Minebea CSD-801 Instruction Manual
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INSTRUCTION MANUAL
FOR
CSD-801 DIGITAL INDICATOR
MINEBEA CO., LTD.
SHINKOH COMMUNICATION DIVISION
DRW.NO. 294-1011-A
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§1.
OUTLINE
CONTENTS
CSD-801 DIGITAL INDICATOR
Page
1
§2.
§3.
§4.
§5.
§6.
FEATURES
NAME OF EACH PART
3-1 Front panel
3-2
Rear panel 3
INSTALLATION
CONNECTION METHOD 5
5-1
5-2
Terminal board for power and transducer
Terminal board for digital control 5
5-3 BCD-OUT connector 6
5-4 Precautions for connection 8
HANDLING PROCEDURE
10
6-1 Connection 11
6-2 Power ON
11
1
2
2
4
5
6-3
6-4
Actual load calibration-I 12
Actual load calibration-II
6-5 Actual load calibration-III
6-6
Electric calibration-I
6-7 Electric calibration-II 20
6-8 Registration of each function by SET MODE 21
6-9 Start of measurement 21
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16
17
19
§7. FUNCTION IN MEASUREMENT MODE 22
7-1 Zero set function 22
7-2 AUTO ZERO, AUTO ZERO OFF function 23
7-3 Comparative setting function (Comparator) 25
7-4 CENTER ZERO function 27
§8. FUNCTION BY SET MODE (INITIAL SETTING FUNCTION) 28
8-i Required switch for SET MODE 29
8-2 ZERO TRACKING 30
8-3 Minimum effective digit setting function 34
8-4 Multiplication function 38
8-5 Pre-set cancellation function 40
8-6 Comparative setting condition
changeover function 43
8-7 Judgment function 46
8-8 Dummy 0 indication 49
8-9 Decimal point indication 51
8-10. Sign inversion function 53
8-11 Sign transfer function 55
8-12 BCD-OUT true conversion 57
8-13 Unit indication changeover 58
8-14 Manual Z/S function 59
8-15 Back-up Data Clear 60
§9. SELF-CHECK FUNCTION 61
§10. ERROR INDICATION 61
§11. SET MODE SETTING VALUE TABLE 65
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§12. ANALOG ADJUSTMENT 67
§13.
12-1
12-2
12-3
12-4
12-5
12-6
SPECIFICATION
13-1
13-2
Standard parts adjustment
Layout of adjustment parts 68
Adjustment of bridge voltage 69
GAIN adjustment
Change of CHECK value
Change of TARE cancel value
General specification 75
Block Diagram
13-3 Appearance Drawing
§14. ACCESSORIES
67
69
71
73
75
78
80
81
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§1. OUTLINE
The equipment is CPU mounted digital indicator for
instrumentation.
§2. FEATURES
o Remote setting function is provided to the converter
(transducer) power, and the error from cable length
will be cancelled.
o Flying capacitor is adopted at signal amplifier input
step. In common mode noise reduction ratio is set at
120dB.
o Drift at the signal amplifier is reduced as much as
possible by chopper amplifier.
o Maximum indication is 9999, with multi (multiplying)
function and, at dumy (-)0, indication up to (+)199980
is possible.
o Provided with BCD parallel-out output (open collector),
which can simultaneously output the total load and
net load.
o Setter is provided with 5-digits 2-steps digital switch,
as well as pre-set cancellation and judgment functions.
It can also be connected to MINEBEA digital setter
CSD-551B by using BCD parallel out connector.
o By its zero tracking function, secular change in zero-
point of the converter and the like will be cancelled.
1/81
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§ 3 -
3 -I Front panel
NAME OF EACH PART
M--sao 11 G;51 Ital IF meettnlO
C i
IIii
9
• WO I117 tali 0 rt 41
11
woo
fillrillini
0 CO igi IN Li
mum
1E1111
11
,
L'o
A*2
"I r0e I
0s
o�sEi
voce
lArE ZERO GAIN SPAN C/S
9 1F 35? , NINTH
1 5-1/2 digits 7 segments LED 12 Zero trimmer
2 C/Z LED
3 High LED
4
Low LED 15
5
High setting digi-switch
13
14
16 Set mode switch
GAIN rotary switch
Span trimmer
C/S rotary switch
]
6
Low setting digi-switch
7' V-out zero adjust trimmer
8 V-out span adjust trimmer 19 A/Z switch
9
I -out zero adjust trimmer
10
11 TA RE rotary switch
I -out span adjust trimmer
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17
18
20 Z/S switch (with LED)
21
2/81
Check switch (with LED)
A/Z off switch (with LED)
Unit select LED
§4. INSTALLATION
For the safe and complete operation of the instrument,
it is important that equipment is installed properly
in a suitable location. Ideally, a dry room with
uniform temperature environment will be the most
suitable location.
(1) When installing, select a location where mechanical
vibration and corrosive gas are minimal, with small
temperature change near the normal temperature.
(temperature compensated range i 0 % 50°C)
(2) The equipment is panel-mount type. When mounting to
a panel, prepare square holes at designated positions.
(Refer to panel outline drawing and panel cut
dimensions.)
4/81
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Z/S external contact--
I 0
A/2 external contact —I
A/Z OFF external contact --1-- C
CHECK external
HIGH contact output
contact ----
-0 0
Twist regulation --
LOW contact output //
0 -Zt
0 0--
<
r-
Cil
IN
11
A
11-0
0
0
0
-r-
rn
0
7t
0
0
0
7- 0
0 n
ulLoad cell etc.
Red
Blue
1-3
White
5
H.
o
tr
0
ct
0
0
h Load cell etc. Red
K
0
(r, tcs
1--•
IQ
Green
•
I
Shield
Ground earth
II
AC power input
Twist regulation -71:0
OK contact output
Twist
ERROR contact output
Twist regulation X
regulation rrIM
0
0
O
0
AC power input
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°Input circuit (Z/S,A/Z,OFF,CHECK)
°Output circuit (HIGH,LOW,OK,ERROR)
Photocoupler
z/s
a Contact
n/z
A/'7,10fF
IIECK
OM
5-3 BCD-OUT connector
°Pin arrangement
25 24 23
HP
Roev
o
ton
4r‘,"4
ft
r
50 49 48
o H
C
0
I.
M
.
N
POL
L at + data and H at - data when
polarity is high true.
OVF Data over (overflow) XXX-N
PC
Print command -(during data conversion) XXX-T
HOLD Data hold (fixed low true input)
221 21120
47
p
C
C
N
P
0
I
T
46 49 44
0
P
v
f
T 1
N
19 1 18 [17 16 15
1
8 1.4
1041 103
14 1 N
43
42 41
10'
i
- 4
40
I
8
4
101
T
39
14
2
2
38
13
1
1
12 11
8
37
36) 35 1 34
8
10
4 2
103
N
4 1 2 1 1
101
i
9 8 [
1
81 4 1 2 1 1
33 1 32
8 1
ERROR
COM
7 16
4 2 1 8
AC250V DC30V 0.
1 5 4
101
N
31
10'
f
8 4 2 1
30 29 28 27 1
Error
Signal ground
Net load
Total load
Naristor
3 2 1 1
1
100
N
26
4 2 1
10°
T
1
(Note) In case of TTL level output (option),
the true will be reverse.
°.Input circuit (HOLD) °Output circuit (Others)
HOLD
6/81
BCD — OUT
COM
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Timing Chart (When data command is high true output)
°Normal
0,2mS
270m8
DATA
ML
P. C.
°Hold signal input
HOLD
DATA
POL
P. C.
°Data over (overflow)
DATA
POL
60••••••••=.•••
ML
L
H
P. C.
O. V. F.
DATA
POL
P. C.
4RMDR
°Error
7/81
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5-4 Precautions for connection
(1) Wiring of sensor input (A, B, C, D, E, F, G)
For connection, use MINEBEA shild cable SKB-4012
(4-wires) or SKB-4011(6-wires). When using 6-wires
cable, maximum length of the cable should be up to
200m.
It is essential that this wiring is separated from
the wirings for power circuit and for control contact
output circuit. In any case, it must not be placed
near a cable with big current flow such as power
cable. Therefore, in case of conduit wiring,
a separate conduit from that of power circuit and
control contact output circuit should be used.
(2) Wiring of "Out" circuit (V-Out, I-Out)
Use 2-core shilding wire. The load shall be more
than 2 k0 at V-Out and less than 500 0 at I-Out
(option). Wiring should be as short as possible,
and as in (1) above, should be wired away from power
cable. or the like.
(3) Wiring of control signal input circuit (Z/S, A/Z, OFF,
CHECK)
In order to avoid the reception of external noise,
the input circuit is received internally at the
photocoupler, but the wiring should be short and
should be away from power cable or the like.
8/81
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(4) Wiring of control contact output circuit (HIGH, LOW,
OK, ERROR)
Wiring cable should be determined according to the
applied voltage, current and so forth. Normally,
the cable does not require shielding.
(5) Wiring of GND (earth) circuit
GND terminal is linked with the amplifier body.
From this terminal, pull out the earth wire and,
preferably solder to copper plate or copper rod and
bury in wet ground.
Please note that GND terminal and analog common
(V-Out-terminal etc.) are not common, so make sure
it will not short-circuit.
(6) Wiring of power circuit
"AC" terminal is a connecting terminal for alternate
current power circuit.
"AC" voltage is standard "100V", but if the equipment
is manufactured in specification other than "100V"
according to the customer's requirements, such voltage
value will be entered. Therefore, make sure that the
designated voltage is supplied at all times.
If the voltage supplied is below the rating, the
instrument will not operate, or if operated, its
performance cannot be guaranteed. If excessive
voltage is supplied, the fuse will cause the breaking
of wire, or, there is a danger of internal power
transformer being burned.
9/81
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HANDLING PROCEDURE
§6.
In order to utilize the various functions of CSD-801 effectively, adjustments shall be made
according to the following procedure.
In case of changing our standard adjusted product
to the customer's specification or changing the
specification of previously adjusted product.
Using digital output only
6-1
(Connection)
6 -2
(Power on)
6-3
(Actual load
calibration I)
4,
Combined use of
analog output
Basically, adjustment
in our factory will be
required.
Please contact our
sales representative.
In case the product has been shipped from
our factory, with adjustment required by
the customer's specification already completed.
Using digital output
only
6-1
(Connection)
6-2
(Power on)
6-4 6-6
(Actual load
calibration II•
Electric
calibration I)
6 -B
(Function' registration`
by set mode)
6 -9
(Start measurement)
6-8
(Function registration
by set mode)
4.
6-9
(Start measurement)
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6-1 Connection
Connect the transducer and the body (CSD-801) according
to Section 5.
When using 4-wires cable (equivalent to our SKB-4012)
for wiring the equipment to the transducer, use the
attached short cable (one each of red and white) and
shorten between A-F and C-G of the terminal board for
transducer, located on the back panel of the equipment.
6-2 Power ON
Check the voltage and current and supply the power.
(standard AC100V)
Confirm the self-diagnosis indication by the equipment.
The indications are as follows.
1) E- 0 :Internal memory will be checked. If there is
an error, a number will be indicated in the ❑ .
(For details, refer to Section 10.)
2) 0. 0 :Shows the version of the program. In case of
malfunction, inform this number.
3) :Indications will increment from the right end,
and finally all LED will flash.
4) :With the completion of the above, measuring
mode will start.
Also confirm that the condition of each LED
on the front panel are
Indication data
Lz/s
[A/z OFF.
'CHECK
LED
LED ON
LED OFF
as follows.
XXXX (some value)
OFF
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6-3 Actual load calibration-I (for changing specification,
no analog output)
(1) Maintain the condition with initial load on transducer.
(2) Adjust the TARE rotary switch (coarse adjustment) and
ZERO trimmer (fine adjustment) of the equipment, and
confirm that the indication will be 0 (zero).
(3) Apply maximum load on the transducer.
(4) What is the maximum indication required under the
condition of (3) above.
1) less than 999 4- to (5)
2) less than 1999 to (6)
3) less than 4999 to (7)
4) less than 9999 4- to (8)
5) more than 10000 to (9)
(5) Multiply the required indication by 10 times (x 10)
Eg,) If the maximum indication is 800, then
800 x 10 = P1500I
To obtain the calculated value, adjust the
'GAIN'
rotary switch and ISPANI trimmer on the front panel
with the attached micro-driver.
If the adjustment cannot be made, change the bridge
voltage by referring to 12-3 in page 69, and repeat
the same adjustment.
If the adjustment still cannot be made, proceed to (6).
12/81
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If the adjustment is completed, set mode (refer to
Section 8) will start, and by utilizing the minimum
effective digit setting function (Section 8-3, page 34)
cut the 108 digit.
After completion, pass through the set mode and proceed
to (10).
(6) Multiply the required indication by 5 times (x 5)
Eg.) If the maximum indication is 1500, then
1500 x 5 = 1 7500 1
To obtain the calculated value, adjust the IGAIN1
rotary switch and SPAN trimmer on the front panel
with the attached micro-driver.
If the adjustment cannot be made, change the bridge
voltage by referring to 12-3 in page 69, and repeat
the same adjustment.
If the adjustment still cannot be made, proceed to (7).
If the adjustment is completed, set mode (refer to
Section 8) will start, and by utilizing the multipli-
cation function (Section 8-4, page 38), set the
indication data at 1/5.
After completion, pass through the set mode and
proceed to (10).
(7) Multiply the required indication by 2 times (x 2)
Eg.) If the maximum indication is 3000, then
3000 x 2 = 60001
To obtain the calculated value, adjust the
rotary switch and
(SPAN
trimmer on the front panel
!GAIN]
with the attached micro-driver.
13/81
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If the adjustment cannot be made, change the bridge
voltage by referring to 12-3 in page 69, and repeat
the same adjustment.
If the adjustment still cannot be made, proceed to (8).
If the adjustment is completed, set mode (refer to
Section 8) will start, and by utilizing the multipli-
cation function (Section 8-4, page 38), set the
indication data at 1/2.
After completion, pass through the set mode and proceed
to (10).
(8) To obtain the required indication value, adjust the
GAIN
rotary switch and SPAN trimmer on the front
panel with the attached micro-driver.
If the adjustment cannot be made, change
voltage by referring to 12-3 in page 69,
the bridge
and repeat
the same adjustment.
If the adjustment still cannot be made, it
that it is out of the specification of the
is possible
equipment.
Please contact our sales representative.
If the adjustment is completed, proceed to
(10) .
(9) Multiply the required indication by 1/2 time (x 1/2)
Eg.) If the maximum indication is 16000, then
16000 x 1/2 =
To obtain the calculated value, adjust the
8000
GAIN
rotary switch and (SPAN trimmer on the front panel
with the attached micro-driver.
If the adjustment cannot be made, change the bridge
voltage by referring to 12-3 in page 69, and repeat
the same adjustment.
14/81
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If the adjustment still cannot be made, it is possible
that it is out of the specification of the equipment.
Please contact our sales representative.
If the adjustment is completed, set mode (refer to
Section 8) will start, and by utilizing the multipli-
cation function (Section 8-4, page 38), set the
indication data by x 2. After completion, pass through
the set mode and proceed to (10).
(10) Remove the load and confirm that the indication is 0
(zero) and that C/Z LED is lighted. If it cannot be
confirmed, adjust the front panel zero trimmer which
should give 0 (zero) indication.
Once again, provide maximum load and adjust the
trimmer to obtain the required indication.
Repeat the above operation several times.
(11) Remove the load and turn on the front panel
CHECK I
switch.
(12) Suitably turn the front panel rotary switch,
and adjust so that the indication will be at about
80% of the required maximum indication. Record the
indicated value. Hereafter, electric calibration
can be made by this value.
By turning on the CHECK switch again, check value
will be released.
SPAN)
15/81
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6-4 Actual load calibration•-II (for detection, no analog
output)
(1)
(2)
Apply initial load on the transducer.
Adjust the TARE rotary switch (coarse adjustment) and
ZERO trimmer, and confirm that the indication becomes
0 (zero).
(3)
(4) Adjust the
Apply maximum load on transducer.
,SPAN
trimmer to obtain required indication
at (3) condition.
(5) Remove the load and confirm that the indication is 0
(zero) and that C/Z LED is lighted. If it does not
work properly, adjust the ZERO trimmer, and the
indication will be 0 (zero). Apply the maximum load
again and adjust the SPAN] trimmer to obtain required
indication. Repeat the above operation several times.
(6) Remove the load and turn on the front panel (CHECK
switch. Check value will be indicated, and such value
should be recorded.
Hereafter, electric calibration will be possible with
this value.
By turning on the !CHECK switch again, the check
value will be released.
16/81
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6-5 Actual load calibration-III (for detection, with
analog output)
(1) Apply initial load on the transducer.
(2) Turn the front panel TARE rotary switch and adjust
so that the indication will be nearest to 0 (zero).
(3) Further, turn the front panel jZEROJ trimmer so that
the indication will be 0 (zero) and that "C/Z" LED
will be lighted.
(4) In case there is a voltage output (V-Out), separate
zero adjustment should be done. By adjusting the
trimmer No.1, located at the lower left side of the
front panel, V-Out should be 0.000 V when the indica-
tion is 0 (zero).
(5) In case there is an isolation output (I-Out), by
similaly adjusting trimmer No.3, I-Out should be
4.00 mA when the indication is 0 (zero).
(6) Apply maximum load on the transducer.
(7) Adjust the[SPANjtrimmer to obtain the required indi-
cation at (6) condition.
(8) If there are further analog output, adjust to obtain
required analog value with the following trimmer.
Front panel lower left side trimmer No.2 V-Out SPAN
Front panel lower left side trimmer No.4 I-Out SPAN
17/81
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(9) Remove the load and repeat the above (3)q,(8) several
times.
Note: ZERO, SPAN adjustment (trimmer No.liA) of analog
output are not interlocked with the indication.
Therefore, adjustments should be made by confirm-
ing the output of V-Out or I-Out with digital
multi-meter or the like.
(10) Remove the load and turn on the front panel
switch. Record the indication and analog value.
Hereafter, electric calibration will be possible with
this value.
(11) Hereafter, ZERO and SPAN adjustment of the indication
and analog output should be made by IZEROI and
trimmer, located at lower right of the front panel.
If, for some reason, there should be a gap between the
proportion of the indication and voltage output, adjust
the trimmer No.1"4.
ICHECKI
SPAN I
18/81
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6-6 Electric calibration-1 (for detection, no analog output)
(1) Apply initial load on the transducer.
(2) Adjust the TARE rotary switch (coarse adjustment) and
ZERO trimmer (fine adjustment), and confirm that the
indication will be 0 (zero).
(3) Turn on the front panel
will be given. Then, adjust the 1SPANJ trimmer so that
the value will be the same as the CHECK value in the
test report sheet, attached to the equipment.
(If there is no report sheet, adjust with the CHECK
value recorded at the time of actual load inspection.)
(4) Turn on the
will be 0 (zero). If it does not become 0 (zero),
adjust the front panel ZERO trimmer (fine adjustment),
and after confirming that the indication is 0 (zero),
then carry out (3) above.
CHECK
switch again and the indication
LCHECK1
switch. An indication
19/81
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6-7 Electric calibration-II
(for detection, with
analog output)
(1) Apply initial load on the transducer.
(2) With the front panel
0 (zero) indication as well as "C/Z" IJED light.
(If adjustment cannot be made, jointly use the
rotary switch.)
Also, adjust the trimmer No.1 (V-Out) or trimmer No.3
(I-Out), so that voltage output will be 0.000 V or
current output will be 4.00 mA when the indication is
0 (zero).
(3) Turn on the front panel
and analog output will be shown.
In the attached test report sheet, indicated value and
analog value are noted as the check values.
First, adjust the
SPAN
value will be the same.
Then, adjust trimmer No.2 (V-Out) or trimmer No.4
(I-Out) so that the analog value will be the same.
ZERO]
trimmer, adjust to obtain
'TARE'
CHECK
switch. Indication
trimmer so that the indicated
(4) By turning on the ICHECK switch again, the indication
will be 0 (zero). If it does not become 0 (zero),
repeat the above (2) and (3) several times.
20/81
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6-8 Registration of each function by set mode
By referring to Section 8. (page 28), register each
function.
Eg.) 1) Setting of decimal point
2) Changeover of the unit
3) Changeover of BCD-OUT true
etc.
ry
6-9 Start-of ,measurement
Turn on the
'Z/S
switch and start the measurement.
As required, set the value of comparative setter.
21/81
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