Unipulse DS252 User manual
PAPERLESS PRINTER
DS252
OPERATION MANUAL
Rev. 1.03
Paperless Printer
I
BE SURE TO READ BEFORE USE
Introduction
Thank you very much for purchasing our paperless printer DS252.
This product, as is connected to our loadcell indicators or digital indicators through the SI/F (two-wire serial
interface), records indicated values etc. on a CF card. External equipment data other than our indicators can
also be recorded with optional BCD input or RS-232C interface.
Read this manual and understand the descriptions carefully before use.
After reading the manual, always keep it handy so that it can be referred to at any time.
2009/04/21
II
Safety Precautions
Be sure to read for safety.
In order to have an DS252 Paperless Printer used safely, notes I would like you to surely
follow the documents indicated separately on and .
Notes indicated here are the serious contents related safety. Please use after understanding the
contents well.
WARNING CAUTION
WARNING
Misuse may cause the risk of death or serious
injury to persons.
CAUTION
Misuse may cause the risk of injury to persons
or damage to property.
III
WARNING
●For the entire system to function safely when the DS252 becomes faulty or
malfunctions, provide a safety circuit outside the DS252.
●Do not modify the DS252. Doing so may cause fire or electric shocks.
●Do not install in the following environments.
- Places containing corrosive gas or flammable gas.
- Where the product may be splashed with water, oil or chemicals.
●Do not connect a commercial power source directly to the signal input/output terminals.
●For connection to the terminal block, be sure to use crimp-type terminals. Do not
connect bare wires.
●Be sure to ground the protective ground terminal.
●Before performing the following, make sure that no power is applied.
- Attachment/detachment of connectors of options etc.
- Wiring/connection of cables to the signal input/output terminals.
- Connection to the ground terminal.
●For connection to the signal input/output terminals, check the signal names and pin
assignment numbers and then carry out wiring properly.
●Before applying power, carefully check the wiring etc.
●Use at a proper power supply voltage.
●Do not damage the power cord. Doing so may cause fire or electric shocks.
●Do not touch any signal input/output terminal while applying power. Doing so may
cause electric shocks or malfunctions.
●In case of smoke, an abnormal smell or strange sound, immediately turn off the power
and disconnect the power cable.
●Never disassemble, pressure-deform, or throw the built-in lithium battery into a fire.
The battery may cause an explosion, fire, or leakage.
- Battery
Model: CR14250SE manufactured by SANYO Electric Co., Ltd.
Nominal voltage: 3V
Nominal capacity: 850mAh
Warning on design
Warning on installation
Warning on wiring
Warning for startup and maintenance
IV
CAUTION
●Do not install in the following environments.
- Places exposed to direct sunlight
- Where the temperature/humidity exceeds the range of the specifications.
- Places containing large quantities of salt or iron powder.
- Where the main body is directly affected by vibrations or shocks.
●Take adequate shielding measures when using at the following locations.
- Near a power line.
- Where a strong electric field or magnetic field is formed.
- Where static electricity, relay noise or the like is generated.
●For external inputs/outputs and options, use shielded cables.
●For turning on/off the power, be sure to keep intervals of 5 seconds or more.
●If you dispose of the product, handle it as industrial waste.
Caution on installation
Caution on wiring
Caution for startup and maintenance
Caution for disposal
V
Features of the DS252
■Recording of weighing data as electronic data
Since weighing data is recorded on a CF card in CSV format, the data can be retrieved by
commercially available spreadsheet software, so that it can be easily processed by a PC.
■Highly-advanced statistical operation function
Not only grand totals and sub totals, but also maximum, minimum, average, standard deviation,
frequency distribution, etc. can be recorded.
■Economical double recording
Due to both the recording function by which data from two indicators can be recorded and calculated, the
statistical operation of a double weighing machine with two weighing heads can be managed by one unit.
■Easy setting in an interactive manner
Each setting item and its current setting value are displayed on the LCD of the main body to facilitate
setting operation.
■Code sorting
Calculations sorted according to code can be made (100 on each channel at maximum) by assigning
codes (within six numerical, alphabetical and katakana characters) to recorded data.
■Perfect data backup
All setting values can be stored in a nonvolatile memory and other data in a lithium-battery-backed-up
memory.
■Selectable interfaces
Two SI/F channels are equipped as a standard. BCD input and RS-232C interface are available as an
option. (Only one channel of either BCD or RS-232C can optionally be connected.)
RoHS-compliant product
The parts and attachments (including the instruction manual, packaging box, etc.) used for this unit are
compliant with the RoHS Directive restricting the use of hazardous substances with regard to adverse
effects on the environment and human body.
What is RoHS?
It is an abbreviation for Restriction on Hazardous Substances, which is implemented by the European
Union (EU). The Directive restricts the use of six specific substances in electric and electronic equip-
ment handled within EU borders. The six substances are lead, mercury, cadmium, hexavalent chro-
mium, PBB (polybrominated biphenyls) and PBDE (polybrominated diphenyl ethers).
VI
How to read this manual
The contents of this manual are broadly divided into the following six chapters:
1 to 2...............Precautions for use, installation of the DS252 and connection with an indicator are
explained. You will find basic ways to use the DS252.
3........................Settings to make use of the DS252 are explained.
4........................Functions to make further use of the DS252 are explained.
5........................How to connect and use the optional BCD input and RS-232C interface is explained.
6........................Recorded data is explained.
7........................Troubleshooting is explained.
Appendix.......Specifications and after-sales service of the DS252 are explained.
Explanatory marks in this manual
Contents of the package
Attention or limitation for proper functioning of the DS252. Be sure to read this
to prevent incorrect operation.
Useful or referential information using the DS252. Recommendable in to read.
Name Quantity
DS252 body 1
Operation manual (this book) 1
Mini screwdriver 1
Control signal input connector 57-30500 DDK
(Attached when the optional BCD input is equipped) 1
Note
CONTENTS
VII
CONTENTS
1. Before turning on the power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
1-1. Part names and functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
1-2. Front panel keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1-3. Rear panel input terminal block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
1-3-1. Input equivalent circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
1-4. Power cord attachment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
1-5. Insertion and ejection of a CF card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2. Connection with indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
2-1. SI/F two-wire serial interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
2-1-1. About the SI/F . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
2-1-2. About the SI/F of the DS252 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
2-2. SI/F connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
2-3. Recording . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
2-4. About input channels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
2-5. Recorded data input channels and beep sound . . . . . . . . . . . . . . . . . . . . . . . 16
2-5-1. In case of individual record . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
2-5-2. In case of both record . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
2-5-3. What is recorded when there is no valid data at record-every time . . . . . . . . . . . 16
3. Basic operation of the DS252 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
3-1. Screen configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
3-2. Input value display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
3-2-1. Changing the input value display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
3-2-2. Contents of display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
3-2-3. Confirmation of recorded data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
3-3. Records . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
3-3-1. Recording of input values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
3-3-2. Contents of input values recorded . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
3-3-3. Recording of sub totals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
3-3-4. Batch total . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
3-3-5. Writing on a CF card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
CONTENTS
VIII
3-4. Various settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
3-4-1. Basic setting operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
3-4-2. Explanation of each setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
01 : Date/Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
02, 03: Recorded Data Selection Ach, Bch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
04, 05: Unit Selection Ach, Bch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
06 : Record Every ON/OFF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
07: Record Every Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
08 : Automatic Record ON/OFF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
09 : Interval Record ON/OFF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
10: Interval Seconds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
11 : GT/ST Recording Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
12 : Type of Sub Totals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
13, 15 : Target Value for Statistical Data Ach, Bch . . . . . . . . . . . . . . . . . . . . . . . . 41
14, 16 : Target Range for Statistical Data Ach, Bch . . . . . . . . . . . . . . . . . . . . . . . . 41
17 : Standard Deviation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
18 : Data Adding ON/OFF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
19 : Record Key ON/OFF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
20 : Batch Total ON/OFF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
21 : (Unassigned) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
22 : Code Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
23 : Number of Code Digits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
24, 25 : Registration of Code Table Ach, Bch . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
26 : Code Sorting Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
27 : File Writing Mode Setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
28 : File Overwriting Mode Setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
29 : Error Input ON/OFF Setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
30 : Option Table Ch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
31 : Maximum Recorded Count Setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
32 : Grand Total Timer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
33 : Both Recording Mode Setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
4. Advanced use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .51
4-1. Sorting by code and code table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
4-1-1. Code registration with the front panel keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
4-1-2. Code tables- difference from codes- . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
4-1-3. Code table registration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
4-1-4. How to call a code/code table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
4-2. CF card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
4-2-1. How to operate a CF card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
CONTENTS
IX
4-2-2. Explanation of each process . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
60：CF Card Remaining Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
61, 62：Loading of Code Table (Ach, Bch) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
63, 64：Saving of Code Table (Ach, Bch) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
65：Loading of Setting Value . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
66：Saving of Setting Value . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
67：CF Card Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
4-2-3. About the error display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
4-2-4. Setting file . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
4-2-5. Code table files . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
4-3. Maintenance mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
4-3-1. How to operate the maintenance mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
4-3-2. Explanation of each setting/operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
70：Version Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
71：Self Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
72：Beep Sound ON/OFF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
73：LCD Backlight Setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
74：LCD Backlight Timeout Setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
75：Key Input Timeout Setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
76：Display Switching Time Setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
77：Data Clear . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
78：Test Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
4-4. Over records . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
4-4-1. Range over (U/L) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
4-5. Deletion records . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
4-6. Date/time records . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
4-7. Initialization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
5. Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .75
5-1. BCD input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76
5-2. BCD input settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80
5-2-1. Basic operation of the BCD input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80
5-2-2. Explanation of each setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
40：BCD Input Monitor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
41：BCD Decimal Point Position . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
42：BCD Data Logic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83
43：BCD Minus Sign Logic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83
44：BCD Over Logic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83
45：BCD Strobe Logic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83
CONTENTS
X
5-3. RS-232C interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84
5-4. RS-232C settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
5-4-1. Basic operation of the RS-232C interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
5-4-2. Explanation of each setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87
46：RS-232C Transmission Speed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87
47：RS-232C Parity Bit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87
48：RS-232C Data/Stop Bit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87
49：RS-232C Terminator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
50：RS-232C Answer Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
5-4-3. Communication format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89
6. Recorded data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .91
6-1. Recorded data amount . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92
6-2. Data format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93
6-2-1. Data labels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93
6-2-2. Recording of input data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94
6-2-3. Recording of ST (sub total) / GT (grand total) . . . . . . . . . . . . . . . . . . . . . . . . . . . 95
6-3. CF card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97
6-3-1. Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97
6-3-2. Writing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97
6-3-3. File name . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98
6-4. Recorded data examples . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98
7. Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .101
7-1. Classification of trouble . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102
7-2. The DS252 does not operate normally. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103
7-3. The DS252 does not function normally. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105
7-4. Others . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106
Appendix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .107
List of unit settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108
Character input table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109
Introduction of options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110
Product specifications of the DS252 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111
External views . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112
1 Before turning on the power
2
1-1.Part names and functions
Part names and functions are briefly explained here.
Detailed explanations of respective parts will be given in relevant chapters respectively.
［Front panel］
Parts on front panel
Name Description
①LCD Displays the data sent from an indicator and setting values.
(16 digits ×2 lines).
②Status lamps
RECORD lamp (green) Lights in recording of data into the internal memory.
WRITE lamp (green) Lights in writing of data on a CF card.
ERROR lamp (red) Lights under abnormal conditions such that no CF card is inserted
at the time of writing on a CF card.
③Front panel keys Press them for operating and setting the DS252.
④CF card slot Slot to insert a CF card for recording.
①LCD
②Status lamps ③Front panel keys
④CF card slot
1 Before turning on the power
3
［Rear panel］
Note 1: The Bch WRITE terminal (10) functions to record batch totals when the setting of "20: Batch Total ON/
OFF" (page 44) is ON.
Note 2: The Bch ST terminal (11) functions as external error signal input when the setting of "29: Error Input
ON/OFF" (page 48) is ON.
Parts on rear panel
Name Description
①Power terminal block Connect the power cord. The power supply voltage is 24V DC.
②Input terminal block Connect various types of input.
(1) to (7) for Ach and (8) to (14) for Bch
(1) and (8): COM Common terminals of the external input terminal block.
(1) and (8) are internally connected.
(2) and (9): REC Short-circuit with the COM terminals for recording in the internal
memory.
(3) and (10): WRITE (Note 1) Short-circuit with the COM terminals for writing on a CF card.
(4) and (11): ST (Note 2) Short-circuit with the COM terminals for recording sub totals.
(5) and (12): GT Short-circuit with the COM terminals for recording grand totals.
(6) (7) SI/F Ach Input terminal for SI/F (Ach). (No polarity.)
(13) (14) SI/F Bch Input terminal for SI/F (Bch). (No polarity.)
③Option space Install an option for functional extension of the DS252. Either
BCD input or RS-232C can be installed.
④Frame ground (F.G.) Grounding terminal. Be sure to ground to prevent electrostatic
hazards etc.
①Power terminal
②Input terminal
③Option space
④Frame ground (F.G.)
block
block
1 Before turning on the power
4
1-2.Front panel keys
Although the key functions differ according to conditions, their basic functions, meanings and
designations are briefly explained here.
Designations and functions of keys
Key (designation) Description
①To go to the Ach code input (selection) screen and to input
characters.
②To go to the Bch code input (selection) screen and to input
characters.
③To record date/time and to input characters.
④To start interval records and to input characters.
⑤To stop interval records and to input characters.
⑥To write data on a CF card and to input characters.
⑦To record sub totals and to input characters.
⑧To record grand totals and to input characters.
⑨To delete the just previously recorded data from the target of grand
totals (sub totals) and to input characters.
⑩
⑪①②③ ④⑤
⑨⑥⑦⑧ ⑫
⑬⑭
⑮
(Code A)
(Code B)
(DATE)
(START)
(STOP)
(WRITE)
(ST)
(GT)
(DEL)
1 Before turning on the power
5
For inputting characters to register codes and code tables, see "4-1-1.Code registration with the front
panel keys" (page 53) and "4-1-3.Code table registration" (page 55).
Designations and functions of keys
Key (designation) Description
⑩To go into setting mode and to input characters.
⑪To select setting items backward.
⑫To select setting items forward.
⑬To select setting items and to move the cursor.
⑭To cancel input values or setting values and to return to the
previous screen.
⑮To record data and to enter setting values.
(Function)
(Up arrow)
(Down arrow)
(Right arrow)
(Escape)
(Record)
1 Before turning on the power
6
1-3.Rear panel input terminal block
1-3-1. Input equivalent circuit
The signal is input in the circuit by short-circuiting and opening between each input terminal and COM
terminal. Short-circuiting is performed by a contact (relay, switch, etc.) or non-contact (transistor, open
collector output, etc.)
■In using a transistor, FET, or SSR, be careful about withstand voltage, leakage current and saturated
residual voltage.
・Withstand voltage: 30V or more
・Leakage current at OFF-time: 100μA or less
・Saturated residual voltage: 5V or less
■The following shows a timing chart of the external input terminals on the rear panel.
Open collector
＊
Opening OFF
Short-circuiting ON
Vcc
←Inside
Ic=
COM Push
switch
+24V
1
Outside →
DS252
IN
ON when IN is 'H'.
Toggle
switch Relay
contact
Transistor
IN
App.7mA
output
REC/ WRITE/ ST/ GT OFF
ON MIN.30ms MIN.60ms
1 Before turning on the power
7
1-4.Power cord attachment
For connection to the terminal block, use crimp-type terminals (M3) as shown in the illustration so as
not to let the cable end spread out.
Connect + (plus) and - (minus) of the power supply to the red screw side and black screw side of the
terminal block on the rear of the DS252 respectively. The input voltage is 24V DC ±15%.
Be aware that the voltage will be dropped depending on the wire thickness and length.
Also, never input AC power. A failure will be caused.
Be sure to ground the F.G. terminal.
Recommended power supply
・DIN rail mounting type
IDEC PS5R-SC24 (Rated input: 100 to 240V AC)
・Panel embedded type
ETA SVS24SA (Rated input: 100 to 120V AC)
ETA SVM24SB (Rated input: 200 to 240V AC)
DC IN F.G.
Within 6mm
Red Black
＋−
Note
1 Before turning on the power
8
1-5.Insertion and ejection of a CF card
[Insertion]
Insert a CF card as far as it will go paying attention to its orientation.
Pull out the eject button and fold it to the left side.
[Ejection]
Put back the folded eject button, push the eject button and eject the CF card.
The lug side should face
downward.
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