent. The connector cover except
this may interfere with each other
When you want to raise the endurance rate to EMC, I/O connector cover is recommended to use
metallic.

3
3-3. Wiring
Connector for tie-bar gage (SENSOR)
Connector for input and output (I/O).
Caution
Please execute the wiring of external control input as shown in the figures. If neglected, it may cause
unexpected damage or misoperation.
A
E Shield
N.C.
C
E Shield
D’
D
B’
B
7
8
2
3
4
5
6
1
9
1
2
3
4
5
6
7
8
9
+24 V
V-OUT +
V-OUT -
Terminal 1 for adjustment
+24 V COM.
A/Z
CHECK
COM (for input of A/Z and CHECK)
Terminal 2 for adjustment
Don’t connect.
or
Voltage
output
DC24 V
Power suppl
y
V

4
When you want to raise the endurance rate for EMC.
* The shield is connected with the protective ground terminal by fixing with the clamp metal fittings
through a metallic cover and the I/O connector.
When you want to raise the endurance rate to EMC, the continuity of the cover and the shield is
recommended to be secured by using metallic for the I/O connector cover and clamping the cable
shield with metal fittings in the cover.
3-4. Connection of power supply
The power supply voltage and power consumption of CSA-593 is as follows:
Power supply voltage DC24 V (Permissible variable range: DC20 V ~ 26 V)
Power consumption Within approx. 50 mA (at DC24 V)
Caution
Please execute the connection of power supply surely, and use within the specified power condition.
If neglected, it may cause the unexpected trouble.
Protective grounding terminal
Metallic cover
Clamp metal fitting
Cable
Shield

5
4．Measurement
4-1. Preparation
The tie-bar gage is mounted to a tie bar according to the installation manual.
Please mount the tie-bar gage and connect with the I/O terminal of CSA-593 correctly according to [3.
Wiring], and turn on the power.
4-2. Execution of automatic ZERO
Please make sure to reset the output voltage by using A/Z (Automatic ZERO set) before the
measurement.
The lower or upper limit of output voltage in the product specification might be output in the initial
strain condition at the first mounting on tie bar because ZERO calibration at the shipment of tie-bar
gage is executed without mounting it on tie bar.
4-3. Measurement
CSA-593 becomes possible to measure after the execution of ZERO set, because SPAN calibration of
CSA-593 is executed at the shipment. The relation between the input range and output voltage is shown
in the below table.
Input (x10-6 strain) Output voltage (V)
+500 10
0 0
-500 -10
The output of tie-bar gage has the fluctuation element after turning on the power. Please use
CSA-593 after about 30 minutes has passed from turning on the power to work in stable condition.

6
5．Auto ZERO（A/Z）
5-1. Specifications
(1) Auto zero range : Approx. ±3 000×10-6 strain
(2) Auto zero required time : Approx. 60 ms
(3) Auto zero accuracy : Within ±5 mV
The result of auto ZERO is not retained in the electrical power failure.
5-2. Equivalent circuit of the external auto ZERO input
5-3. Function
(1) The auto ZERO function works by shortening of circuit for about 50 ms or more between the
external A/Z and COM, and the voltage output value becomes [0] (zero) after about 10 ms.
However, the measurement of auto ZERO changes depending on the input condition (turbulence,
etc.)
Please confirm the timing at the change with a CSA-593 itself when the condition changes in the
external control, and match the timing if necessary by the timer processing.
２. ２K
３３００P
２００Ω
A/Z
COM
+５
V

7
6．Check function
6-1. Specifications
(1) Output of check ：Approx. 5 V
The check function is used for maintenance.
6-2. Equivalent circuit of external check input
6-3. Function
The voltage output becomes DC+5 V while shortening the circuit between external CHECK⇔COM
regardless of the input condition from tie-bar gage.
２. ２K
３３００P
２００Ω
CHECK
COM
+５V

8
7．Trouble shooting
Please confirm the contents of the reference item when the following abnormal operation exists while using
CSA-593. Also, please contact with Minebea when there is no corresponding item, and when that abnormal
operation is not improved even if the countermeasures are executed.
7-1. Execute trouble shooting
Operates normally
Turn on the power again.
No
A
bnormal operation
Yes
Execute trouble shooting.
Start measurement
Normal operation

9
Supply power
voltage is satisfied with
the s
p
ecification.
Execute trouble shooting
Inform Minebea about the contents of
failure and situation in details.
No
Please supply power source suitable
for the specifications.
Yes
Voltage output is wrong.
No
A
uto ZERO
(External control input)
does not work.
1
No
Yes
The load resistance is
10 kΩor more No
Yes
Wiring is correct. No
Please set the wiring
correctly according
to 3-3.
Yes
Within the range of
auto ZERO operation. No
Please set the range
within the auto ZERO
operation.
Yes
Yes
Please set the load
resistance 10kΩor more.

10
Output fluctuates
abnormall
y
.
No
1
Inform Minebea about the contents
of failure and situation in details
Yes
No
The connected tie-bar gage was
broken or the signal path (signal
conductor) might be
disconnected.
Approx. 5V is output.
No
(1) Please confirm the condition of the connector
for I/O.
(2) Please confirm the operation of voltage output
by check function. (Refer to paragraph 6.)
Please remove the cable of tie-bar gage.
Measure the resistance value between 1 pin and 4 pin
of the connector for tie-bar gage side.
(Please set the connection of the measuring
instrument to ohm range.)
Measure the resistance value between 7 pin and 2 pin
of the connector for tie-bar gage side.
Measure the resistance value between 4 pin and 5 pin
of the connector for tie-bar gage side.
Measure the resistance value between 2 pin and 3 pin
of the connector for tie-bar gage side.
Voltage is output. No
Yes
・Between 1 pin - 4 pin=350Ω
・Between 7 pin - 2 pin=350Ω
・Between 4 pin - 5 pin=0Ω
・Between 2 pin - 3 pin=0Ω
Yes
Inform Minebea about the contents of
failure and situation in details
Yes