Omega Vehicle SecurityメーカーDRA-DCC-8の使用説明書/サービス説明書
ページ先へ移動 of 14
DRA-DCC-8 DIGIT AL TO 8 CURRENT LOOP CONVERTER User’s Guide http://www .omega.com e-mail: info@omega.com.
USA and Canada: Sales Service: 1-800-826-6342 / 1-800-TC-OMEGASM Customer Service: 1-800-622-2378 / 1-800-622-BESTSM Engineering Service: 1-800-872-9436 / 1-800-USA-WHENS M TELEX: 996404 EASYLINK: 62968934 CABLE: OMEGA Mexico and Latin America: T el: (95) 800-TC-OMEGASM F AX: (95) 203-359-7807 En Espanol: (95) 203 359-7803 e-mail: espanol@omega.
C o n t e n t s 1. MOUNTING INSTRUCTIONS 2. REPLACING FUSES 3. ASSEMBL Y 4. SUPPL Y VOLT AGE 5. MODES OF OPERA TION 5.1 0-20 or 4-20mA output current selection 5.2 Switch Settings 6. P ARALLEL CONTROL MODE 6.1 PLC Interface 6.2 The "E" (ENABLE) T erminal 7.
1. MOUNTING INSTRUCTIONS 2 The DRA-DCC-8 is designed for standard DIN rail mounting. Place the unit on the upper part of the mounting rail with the fastening tab facing down. Using a suitable flat screwdriver loosen the tab slightly and attach the unit to the rail.
3 The DRA-DCC-8 is powered by a DC power supply at a range of 15-32Vdc. In order to determine the minimum supply voltage, use the following equation: Vmin = 8 + Rload( Ω ) * 0.02 where: Vmin is the minimum required supply voltage. Rload( Ω ) is the maximum output load including the leads resistance.
4 Figure 2. SW5 MSB Self T est Mode * according to para #5.2 6. P ARALLEL CONTROL MODE * according to para #5.2 In the parallel control mode, the DRA-DCC-8 unit is controlled via a 15 bit bus. Three Address bits (A0-A3) select the proper current output channel and 12 Data bits (D0-D11) determine its value (A0 and D0 are MSB).
5 6.2 THE "E" (ENABLE) TERMINAL For E="1" the unit is enabled, which means that all input vectors are received and the output is updated. When E="0" the unit ignores any new input vector . The E terminal is recommended to be used as a strobe for parallel data which has a long setup time.
6 7.4.1 BAUD RA TE SELECT SW1 and SW2 select one out of four available baud rates. 300 BPS 4800 BPS 9600 BPS 19200 BPS OFF SW1 SW2 OFF ON OFF OFF ON ON ON 7.4.2 ID CODE Up to eight DRA-DCC-8s can be connected in a multidrop configuration. Switches SW3, SW4, and SW5 (MSB) set the ID code.
7 Note: If the value is omitted it will be treated as zero. Separators such as blanks or commas are not allowed. Example: Channel 4 in DRA-DCC-8 no. 7 has to receive the value of 981.
8 8.1 SELF TEST #1 (Communication Ports T est) In order to test the serial communication ports, this test mode conver ts the unit to a transponder for ASCII characters. Any transmitted character will be echoed to the host terminal. The host parameters should be set to: Baud rate : 4800, W ord length: 8 bits, Parity: even, Stop bit: 1 8.
9 11. DRA-DCC-8 CALIBRA TION Generally there is no need to calibrate the DRA-DCC-8 unit. However if calibration is required, the following steps should be carried out: T wo potentiometer trimmers, one for "Zero" and the other for "Span" are located on printed card 7040.
10 INPUTS: P ARALLEL INPUTS LOGIC LEVELS: DA T A HOLD TIME: MAXIMUM P ARALLEL INPUT RA TE: SERIAL COMMUNICA TION BAUD RA TES: P ARITY : STOP BIT : ST A TUS REPORT : MULTIDROP CAP ABILITY : OUTPUTS: OU.
RETURN REQUESTS / INQUIRIES Direct all warranty and repair requests/inquiries to the OMEGA Customer Service Department. BEFORE RETURNING ANY PRODUCT(S) TO OMEGA, PURCHASER MUST OBT AIN AN AUTHORIZED RETURN (AR) NUMBER FROM OMEGA’S CUSTOMER SERVICE DEP ARTMENT (IN ORDER TO A VOID PROCESSING DELA YS).
Where Do I Find Everything I Need for Process Measurement and Contr ol? OMEGA…Of Course! TEMPERA TURE ⻬ Thermocouple, R TD & Thermistor Probes, Connectors, Panels & Assemblies ⻬ W ire: T.
デバイスOmega Vehicle Security DRA-DCC-8の購入後に(又は購入する前であっても)重要なポイントは、説明書をよく読むことです。その単純な理由はいくつかあります:
Omega Vehicle Security DRA-DCC-8をまだ購入していないなら、この製品の基本情報を理解する良い機会です。まずは上にある説明書の最初のページをご覧ください。そこにはOmega Vehicle Security DRA-DCC-8の技術情報の概要が記載されているはずです。デバイスがあなたのニーズを満たすかどうかは、ここで確認しましょう。Omega Vehicle Security DRA-DCC-8の取扱説明書の次のページをよく読むことにより、製品の全機能やその取り扱いに関する情報を知ることができます。Omega Vehicle Security DRA-DCC-8で得られた情報は、きっとあなたの購入の決断を手助けしてくれることでしょう。
Omega Vehicle Security DRA-DCC-8を既にお持ちだが、まだ読んでいない場合は、上記の理由によりそれを行うべきです。そうすることにより機能を適切に使用しているか、又はOmega Vehicle Security DRA-DCC-8の不適切な取り扱いによりその寿命を短くする危険を犯していないかどうかを知ることができます。
ですが、ユーザガイドが果たす重要な役割の一つは、Omega Vehicle Security DRA-DCC-8に関する問題の解決を支援することです。そこにはほとんどの場合、トラブルシューティング、すなわちOmega Vehicle Security DRA-DCC-8デバイスで最もよく起こりうる故障・不良とそれらの対処法についてのアドバイスを見つけることができるはずです。たとえ問題を解決できなかった場合でも、説明書にはカスタマー・サービスセンター又は最寄りのサービスセンターへの問い合わせ先等、次の対処法についての指示があるはずです。