Minebea CSD-892B-74 User manual

General
Installation/Wiring
Changeover of mode
Calibration
Setting of Function
Setting of Comparator
Check mode
Trouble shooting
Specifications & others
EN294-1963A
RS-232C interface
RS-422/485 interface
USB interface
CSD-892B-74
CSD-892B-76
Instruction Manual
WEIGHT CONVERSION MODULE

I
FOREWORD
Thank you very much for your purchasing our Weight Conversion module, model CSD-
892B-74 with RS-232C interface and CSD-892B-76 with RS-422/485 interface.
This manual for CSD-892B-74/76 explains the procedures and check points 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.
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.
Point!
This sign describes an attention and a limitation, etc., Please
read to master the performance of CSD-892B-74/-76 enough to
prevent the malfunction.

II
For safe operation
Be sure to read this manual before use.
Ⅰ.Location of installation
Caution
• Use the Instrument under the following conditions.
●Environmental temperature：-10 ℃~ 50 ℃（Preservation：-20 ℃~ 60 ℃）
●Environmental humidity：85 %RH or less. (Non-condensing)
Warning
• Do not install the Instrument in following places.
It may cause damage to the Instrument.
Environments 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.
Please set up into the operation control panel when the instrument is used in
the following places.
• Places where drop of water splashes.
• Places where many dust and fine particles exist.

III
Ⅱ.Installing the instrument
When you set up two or more devices, you can install on the same panel with no
clearance in between.
Caution
• Please secure and set up the space between this instrument and the device
■Outline dimensions
Unit : mm
Front Side
72
966.2
67.4
■Direction of installation
When you install it in the control panel, please set it up in the front on upward so that
the front panel that includes the display of this instrument may come forward
Installation on ceilingFront installation
Vertical
installation
Upward installation

IV
Ⅲ.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.
• Before supplying power, check the indication of power voltage/specifications 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.
Ⅳ.Instruction for usage
Caution
• Before using a new instrument, or when exchanging a strain gage applied transducer for a new
one, be sure to make calibration. If neglected, it may cause incorrect results in measurement
or malfunction in the instrument and moreover may cause damage to peripheral equipments.
When similar trouble occurs after calibration, be sure to make calibration again, even if
calibration has completed.
• 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.
• Improper change of setting during operation may cause incorrect measurement or malfunction,
or cause damage to peripheral equipments.
• 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.
• 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.
Point!
• At the time of shipment from the factory, the instrument has been plated with a clear
sheet on the panel sheet for protective purpose. In case of application, use the
instrument after removing the clear sheet first.
• Do not push the panel sheet on the instrument with the excessive strong force nor
push it with sharp edge object such as a driver.
• If neglected, it may cause damage to the panel switch and even have the possibility
of damage to resist to environments or operational performances.

V
Ⅴ.Conformity standard
This instrument has suited the following standard.
EN61326-1：2013
"Electrical equipment for measurement, control, and laboratory use
－EMC requirements"
"Immunity test requirements for equipment intended for use in
industrial locations"
JIS B 7611-2：2015
"Non-automatic weighing instruments - Metrological and technical
requirements and test - Part2: Measuring instruments used in transaction or
certification."
According to Annex C (Environmental Level H), (Environmental Level L).
RoHS compliant
Caution
• When the USB interface is used, the applied above standard is excluded.
• Please observe the following conditions strictly when this instrument suits the below. If
neglected, it may not conform to the above standard.
• Cable
Use the shielded cable other than the power cable.
• Shield processing
Please connect the shield of load cell with E terminal in upper terminal block.
Apply the following shield processing for CSD-892B-74.
The shield must connect with the connector on the main body by using the
shielded cable for the connection of the RS-232C interface via the engagement
screw of the RS-232C connector.
Select the shell of the RS-232C interface connector that measures of EMI is
applied.
Please make sure to do the shield prosessing on the cable for RS-232C interface
and the external control I/O.
Apply the following shield processing for CSD-892B-76.
Please connect the shield of RS-422/485 cable with the F.G. terminal on the lower
terminal block.
Please make sure to do the shield prosessing on the cable for RS-422/485
interface and the external control I/O.
• Grounding
The ground shall apply the individual ground by using the F.G. terminal in lower
terminal block.
• Surge countermeasure parts
When applying to EN61326-1:2013, connect an external surge absorber (Model：
RSP-DC24Q-4 Made by Okaya Electric Industries Co., Ltd.) or equivalent products
(breakdown voltage of 33V or more) in parallel to the terminal block (F.G., 24V, 0V)
.When applying to JIS B 7611-2:2015 level H, connect an external surge absorber
(Model：RSP-DC24Q-4 Made by Okaya Electric Industries Co., Ltd.) in parallel to
the terminal block (F.G., 24V, 0V) .When applying to JIS B 7611-2:2015 level L, no
surge absorbers are required.

VI
Caution
• Please observe the following conditions strictly when this instrument suits the JIS standard.
If neglected, there is a possibility of not suiting the above-mentioned standard.
• Setting functions
As for the details of the function of the value of C Function and Function, please
refer the paragraph 5-2 and 7-2.
CF-03 [Condition of over display] shall be applied the value of 2.
CF-08 [Net weight sign inversion] shall be applied the value of 0.
CF-11 [Effective range of zero set] shall be applied with less than the value of 02.
CF-13 [Data width of zero tracking] shall be applied with less than 4% of weighing capacity.
F-01 [Setting of digital filter] shall be applied with more than the value of 016.
F-02 [Setting of analog filter] shall be applied with less than the set value of 040.
F-05 [Setting of stabilization filter] shall be applied with more than the value of 092.
F-06 [Data width of stabilization filter] shall be applied with less than the set value of 020.
F-07 [Time width of stabilization filter] shall be applied with more than the value of 05.
F-10 [Stability detection data width] shall be applied with the set value of more than 20.
F-11 [Stability detection time width] shall be applied with more than the value of 10.
F-15 [Net weight offset function] hall be applied the value of 00000.
Ⅵ. Function set when this is used in the tank weighing system
Point!
• When using CSD-892B-74&CSD-892B-76 as a tank weighing system, the setting of
the function shall be changed to as below.
This becomes the suitable setting for tank weighing system by easing the condition of
[Over display], [Zero set] and [Tare weight cancellation].
Examine this setting based on the user’s weighing condition.
①Settingfunctions
CF-03 Set the value of [Condition of overload display] to 1: (At exceeding 110 % of
Weighing capacity ).
CF-10 Set the value of [Operating condition of ZERO set] to 1: (Operation by unconditional).
CF-11 Set the value of [Effective range of ZERO set] to 10: (±10 % of weighing capacity).
CF-16 Set the value of [Operating condition of tare weight cancellation] to 3: (in normal by
Gross weight <= Weighing capacity).

VII
Revision history
Date Instruction No. Reason of revised (Contents)
2022/04 DRW. NO. EN294-1963 First version ROM Ver.3.000
2022/05 DRW. NO. EN294-1963A
Due to ECN No.FN22-0210
-Correction-
V.Conformity standard
<Before the change>
RoHS directive
<After the change>
RoHS compliant
2-4.Connecting of power supply and ground [Point!]
2-5.Connection with external control I/O
<Before the change>
Please refer to [ Ⅴ. Applied standard] in [Safety
Precaution] about the grounding to compliant with
the conforming JIS standard or EMC directive.
<After the change>
Please refer to [ Ⅴ. Conformity standard] in [For safe
operation] about the grounding to compliant with the
conforming JIS standard or EMC directive.

VIII
CONTENTS
FOREWORD…………………………………………………………… I
For safe operation …………………………………………………… II
Ⅰ. Location of installation ……………………………………………………………… II
Ⅱ. Installing the instrument …………………………………………………………… III
Ⅲ. Power supply ………………………………………………………………………… IV
Ⅳ. Instruction for usage ………………………………………………………………… IV
Ⅴ. Conformity standard ………………………………………………………………… V
Ⅵ. Function set when this is used in the tank weighing system…………………………………………… VI
Revision history ……………………………………………………… VII
1. Each Name and Function ………………………………………… 1
1-1. Front panel …………………………………………………………………………… 1
1-2. Upper and lower part of front panel ……………………………………………… 3
2. Installation and Wiring …………………………………………… 4
2-1. Attaching to and Removing from a DIN rail ……………………………………… 4
2-2. Note for connecting wires ………………………………………………………… 4
2-3. Connection with strain gage based transducer ………………………………… 5
2-4. Connecting of power supply and ground ………………………………………… 10
2-5. Connection with external control I/O ……………………………………………… 11
2-6. Connection with interface…………………………………………………………… 12
2-7. Connection of surge absober ……………………………………………………… 16
3. Operation …………………………………………………………… 17
3-1. Changeover of mode ……………………………………………………………… 17
3-2. Display transition diagram ………………………………………………………… 19
4. Calibration mode…………………………………………………… 20
4-1. What is calibration? ………………………………………………………………… 20
4-2. Procedure of calibration …………………………………………………………… 21
4-3. Selection of calibration method …………………………………………………… 23
4-4. Fine adjustment and re-calibration of calibration ………………………………… 23
4-5. Item set if necessary after a calibration …………………………………………… 23
4-6. Details of calibration procedure …………………………………………………… 24
4-7. Fine adjustment of ZERO and SPAN……………………………………………… 30
4-8. Digital linearization ………………………………………………………………… 32
4-9. Calibration only of ZERO …………………………………………………………… 34
4-10. Simple calibration …………………………………………………………………… 35

IX
5. C function mode …………………………………………………… 39
5-1. Setting method of C function mode ……………………………………………… 39
5-2. Details of C function data…………………………………………………………… 40
6. Various operations by C function data ………………………… 42
6-1. Decimal point display position……………………………………………………… 42
6-2. A/D sampling ………………………………………………………………………… 42
6-3. Condition of overload display (Display of [OL] and [-OL]) ……………………… 42
6-4. Comparison operation display synchronization ………………………………… 42
6-5. Unit …………………………………………………………………………………… 42
6-6. Function to reverse the sign of net amount ……………………………………… 43
6-7. ZERO set …………………………………………………………………………… 43
6-8. ZERO tracking ……………………………………………………………………… 43
6-9. Power on ZERO …………………………………………………………………… 45
6-10. Tare weight cancellation …………………………………………………………… 45
6-11. Change of data stored place ……………………………………………………… 46
6-12. Stability detection while setting …………………………………………………… 46
6-13. Gravity acceleration compensation ……………………………………………… 46
6-14. Calibration data (For reference) …………………………………………………… 48
6-15. Stability detection time width in calibration ……………………………………… 48
6-16. Digital linearize clear………………………………………………………………… 48
6-17. C function clear ……………………………………………………………………… 48
7. Function mode …………………………………………………… 49
7-1. Setting method of function mode ………………………………………………… 49
7-2. Details of function data……………………………………………………………… 50
8. Various operations by function data …………………………… 54
8-1. Digital filter …………………………………………………………………………… 54
8-2. Analog filter ………………………………………………………………………… 54
8-3. Stabilization filter …………………………………………………………………… 54
8-4. Key lock function …………………………………………………………………… 56
8-5. Stability detection …………………………………………………………………… 56
8-6. Net amount offset function ………………………………………………………… 57
8-7. Hold …………………………………………………………………………………… 57
8-8. Operation of F/ENTER ……………………………………………………………… 58
8-9. External control I/O ………………………………………………………………… 58
8-10. Maintenance date, Maintenance number ………………………………………… 61
8-11. Lighting time of liquid crystal back light …………………………………………… 61
8-12. Function clear ……………………………………………………………………… 61
9. S function mode …………………………………………………… 62
9-1. Setting method of S function mode ……………………………………………… 62
9-2. Details of S function data …………………………………………………………… 63

X
10.Various operations by S function data…………………………… 65
10-1. Measurement mode ………………………………………………………………… 65
10-2. Control mode ………………………………………………………………………… 65
10-3. Operation of comparative signal …………………………………………………… 65
10-4. Comparative operation at NEAR ZERO (ZERO BAND) ………………………… 65
10-5. Comparative operation of FULL …………………………………………………… 65
10-6. Batch Monitoring Timer …………………………………………………………… 65
10-7. Set for operation at the time of batch start ……………………………………… 66
10-8. Full flow comparison interrupt timer ……………………………………………… 66
10-9. Medium flow comparison interrupt timer ………………………………………… 66
10-10. Dribble flow comparison interrupt timer …………………………………………… 66
10-11.Automatic free fall compensation ………………………………………………… 67
10-12.Judgement condition………………………………………………………………… 67
10-13.Waiting time for judge ……………………………………………………………… 67
10-14. Set for operation of compensation flow …………………………………………… 67
10-15. Set for operation of measuring finish output ……………………………………… 68
10-16. Set for discharging operation after measuring finish …………………………… 69
10-17.S function clear ……………………………………………………………………… 69
11.Measurement mode ……………………………………………… 70
11-1. Selection method of Measurement mode ………………………………………… 72
11-2. Simple comparison mode ………………………………………………………… 73
11-3. 5 steps comparator mode ………………………………………………………… 81
11-4. Sequential mode …………………………………………………………………… 87
12.Stored data of setting d ata ………………………………………… 94
12-1. Data stored in internal RAM ……………………………………………………… 94
12-2. Data stored in EEPROM …………………………………………………………… 94
12-3. Data that stored place can be changed…………………………………………… 94
13.Check mode ……………………………………………………… 95
13-1. Setting method of Check mode …………………………………………………… 95
13-2. EzCTS mode ………………………………………………………………………… 96
13-3. Confirmation of ROM version ……………………………………………………… 96
13-4. Confirmation of external control input …………………………………………… 97
13-5. Confirmation of external control output …………………………………………… 97
13-6. Confirmation of load cell output voltage (Monitor mode) ……………………… 98
14.RS-232C interface and RS-422/485 interface ………………… 99
14-1. Specifications of RS-232C interface (CSD-892B-74) …………………………… 99
14-2. Specifications of RS-422/485 interface (CSD-892B-76)………………………… 99
14-3. Operation mode……………………………………………………………………… 99
14-4. Command data format ……………………………………………………………… 102
14-5. Data format for stream mode ……………………………………………………… 116

XI
14-6. Calibration by RS-232C interface and RS-422/485 interface ………………… 118
14-7. Modbus mode ……………………………………………………………………… 132
14-8. Calibration by transmission through Modbus interface ………………………… 139
15.USB interface ……………………………………………………… 150
15-1. Specifications of interface ………………………………………………………… 150
15-2. Specifications of communication ………………………………………………… 150
16.Trouble shooting …………………………………………………… 151
16-1. Basic chapter ………………………………………………………………………… 151
16-2. External control I/O chapter………………………………………………………… 152
16-3. RS-232C interface chapter ………………………………………………………… 152
16-4. RS-422/485 interface chapter ……………………………………………………… 152
16-5. USB interface chapter ……………………………………………………………… 153
16-6. EzCTS chapter ……………………………………………………………………… 153
17. Specifications ……………………………………………………… 154
17-1. Specifications for analog …………………………………………………………… 154
17-2. Specifications for digital …………………………………………………………… 154
17-3. Interface ……………………………………………………………………………… 155
17-4. General specifications ……………………………………………………………… 155
17-5. Specifications at the time of shipment …………………………………………… 155
17-6. Accessories ………………………………………………………………………… 156
18.Error display ……………………………………………………… 157
19.Warranty …………………………………………………………… 159
19-1. Warranty ……………………………………………………………………………… 159
19-2. Repair ………………………………………………………………………………… 159
19-3. Life time of using parts ……………………………………………………………… 159
20.Pattern of display character ……………………………………… 160
21.Function setting table……………………………………………… 161

1
General
1. Each Name and Function
1-1. Front panel
①Unit display
③Condition display
⑨USB interface
connector
⑧F/ENTER key
⑤
FUNC. key
⑦CAL-S/ ▲key
⑥
CAL-Z/ key
②
Load display
④
Status LED
①Unit display section
Display the setting unit of weighing.
②Load display section
Display the Gross/Net, Overload or Error.
In the various setting mode, display the condition and the setting value.
③Condition display section
Display the condition of CSD-892B-74/76.
ZERO Light on when the zero calibration is processed.
SPAN Light on when the span calibration is processed.
mV/V Light on when mV/V value is displayed, like in the calibration by the
numeric input, or in monitoring the output value from load cell.
STABLE Light on when the weighing data is in stable condition.
TARE Light on when the tare weight cancellation is processed.
GROSS Light on when the display of weighing is set to the gross value.
NET Light on when the display of weighing is set to the net value.
CZ Light on when the displayed load value is zero, and within 1/4 of the
scale intervals.
LOCK Light on when the key lock is effective.
HOLD Light on when the holding is effective.
ERROR Light on when the error signal is output.
OUT1 ~ 5 The number lights on when the corresponding external output is turning on.

2
Genera
④Status LED
The sending / receiving status is monitored with two LED.
Name of LED Status display
TXD Blinks during the transmission.
RXD Blinks during the receiving.
⑤FUNC. key
Enter into the function mode, or change each status to the former status set in advance.
Shifts to Calibration setting mode by pushing for 2 seconds or more.
⑥CAL-Z/ key
Carry up the setting value.
Shifts to ZERO calibration mode of a simple calibration by pushing for 2 seconds or
more. Also shifts to calibration lock mode of a simple calibration.
Also shifts to calibration lock mode of a simple calibration by pushing for 2 seconds or
more CAL-Z/ and CAL-S/ ▲key at the same time.
⑦CAL-S/▲key
Set value increment. Shifts to SPAN calibration mode of a simple calibration by pushing
for 2 seconds or more.
⑧F/ENTER key
Resister the setting value, and execute function set in F/ENTER key.
(Selectable from None, Hold, ZERO set, ZERO clear, Tare weight cancellation, Tare
weight clear, Changeover of gross /net value.
Shift to the setting mode of comparator, Check the CC-Link station number.)
※Default function has set to Check the CC-Link station number.
⑨Connector for USB interface (mini-USB connector type-B)
USB interface is used for reading the set data from host and writing the parameter
details set for the measurement and calibrate.
The subject driver installation is needed.
Please download from Minebea's homepage, and install it to the PC.
Additionally, EzCTS_USB1 (Optional software for PC) is convenient for reading, writing,
saving and printing the setting data by connecting with PC.
Point!
• Please refer to [4-10. Simple calibration] for the details.

3
General
1-2. Upper and lower part of front panel
①Cover-1 and -2 of terminal block
②Terminals for power supply and
external control I/O
(Lower part terminals)
③Terminals for load cell
(Upper part terminals)
④Connector for
RS-232C interface
⑤Connector for
RS-422/485 interface
AA
A
B
B
C
C
CSD-892B-74 CSD-892B-76
①Cover-1 and -2 of terminal block
This is the protection cover of upper / lower terminal blocks.
Please connect after opening the cover when you wire to the terminal block.
②Terminals for power supply and external control I/O (Lower part terminals)
This terminal block is used for the connection with DC24V power supply, grounding and external
control equipment.
The external control I/O can use the input up to 3 points and the output up to 5 points at
maximum.
③Terminals for load cell (Upper part terminals)
4 units of strain gage based transducer (350 Ω) can be connected in parallel.
④Connector for RS-232C interface (for CSD-892B-74)
Use this connector for the connection with RS-232C interface.
⑤Connector for RS-422/485 interface (for CSD-892B-76)
Use this connector for the connection with RS-422/485 interface.

4
Installation & Wiring
2. Installation and Wiring
2-1. Attaching to and Removing from a DIN rail
This instrument adopts the rail mounting type with 35 mm width of DIN standard.
The procedures of attaching and removing are as follows:
Attaching method to a DIN rail
①Hang an upper claw of this instrument on the
upper side of DIN rail.
②Press this instrument onto DIN rail until a click
sound is heard.
③ Confirm the firm fixation.
Removing method from a DIN rail
① Confirm all the cables including the power
supply cable have come off from the main
body.
②Pull a lower claw of this instrument downward
from the front direction using a screwdriver,
and then remove this instrument from the DIN
rail.
2-2. Note for connecting wires
●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 main body.
●Do not drop or do not give the high impact because the terminal block is made by the
resin.
●Please separate the cable connected with the main body from the noise source such as I/
O for the control, power supply line as much as possible.
●Be sure to connect a grounding wire with exclusive use of D-type single grounding. Do not
share it with other groundings for power supply system.
●The tightening torque of terminal screws on the terminal board is 0.6 N･m.
●Please use the solderless terminal with 6.2 mm or less in the width.
(O-type 1.25-3 or Y-type 1.25-3)

5
Installation & Wiring
2-3. Connection with strain gage based transducer
This instrument can connect with the strain gage based transducers, such as load cells,
pressure sensors, etc. Please connect the load cell to the upper terminal block. We describe
here as an example of connection with load cells, and please process it similarly for
connecting with other strain gage based transducers.
🅐+ EXC Load cell power supply + Red
🅕+ SEN Sensing input + Orange
🅖- SEN Sensing input - Black
🅒- EXC Load cell power supply - White
🅓+ SIG Load cell input + Green
🅑- SIG Load cell input - Blue
🅔SHIELD Shield Yellow
Point!
• When tension is applied with the use of tension type or universal (tension/com-
pression) type load cell, and display of (+) direction is required, connect input (+) of
load cell to terminal B and input (-) of load cell to terminal D individually.
(Excluding Minebea's load cell of CLS-A, CL- B, UL(A) and UT(A)).
• Cable color is Minebea's standard.
(Excluding the Minebea's load cell LSM-B series.)
①Case 6-wires type connection cable
Load cell power supply + (Red)
Sensing input + (Orange)
Sensing input - (Black)
Load cell power supply - (White)
Load cell input + (Green)
Load cell input - (Blue)
Shield (Yellow)
+SIG
-SIG
+EXC
-EXC
Load cell
Point!
• When the length of CAB-501 (Minebea's standard cable) is more than 100 m
totally, the accuracy may be out of warranty as the remote sensing function of the
instrument does not work enough due to the resistance of the cable.
• Shorten the remote sensing input + and remote sensing input - near the main body
of load cell. When the short is made near the instrument, the sensing function does
not work as it is.

6
Installation & Wiring
②Case 4-wires type connection cable
Load cell power supply + (Red)
Load cell power supply - (White)
Load cell input + (Green)
Load cell input - (Blue)
Shield (Yellow)
+SIG
-SIG
+EXC
-EXC
Load cell
Short-bar attached.
Point!
• When you use the 4-wires cable, shorten the load cell terminals A - F with the
attached short-bar. CSD-892B-74/76 does not work in normal operation when the
terminal F and G is in the open status.
• When the length of CAB-502 (Minebea's standard cable) is more than 30 m totally,
there may have the case that the accuracy is out of warranty due to the resistance of
cable, the input voltage of the instrument will be decreased.
• When you use a zener barrier, connect by using above method with 4-wires cable.