Azbil RN748 User manual
このたびは山武製品をお買いあげいただきまことにありがとうございます。
この製品を正しく安全にお使いいただくために、この取扱説明書を必ず
お読みになり、理解したうえでお使いください。
本書は、いつもお手元においてご使用ください。
本書は使用上の注意事項と取り付け・結線・パラメータ設定・仕様など
を説明したものです。
お買い上げいただいたは次のものが同梱されています。
取付器具 81409654-001 2個
取扱説明書(本書) CP-UM-5376 1部
本器は、入力(IN)に対して、制御動作正逆選択、回転角センター設
定、比例帯設定に従って操作量(OUT)を計算し、モータフィードバ
ック入力から計算したモータ開度(MFB)が操作量(OUT)に近づくよ
うにOPEN側とCLOSE側の制御出力のON/OFFを制御します。
本器の機能ブロックを次図に示します。
■ 取付場所
本器を取り付けるときは、次のような所に設置してください。
・ 供給電源およびリレー接点出力を除く入出力のコモンモード電
圧：対大地間の電圧は、33Vr.m.s.以下、46.7Vピーク以下、
DC70V以下としてください。
・ 高温、低温、高湿度、低湿度にならない所
・ 硫化ガスなど腐食性ガスのない所
・ 粉じん、油煙などの少ない所
・ 直射日光および風雨の当たらないように適切な処理のされた所
・ 機械的振動、衝撃の少ない所
・ 高圧線の下、溶接機の近くおよび電気的ノイズの発生源の近くで
ない所
・ ボイラなどのような高圧点火装置から15m以上離れた所
・ 電磁界の影響の少ない所
・ 可燃性の液体や蒸気のない所
■ 取付方法
・ 取り付け角度は水平位置から、後下がり10度以内、後上がり10度
以内としてください。
・ パネルは板厚9mm以下で剛性のあるものをご使用ください。
■ 外形寸法
取扱い上の注意
● パネル穴あけ図
取扱い上の注意
本器を操作される方の手が届く範囲内に、この製品の主電源遮断用のス
イッチを必ず設けてください。
また、本器の電源配線には遅動タイプ(T)の定格電流0.5A、定格電圧
250Vのヒューズを設けてください。(IEC127)
本器側面の端子配列ラベルで使用している記号の意味は下表のとおりです。
取扱い上の注意
●結線
● 正方向結線と逆方向結線
本器とモータ間の結線には、次のように正方向結線と逆方向結線の
2種類あります。
正方向結線とは、本器の出力が増加すると、
モータ
は時計方向(CW,
)に回転することです。
冷却制御など、制御内容により、モータを逆に回転させたいときは
二つの方法があります。
・ 結線はそのままで、本器の制御動作方向の切り替え機能で切り
替える方法
・ 逆方向結線として結線を入れ替える方法
です。
本器は、制御動作方向(正 /逆)の切り替えができます。モータとの
結線が正方向にしてあれば、どちらの制御でも考え方が単純化され、
トラブル時の対応も簡単です。
したがって、できるだけ正方向結線を行うようお勧めします。
CW : ClockWise(時計方向, )
CCW : CounterClockWise(反時計方向, )
取扱い上の注意
● 入出力間アイソレーション
実線で囲まれたものは他の信号と絶縁されています。
CP-UM-5376JE
モータドライバ直流/位置比例変換器
RN748
取扱説明書
使用上の制限について
確認してください
安全上の注意
警告 取り扱いを誤った場合に、使用者が死亡ま
たは重傷を負う危険の状態が生じることが
想定される場合。
注意 取り扱いを誤った場合に、使用者が軽傷を
負うか、または物的損害のみが発生する危
険の状態か生じることが想定される場合。 設 置
キー操作の際には先のとがったもの(シャープペンシルの先や針な
ど)で押さないでください｡故障の原因となります｡
本器は､仕様に記載された使用条件(温度､湿度､電圧､振動､衝撃､取
り付け方向､雰囲気など)の範囲内で使用してください｡
火災・故障の恐れがあります｡
本器の通風穴をふさがないでください｡
火災・故障の恐れがあります｡
本器への結線は定められた基準に従い､指定された電源､および施
工方法で正しく配線してください｡
火災・感電・故障の恐れがあります｡
本器ケース内部に線くず､切り粉､水などが入らないようにしてく
ださい｡火災・故障の恐れがあります｡
端子ねじは仕様に記載されたトルクで確実に締め付けてください｡
締め付けが不完全だと感電・火災の恐れがあります｡
本器の未使用端子を中継端子として使用しないでください｡
感電・火災・故障の恐れがあります｡
本器の結線後は端子カバーを取り付けることをお勧めします｡
感電の恐れがあります｡(本器は別売品の端子カバーを用意しています)
本器のリレーは仕様に記載された寿命の範囲内で使用してください｡
そのまま､使い続けると火災､故障の恐れがあります｡
雷サージの恐れのある場合は､当社製サージノンを使用してください｡
火災・故障の恐れがあります｡
注意
結 線
本器への通電前に配線が正しく行われていることを必ず確認して
ください。
本器への配線間違いは故障の原因になり、また危険な災害を招く
原因にもなります。
本器へ結線や取り付け、取り外しは必ず電源の供給元を切った状
態で行ってください。感電・故障の原因になります。
電源端子などの充電部には触らないでください。
感電の恐れがあります。
本器を分解しないでください。感電・故障の恐れがあります。
警告
記 号 内 容
〜交流
注意、感電の危険
注意
J1
お願い
機能概要
① 第1表示部 ：入力値(IN)や設定項目を表示します。
②第2表示部 ：操作量(OUT)、モータ開度(MFB)や各設定項目の設
定値を表示します。操作量(OUT)を表示していると
きは、outランプが点灯します。
③ モード表示灯 man ：MANUALモード(手動)のとき点灯します。
ev1〜ev3：イベントリレー出力がONしているとき点灯し
ます。
opn・cls：制御出力がONしているとき点灯します。
④
マルチステータス
表示灯 ：点灯条件と点灯状態を組みにして、優先度のつ
いた3組を表示します。
⑤[a/m]キー ：1秒以上押し続けると、AUTO/MANUALモード切り
替えができます。
⑥[display]キー ：運転表示で表示内容を切り替えます。バンク設定表
示から運転表示に戻します。
⑦ ＜、∨、∧キー ：数値の増減、桁送りに使用します。
⑧[para]キー ：設定表示の切り替えをします。
⑨[enter]キー ：設定の変更開始と変更中の数値の確定を行います。
⑩ ローダコネクタ ：使えません。
キー操作のフローを示します。
取扱い上の注意
LOC
● 位置比例制御デッドゾーンの設定例
設定表示で第1表示部にCS8を表示させてください。
を押すと、第2表示部がフラッシング(点滅)します。
[＜][ ][ ]キーで桁の移動や値の増減をしてください。
希望の数値でを押すと、フラッシングが終了し、データ
が確定します。
● 位置比例制御自動調整の開始の設定例
設定表示で第1表示部にC60を表示させてください。
を押すと、第2表示部がフラッシング(点滅)します。
[＜][ ][ ]キーで桁の移動や値の増減をしてください。
数値を1にしてを押すと、自動調整が始まります。
回転角センター設定、比例帯設定、モータ開度上・下限イベント設
定は、初期値から変更する場合に限り設定が必要です。
■ 制御動作正逆選択
本器のデジタル入力3(DI3:端子19−24間)のON/OFFで逆動作、正動
作が選択できます。
正動作、逆動作の違いは、
の図を参考にしてください。
また、運転中に正逆を切り替えて使うこともできます。
■ 調整と設定
本器、調節計、モータ、およびその他関連機器を正しく結線し、電
源を入れて、本器に対して次の順番で調整や設定を行ないます。
①自動調整→②回転角センター設定→③比例帯設定→④デッドゾーン
設定→⑤モータ開度上限・下限警報設定
それぞれの詳細を以下で説明します。
■ 自動調整
取扱い上の注意
・ 自動調整の方法
1.「C60:位置比例制御自動調整」を1としてを押します。
すでに1の場合もを2度押してエントリーします。
2.自動調整が始まります。
・第1表示部がCA.CLとなり、閉側のリレーがONします。
・モータが閉側に動き、第2表示部にMFBのカウント値を「全閉
調整値」に書き込みます。
・第1表示部がCA.OPとなり、開側のリレーがONします。
・モータが開側に動き、第2表示部にMFBのカウント値が表示さ
れます。カウントが安定すると全開調整が完了し、そのカウン
ト値を「全開調整値」に書き込みます。
また、全閉→全開にかかった時間を「全開時間」に書き込みま
す。ただし、この時間が240.0s以上の場合は240.0sとします。
・すべて終了すると、基本表示画面になります。
3.調整を中止する場合はを押します。
自動調整が始まるとでの調整中止とする以外のキ
ー操作ができなくなります。
次の場合は異常処理として各値は出荷時の設定に戻り、AL10を
表示します。AL10の表示を消すのは、再度の自動調整が正常終
了したとき、または電源リセットをしたときだけです。
・全開カウント−全閉カウント＜260
・全閉カウント＞全開カウント
・全閉から全開までの時間が5s未満
・モータフィードバック入力の断線アラーム(AL07)の発生が継
続、または頻発している
・MFBカウント値が安定する時間が5minを超えた
・モータフィードバック入力、または開閉リレーの誤配線
(ただし、誤配線のすべてを異常とは検出できません)
取扱い上の注意
■ 自動調整時の動作
本器は、モータとの結線まちがいとモータフィードバック入力の断
線、または短絡を検出する機能(AL07、AL10)があります。
正方向結線と同じように、逆方向結線も正常な結線と判断し、アラ
ームとはしません。
また、モータフィードバック入力が断線しても動作は継続します。
次の表は、モータを自動調整 (「C60：位置比例制御調整開始」を
「1：開始」に設定)したとき、結線により、どのような現象となる
かまとめたものです。
なお、モータは閉位置(反時計方向で回りきり)からスタートさせて
います。
表中の第2表示部の数値は例です。
● 正常な正方向結線の場合
● 正常な逆方向結線の場合
● 結線まちがいによるアラーム表示と原因
■ 回転角センター設定
回転角センターと入力(IN)が同じになったとき、操作量(OUT)が
50％になります。
動作の詳細は、の図
を参考にしてください。
■ 比例帯設定
比例帯設定の分だけ入力(IN)が変化したとき、操作量(OUT)が0〜
100％で変化します。
動作の詳細は、の図
を参考にしてください。
■ 回転角センターと比例帯の設定例
1.回転角センター:50%(12mA) 2.回転角センター:25%(8mA)
比例帯 :100%(16mA) 比例帯 :50%(8mA)
3.回転角センター:75%(16mA)
比例帯 :50%(8mA)
＜
＜
＜
＜
J2
運転準備
c60
設定操作
CA.CL
CA.OP
CA.CL
CA.OP
CA.CL AL 10
CA.OP
CA.CL
CA.OP
CA.CL AL 10
CA.OP
CA.CL AL 10
CA.OP
CA.CL AL 10
CA.OP
CA.CL AL 10
CA.OP
SP
-1
P
-1
各部の名称と機能
■ デッドゾーン設定
・ 位置比例制御のモータ開⇔モータ閉間のデッドゾーンとして設定
します。
設定の目安としては、マニュアル出力にして、ある一定の出力を
しているときに、この
デッドゾーン
を変更してモータのハンチン
グが止まる値がこの最小値です。
ぎりぎりに設定すると、モータが常に動いている状態となり、モ
ータの寿命を極端に縮めます。
出荷時設定は10.0％です。これを目安として、制御結果とモータ
寿命を考慮して設定してください。
■ モータ開度上限・下限イベント設定
モータ開度がモータ開度上限イベント設定値(Ｅ1)以上のとき、イベ
ント出力1がONとなります。
モータ開度がモータ開度下限イベント設定値(E2)以下のとき、イベ
ント出力2がONとなります。
位置比例制御に必須の設定ではありません。
イベント出力動作の詳細は下図のようになります。
ON/OFFのヒステリシス(HYS)は0.5％固定です。
■ 運転表示
キーを押すと、運転表示項目を変えることができます。
取扱い上の注意
■AUTO/MANUAL切り替え
キーを押すと「dI.ON」または「dI.OF」を第2表示部に点滅表
示し、そのまま1s以上押し続けると点滅が点灯に変わり、AUTOと
MANUALのモードが切り替わり、manランプが点灯あるいは消灯し
ます。
AUTOからMANUALへの切り替えでは、AUTOモードでの操作量を
保持したままMANUALモードになります。
マニュアルモードでは、[＜][∨][∧]キーで操作量(OUT)の値を変更
できます。
モードによる違いは次表のとおりです。
取扱い上の注意
■ マルチステータス表示灯
条件によって3種類の表示状態になります。
■制御出力強制ON/OFF
デジタル入力1(DI1:端子21−24間)とデジタル入力2(DI2:端子20−24
間)の状態によって、制御出力(OPEN側/CLOSE側)の状態を変える
ことができます。
取扱い上の注意
■ 推定位置比例制御
モータフィードバック入力のY/T/G線の断線や、モータのポテンシ
ョメータ劣化などによるモータフィードバック入力の異常を検出し
た場合、本器は推定位置比例制御になります。また、モータフィー
ドバック入力が正常になれば、通常の位置比例制御に戻ります。
推定位置比例制御の場合、イベント出力3はONとなり、それ以外で
OFFとなります。
参考
清 掃 ：計器の汚れを取る場合は、柔らかい布での乾拭きを行
ってください。
部品交換 ：部品交換は、おやめください。
ヒューズ交換 ：ヒューズを交換するときは、必ず指定の規格品を使用
してください。
規格 IEC127、遮断速度 遅動タイプ (T)、
定格電圧 250V、定格電流 0.5A
●入力(IN)
直流電流 ：4〜20mA
サンプリング周期
：100ms
指示精度 ：±0.1％FS±1digit(周囲温度23±2℃にて)
入力インピーダンス
：100Ω以下
入力断線時動作 ：ダウンスケール＋AL02
許容入力電流 ：30mA以下
許容入力電圧 ：4V以下(これ以上の電圧が印加されると入力回路が破壊す
る場合があります。)
● デジタル入力
入力形式 ：無電圧接点またはオープンコレクタ
許容ON接点抵抗
：250Ω以下
許容OFF接点抵抗
：100kΩ以上
許容ON残留電圧
：1.0V以下
ON時端子電流 ：約7.5mA(短絡時)、約5.0mA(接点抵抗250Ω時)
最小ホールド時間
：200ms以上
● モータフィードバック入力
許容抵抗値 ：100〜2500Ω
断線検出 ：AL07表示
● モータ駆動リレー出力
接点定格 ：AC250V、8A(抵抗負荷)
寿命 ：12万回以上
最小開閉仕様 ：DC24V 40mA
● イベントリレー出力1〜3
接点定格 ：AC250V/DC30V 2A(抵抗負荷)
寿命 ：10万回以上
最小開閉仕様 ：5V、10mA(参考値)
● 環境条件
・動作条件
周囲温度 ：0〜50℃(密着取り付けの場合は0〜40℃)
周囲湿度 ：10〜90％RH(結露なきこと)
定格電源電圧 ：AC100〜240V50/60Hz
電源電圧範囲 ：AC85〜264V50/60±2Hz
・輸送条件
周囲温度 ：−20〜＋70℃
周囲湿度 ：10〜95％RH(結露なきこと)
● その他仕様
消費電力 ：12VA以下
絶縁抵抗 ：電源端子−2次端子間 DC500V20MΩ以上
耐電圧 ：電源端子−2次端子間 AC1500V1min
電源投入時突入電流
：20A以下
停電不感時間 ：20ms以下
高度 ：2000m以下
質量 ：約250g(専用取付器具含む)
端子ねじ締付
トルク
：0.4〜0.6N･m
適合規格 ：EN61010-1、EN61326
過電圧カテゴリ ：CategoryII(IEC60364-4-443、IEC60664-1)
許容汚染度 ：Pollution degree2
E1
E2
運 転
アラームコード一覧表
AL0 1
AL02
AL07
AL 10
AL70
AL95
AL96
AL97
AL98
AL99
保 守
付属品・オプション部品一覧表
仕 様
形番構成表
J3
Fb
c58
アドバンスオートメーションカンパニー
本社
〈COMPOCLUBアドレス〉 http://www.compoclub.com
〈山武ホームページアドレス〉 http://jp.azbil.com
製品のお問い合わせ、計装のご相談は…
コールセンター: 0466-20-2143
〔ご注意〕この資料の記載内容は、お断りなく変更する場合もありますので
ご了承ください。 (17)
2005年 1月 初版発行(E)
2008年11月 改訂9版(A)
Thank you for purchasing the RN748.
Before operating the product described in this user’s manual, please
take note of the following points regarding safety.
Be sure to keep this manual nearby for handy reference.
This manual explains the handling precautions, mounting, wiring, list of
parameters and main specifications only.
■Unpacking
Check the following items when removing the RN748 from its package:
The RN748 calculates the MV (OUT) for the input (IN) according to the
selection of direct/reverse control action, center setting of the rotation
angle, and the setting of the proportional band; it also controls the
ON/OFF status of the control output on the OPEN side and the CLOSE
side so that the motor opening (MFB) calculated from the motor
feedback input gets closer to the MV (OUT).
The figure below shows the functional blocks of the RN748.
■Location
Install the RN748 in a location that fulfills the conditions listed below.
·For common mode voltages of I/O except for power supply and relay
contact output, the voltage to ground is 33Vr.m.s max., 46.7V peak max.,
and 70Vdc max.
·Neither high nor low temperature / humidity.
·Free from sulfide gas or corrosive gas.
·Little dust or soot.
·Locations protected from direct sunlight, wind or rain.
·Little mechanical vibration and shock.
·Not close to high voltage line, welding machine or electrical noise
generating source.
·Aminimum of 15 meters away from a high voltage ignition device for a
boiler.
·No strong magnetic fields.
·No flammable liquid or gas.
■Mounting Procedure
·Mounting should be horizontal so that the top is not tilted up or down
more than 10 degrees.
·The mounting panel should be steel with a thickness of less than 9 mm.
■External Dimensions
Handling Precautions
•To fasten the RN748 onto the panel, tighten the mounting
bracket screws, and turn one more turn when there is no play
between the bracket and panel. Excessively tightening the
screws may deform the RN748 case.
■Panel Cutout Dimensions
Handling Precautions
•When three or more units are gang-mounted horizontally, the
maximum allowable ambient temperature is 40°C.
Be sure to provide a switch within operator reach for shutting OFF the main
power supply to the RN748 in the main supply wiring.
Also, the main supply wiring requires a time-lagged (T) fuse (rated at 0.5A, 250
V). (IEC127)
The following table shows the meaning of the symbols in the terminal wiring
label on the side of the RN748:
Handling Precautions
•Before wiring the RN748, verify its model No. and terminal
Nos. written on the label on the side of the body. Inspect all
wiring after wiring work for the RN748 has been completed.
•Use M3 crimp-type terminal lugs for wiring to the terminals.
•Leave at least 50cm between I/O lead wires and power lead
wires. Also, do not pass these lead wires through the same
piping or wiring duct.
•When the power supply voltage of the motor that is connected
to the motor drive relay output is 100/200Vac, use an auxiliary
relay externally.
•Do not wire in the same duct for the motor drive terminals
(13),(14),(15) and the MFB input terminals (7),(8), (9), and also
do not use 6-core cable. Doing so might cause the RN748
malfunction due to noise during motor startup operation.
•Devices or equipment connected to the RN748 must have
basic insulation appropriate for the power supply voltage and
the maximum operating voltage of the I/O units.
•The RN748 requires a maximum of 5 seconds to start up after
the power is turned ON. The RN748 can be used after it has
started up. However, it is recommended to allow a warm-up
time of at least 30 minutes so that it attains the specified
accuracy.
●Connection of the RN748
●Direct wiring and reverse wiring
For wiring between the motor and the RN748, two wiring methods, direct
wiring and reverse wiring, are provided as described below. With direct
wiring the motor rotates clockwise (CW, ) as the output of the
RN748 increases.
If the control task requires the motor to rotate counterclockwise, as for
cooling control, two methods are provided as described below.
•The wiring is the same as for clockwise rotation, but the control
action direction is changed on the controller.
•Reverse wiring is used.
The control action (direct/reverse) can be changed on this unit. If direct
wiring is used for the wiring to the motor, the control action is simple to
understand and trouble can be solved easily. Therefore, direct wiring is
recommended where possible.
CW: clockwise,
CCW: counterclockwise,
Handling Precautions
•Terminal numbers of the motor are sample numbers from the
ECM3000. If you use a motor other than the ECM3000, make
connections following the manual for the motor.
●I/O isolation
Items surrounded by solid lines are insulated from other signals.
CP-UM-5376JE
RN748
Motor Driver (DC to Position
Proportional Control Converter)
User's Manual
Do not operate the keys with a mechanical pencil or sharp-tipped
object. Doing so might cause faulty operation.
Use the RN748 within the operating ranges recommended in the
specifications (for temperature, humidity, voltage, vibration, shock,
mounting direction, atmosphere, etc.). Failure to do so might
cause fire or faulty operation.
Do not block ventilation holes. Doing so might cause fire or faulty
operation.
Wire the RN748 properly according to predetermined standards.
Also wire the RN748 using specified power leads according to
recognized installation methods. Failure to do so might cause
electric shock, fire or faulty operation.
Do not allow lead clippings, chips or water to enter the controller case.
Doing so might cause fire or faulty operation.
Firmly tighten the terminal screws at the torque listed in the specifications.
Insufficient tightening of terminal screws might cause electric shock or fire.
Do not use unused terminals on the RN748 as relay terminals.
Doing so might cause electric shock, fire or faulty operation.
We recommend attaching the terminal cover (sold separately) after
wiring the RN748. Failure to do so might cause electric shock.
Use the relays within the recommended service life. Failure to do
so might cause fire or faulty operation.
Use Yamatake Corporation's "SurgeNon" if there is a risk of
power surges caused by lightning. Failure to do so might cause
fire or faulty operation.
CAUTION
Mounting bracket
(Accessory)
Terminal screw
M3
108
565
96
48
Gang-mounting
Stand-alone mounting
30min. 92
44 (48xN–4)
30min. +0.5
0+0.5
0
+0.5
0
92+0.5
0
DI
3
2
1
Digital input
Selection of direct/reverse
Forced open/close
Motor drive relay
Control outputs
24
SG
19
20
21
1
2
3
4
5
6
7
8
9
10
11
13
14
15
19
20
21
24
13
14
15
OPEN
CLOSE
Motor feedback input
1
2
Power supply
Te r m i nals
AC power supply
100 to 240Vac
3
4
5
6
Event outputs
Low limit for motor opening
High limit for motor opening
Feedback failure detection event
2
3
1
COM
10
11
Current
4 to 20mA
Inputs
mA
7
8
9
Yopen
close
T
G
This product has been designed, developed and manufactured for
general-purpose application in machinery and equipment.
Accordingly, when used in applications outlined below, special care
should be taken to implement a fail-safe and/or redundant design
concept as well as a periodic maintenance program.
•Safety devices for plant worker protection
•Start/stop control devices for transportation and material
handling machines
•Aeronautical/aerospace machines
•Control devices for nuclear reactors
Never use this product in applications where human safety may be
put at risk.
RESTRICTIONS ON USE
WARNING
Warnings are indicated when
mishandling this product might result in
death or serious injury to the user.
CAUTION Cautions are indicated when mishandling
this product might result in minor injury to
the user, or only physical damage to this
product.
Note that incorrect wiring of the RN748 can damage it and lead to
other hazards. Check that the RN748 has been correctly wired
before turning the power ON.
Before wiring or removing/mounting the RN748, be sure to turn
the power OFF. Failure to do so might cause electric shock or
faulty operatoin.
Do not touch electrically charged parts such as the power terminals.
Doing so might cause electric shock.
Do not disassemble the RN748. Doing so might cause electric
shock or faulty operation.
WARNING
Power supply
Current input
Motor feedback input
Digital input 1
Digital input 2
Digital input 3
Internal Circuit
Motor drive relay output
Event output 1
Event output 2
Event output 3
Outline of functions
Wiring
SAFETY PRECAUTIONS
(unit: mm)
Symbols Meaning
AC power supply
Caution, danger of electric shock
Caution
E1
Ensure that this user's manual is supplied to the user before the product
is used.
Copying or duplicating this manual in part or in whole is forbidden. The
information and specifications in this manual are subject to change with-
out notice.
Considerable effort has been made to ensure that this manual is free
from inaccuracies and omissions. If you should find any inaccuracies or
omissions, please contact Yamatake Corporation.
In no event is Yamatake Corporation liable to anyone for any indirect,
special or consequential damages as a result of using this product.
2005 Yamatake Corporation ALL RIGHTS RESERVED
NOTICE
Input (IN)
OUT
4 to 20mA dc
signal Motor opening
signal
DO
DO
DO
Control output motor
open operation
Control output motor
closing operation
DI
DI
DI
Motor feedback input
Event output1
Event output2
Event output3
Digtal input 3
Digtal input 1
Digtal input 2
Center setting of
rotation angle
Proportional
band setting
Proportional
band operation
Selection of
direct/reverse
control action
OPEN/CLOSE
operation
Open
relay output
Close
relay output
8
7
14 9
This unit
3
24Vac
2 1 Y
CW CCW
TG
CW
Open CCW
Close
Motor
This unit
3
24Vac
T
CW
Open CCW
Close
Motor
2 1 G
Y
Direct wiring Reverse wiring
78913 14 15
13 15
CW CCW
Mounting
(unit: mm)
Name Part No. Q'ty Remarks
Mounting Bracket 81409654-001 2
User's Manual CP-UM-5376E 1 This manual
(1) Upper display: Displays input values (IN) or settings.
(2) Lower display: Displays manipulated variable (OUT), motor opening (MFB)
and other parameter values. When the display shows the
manipulated variable (OUT), the “out” lamp lights up.
(3) Mode indicator: man: Lights when in manual mode.
ev1 to ev3: Lights when event relays are ON.
opn • cls: Lights when the control output is ON.
(4) Multi-status
indicator: Through the combination of lighting conditions and lighting
status, 3 priority groups can be displayed.
(5) [a/m] key: Switches between AUTO and MANUAL mode when pushed
for 1s or more.
(6) [display] key: Used to change the display contents in the operation display
mode. Returns display from bank setup display to operation
display.
(7) <, , , key: Used for incrementing/decrementing numeric values and
performing arithmetic shift operations.
(8) [para] key: Switches the display.
(9) [enter] key: Used to set the setup values at the start of change and during
the change.
(10) Loader connector: Not available.
The following shows the key operation flow:
Handling Precautions
•When the [para] key is held down for 2 seconds or longer,
"LoC" will appear. This means you are at the lock setup
menu. Since there is no item to set up, press the [display] or
[a/m] key to return to the operation display.
●Setting example for position proportional control dead zone
Display "C58" on the upper display in the setup display mode. When the
[enter] key is pressed, the numerical value on the lower display will start to
flash. Move the digit and increase/decrese the numeric value by pressing
the [<][ ][ ] keys. When the [enter] key is pressed at the desired numeric
value, the flashing will stop and the data will be set.
●Setting example for motor auto adjustment
Display "C60" on the upper display in the setup display mode. When the
[enter] key is pressed, the numerical value on the lower display will start to
flash. Move the digit and increase/decrese the numeric value by pressing
the [<][ ][ ] keys. Set the value to "1" and press the [enter] key, and auto
adjust will start. The following items must be set up only when they are
changed from their defaults: center setting of the rotation angle,
proportional band setting, motor opening high/low limit event setting.
■Selection of direct/reverse control action
You can select reverse or direct action of the RN748 by turning dital input 3
ON or OFF (DI3: between terminals 19 and 24) .
For the difference between direct and reverse action, see the figure in
"Setting example for the center of rotation and proportional band" (on
this page). Furthermore, you can switch between direct and reverse action
while running the RN748.
■Adjustment and setting
Connect the RN748, controller, motor and other related devices correctly.
Then turn the power on and make adjustments and settings in the following
sequence:
(1) Do motor auto adjustment →(2) set the center of rotation angle →(3)
set the proportional band →(4) set the dead zone →(5) set the high/low
limit events for the motor opening.
The sections below show the details of each procedure.
■Motor auto adjustment
Handling Precautions
•Be sure to execute auto adjustment. If the device is used
without doing auto adjustment, the motor may not operate
properly.
• Motor auto adjustment procedures
1. Set [C60: Motor auto adjustment] to 1 and press the [enter] key. If the C60
is already set to 1, press the [enter] key twice to perform this entry.
2. Motor auto adjustment then begins.
• The upper display shows and the relay on the CLOSE side is
turned ON.
• The motor rotates in the close direction, and the MFB count value is
written into [Fully closed adjustment value].
• The upper display shows , and the relay on the OPEN side is
turned ON.
• The motor rotates in the open direction, and the MFB count value is
shown on the lower display. When the counting stops, the fully open
adjustment is completed. This count value is then written into [Fully
open adjustment value]. Additionally, the period of time that has elapsed
from the fully closed position to the fully open position is written into
[Full opening time]. However, if this time is 240.0s or longer, this
parameter is set to 240.0s.
• When the motor auto adjustment has been completed, the basic display
screen will appear.
3. To cancel the adjustment, press the [display] key.
When motor auto adjustment starts, keys other than the [display] key,
which is used to cancel the adjustment, cannot be operated. If any of the
items below occurs, each value is returned to its default setting before
shipment and AL10 is shown as the troubleshooting process. AL10 is
cleared only when motor auto adjustment has been completed correctly or
when the power is reset.
• The count value between the fully closed position and fully open position
is less than 260.
• The fully closed count is greater than the fully open count.
• The period of time from the fully closed position to the fully open
position is less than 5s.
• The MFB burnout alarm (AL07) continues or occurs frequently.
• The time needed for the MFB count to stop exceeds 5min.
• The MFB or open/close relay has faulty wiring.
(However, not all faulty wiring can be detected as an error.)
Handling Precautions
•If the power to the RN748 is turned OFF during motor auto
adjustment of the position proportional control, motor auto
adjustment is cancelled when the power is turned ON again.
•Even if an AUTO/MANUAL mode changeover is made during
motor auto adjustment of the position proportional control, the
auto adjustment continues.
•If the control output (on the OPEN or CLOSE side) is forcibly
turned ON or OFF by the digital input 1 or 2 during auto
adjustment of the position proportional control, the auto
adjustment may continue. Even if it does not stop, the result
of adjustment is incorrect. It is necessary to repeat the
adjustment without forced ON/OFF.
•It is not possible to display the values saved for fully closed
adjustment value, fully open adjustment value, and full
opening time.
■Motor auto adjustment operation
This unit has functions (AL07, AL10) that detect incorrect wiring to the
motor and MFB burnout or short-circuit. In the same manner as described
for direct wiring, the unit judges the reverse wiring as correct and does not
give any alarm. In addition, even if MFB burnout occurs, the operation
continues.
The tables below summarize characteristics of each wiring method when
motor auto adjustment is made (when [C60: Motor auto adjustment] is set to
[1: Start]). At this time, note that the motor is started from the fully closed
position (rotated fully counterclockwise). Numeric values shown in the
Lower display column of the tables are examples.
●Correct direct wiring
●Correct reverse wiring
●Alarm indications and causes due to incorrect wiring
■Setting the center of rotation angle
When the center of the rotation angle is identical to the input (IN), the MV
(OUT) is 50%.
For details refer to:
Setting example "for the center of ratation and proportional band"
■Setting the proportional band
When the input (IN) has changed by the amount of the proportional band
setting, the MV (OUT) changes in a range between 0 and 100%.
For details refer to:
Setting example "for the center of ratation and proportional band" below.
■Setting example for the center of rotation and proportional band
1.
Center of rotation angle
: 50% (12mA) 2.
Center of rotation angle
: 25% (8mA)
Proportional band
: 100% (16mA)
Proportional band
: 50% (8mA)
3.
Center of rotation angle
: 75% (16mA)
Proportional band
: 50% (8mA)
<
<
<
<
<
<
(2)
(1)
(3)
(6)
(9)
(10)
(4)
(5)
(8) (7)
Part names and functions
Key operation
a/m
display
Press the
or key.
Press the key.
display
Press the
key
display
Press the
key
display
Press the
key
para
Press the key
para
Press the key
para
Press the key
para
Press the key
para
Press the key
para
Press the key
para
The mode indicators are lit sequentially during a period
of 5 to 6s after the power has been turned ON while
both the upper display and lower display are OFF.
When all mode indicators have been lit, the display changes
to the operation display.
Off
Input (IN) display
No key operation for 3min
or more.
MV (OUT) display
Motor opening (MFB) display
Setup display
Dead zone setup
Motor auto adjustment
Center of ratation angle setup
Proportional band setup
Setup of high limit
events for the motor opening
Setup of low limit
events for the motor opening
out
Off
Display when the power is turned ON.
Operation display
E2
Operation preparation
Digital input 3 (DI3) Control action
OFF Direct action
ON Reverse action
Item Indication Contents Initial value
Motor auto adjustment c60 0 : Stop 0
1 : Start
Upper display
Lit LED
Lower display
Motor motion
Remarks
CA.CL cls Shows a decrease CCW When the motor moves
like 2000 → 1500 and CCW with "cls" lit, motor
becomes stable. terminals 1 and 2 have
CA.OP opn Shows an increase CW direct wiring.
like 1500→3500 and
becomes stable.
Upper display
Lit LED
Lower display
Motor motion
Alarm indication Cause
CA.CL cls Increases and then CCW AL 10 G and Y
stops. are
CA.OP opn Decreases and then CW
connected
stops.
reversely.
CA.CL cls Increases and then CCW None. T and G
stops. However, the are
CA.OP opn Decreases and then CW MFB value does
connected
stops. not match the
reversely.
motor opening.
CA.CL cls Decrease or increase CCW AL 10 or none. T and Y
in unclear. are
CA.OP opn (Motor motion is CW
connected
changed before fully
reversely.
closed or opened.
CA.CL cls Increases and then CW AL 10 1 and 2
stops. are
CA.OP opn Decreases and then CCW
connected
stops.
reversely.
CA.CL cls Increases and then CW AL 10 1 and 2
stops.
connected
CA.OP opn Decreases and then CCW
reversely;
stops. T and G
are
connected
reversely.
CA.CL cls Decrease or increase CW AL 10 or none. 1 and 2
is unclear.
connected
CA.OP opn (Motor motion is CCW
reversely;
changed before fully T and G
closed or opened.)
connected
reversely.
↑
Upper display
Lit LED
Lower display
Motor motion
Remarks
CA.CL cls Shows a decrease like CW When the motor moves
3500 →1500 and CW with 1 and 2 and
becomes stable. G and Y connected
CA.OP opn Shows an increae CCW reversely, with "cls" lit,
like 1500 → 3500 motor terminals 1 and 2
and becomes stable. have reverse wiring.
↑
↑
↑
↑
↑
↑
↑
Item Indication Contents Initial value
Center of rotation angle SP
-1
0.0 to 100.0% 50.0%
Item Indication Contents Initial value
Center of rotation angle P
-1
0.1 to 999.9% 100.0%
100
50
00
[4mA]
50
[12mA]
100
[20mA]
Input (%)
(%)
Motor
opening
100
50
00
[4mA]
25
[8mA]
50
[12mA] 100
[20mA]
Input (%)
Motor
opening
(%)
100
50
00
[4mA]
50
[12mA] 75
[16mA]
100
[20mA]
Input (%)
(%)
Motor
opening
Direct action
(Motor opening direction
on input increase)
Reverse action
(Motor closing direction on
input increase)
Definition:
■Setting the dead zone
This is for setting the dead zone between motor opening and motor
closing in position proportional control. For setting reference, the
dead zone changes when the manual output is at a constant rate.
The value that is obtained when the hunting of the motor stops, is the
minimum value of the dead zone.
If exactly the minimum value is set, the motor is always moving,
causing the service life of the motor to be extremely shortened.
The default setting is 10.0%. With this default value as a reference,
the value can be set correctly by taking the control results and service
life of the motor into consideration.
■Setting the high/low limit for motor opening
Event output 1 goes ON when the motor opening is above the value set for
the motor opening high limit event (E1). Event output 2 goes ON when the
motor opening is below the value set for the motor opening high limit event
(E2).
This setting is not essential for position proportional control.
The figure below shows the details of the event output action.
The hysteresis (HYS) for ON/OFF is fixed at 0.5%.
■Operation displays
When the [display] key is pressed, the item that is displayed
changes.
Handling Precautions
• MV(OUT) contains an error of ±0.1% or less caused by factors
like the center of rotation angle and the calculation of the
proportional band.
■AUTO/MANUAL mode selection
Press the [a/m] key, and "d1.On" or "d1.OF" will start flashing on the lower
display. If the [a/m] key is held down for 1s or longer, the display stays lit
up, the mode switches between AUTO and MANUAL, and the man lamp
goes on or off. When the mode switches from AUTO to MANUAL, the MV
from AUTO mode is retained in manual mode. In MANUAL mode, you can
change the MV (OUT) using the [<], [ ] and [ ] keys.
The table below shows the difference between the two modes.
Handling Precautions
• When power is turned on, the AUTO/MANUAL mode that was
active before power off is retained. However, if the mode
before power off was MANUAL mode, the MV(OUT) is 0.0%
regardless of its value before power off.
■Multi-Status display
There are three types of display status depending on the condition.
■Forced opening/closing
You can change the status of the control output (on the OPEN side or CLOSE
side) according to the status of digital input 1 (DI1: between terminals 21 and
24) and digital input 2 (DI2: between terminals 20 and 24).
Handling Precautions
•The table below shows the priority of control output (on the
OPEN side/CLOSE side).
■Estimated position proportional control
When any motor feedback input failure is detected due to a break in the
Y/T/G lines for motor feedback input or deterioration of motor
potentiometer, estimated position proportional control operates. If the motor
feedback input failure is cleared, the normal position proportional control
resumes. Event output 3 is ON during estimated position proportional
control; it is OFF in other cases.
Note
If estimated position proportional control is activated with a high
frequency, the probable causes are:
•Auto adjustment was not implemented or failed.
•Deterioration or insufficient resolution of the motor potentiometer.
•Connection failure of the motor feedback input.
Cleaning: When cleaning the RN748, use a soft and dry cloth.
Parts replacement: Do not replace the parts.
Fuse replacement: When replacing the fuse, make sure that the replacement fuse
complies with all applicable safety standards:
IEC127, delayed cutoff speed type (T), rated voltage 250V, rated
current 0.5A.
●Input
DC current: 4 to 20mA
Sampling cycle: 100ms
Indication accuracy: ±0.1%FS±1digit (at ambient temperature 23±2°C)
Input impedance: Max. 100Ω
Burnout indication: Down scale + AL02
Allowable input current: Max.30mA
Allowable input voltage: Max.4V(a higher voltage might cause device failure)
●Digital input
Input type: Dry contact or open collector
Allowable ON contact resistance
: Max.250Ω
Allowable OFF contact resistance
: Min.100kΩ
Allowable ON residual voltage: Max.1.0V
Terminal current (ON): Approx.7.5mA (in case of short circuit).
Approx.5.0mA (in case of contact resistance 250Ω)
Minimum hold time: 200ms or more
●Motor feedback potentiometer input
allowable resistance: 100 to 2500Ω
Detection of line break: Displays AL07.
●Motor drive relay output
contact rating: 250Vac 8A (resistive load)
Life: Min. 120,000 operations
Min. switching specifications
: 24V dc, 40mA
●Event relay outputs (ev1 to 3)
contact rating: 250Vac/30Vdc 2A (resistive load)
Life: Min. 100,000 operations
Min. switching specifications: 5V, 10mA (reference value)
●Environmental conditions
• Operating conditions
Ambient temperature: 0 to 50°C (gang-mounted: 0 to 40°C)
Ambient humidity: 10 to 90%RH (non-condensing)
Rated power supply voltage: 100 to 240Vac, 50/60Hz
Power supply voltage range: 85 to 264Vac, 50/60±2Hz
• Transport conditions
Ambient temperature: –20 to +70°C
Ambient humidity: 10 to 95%RH (non-condensing)
●Other specifications
Power consumption: Max. 12VA
Insulation resistance: 20MΩmin. by 500Vdc megger between power terminal
and secondary terminal
Dielectric strength: 1500Vac for one minute between power terminal and
secondary terminal
Inrush current at application
of power: Max. 20A
Non-detected power failure
time: Max. 20ms
Altitude: Max. 2,000m
Mass: Approx. 250g (with the dedicated mounting bracket)
Terminal screw tightening torque:
0.4 to 0.6N•m
Applicable standards: EN61010-1, EN61326
Overvoltage category: Category II (IEC60364-4-443, IEC60664-1)
Allowable pollution degree: Pollution degree 2
<
<
Alarm code table
Maintenance
Model selection table
Alarm code Failure name Cause Corrective action
AL0 1 Input failure Sensor line break, incorrect Check wiring
(over range) wiring
AL02 Input failure Sensor line break, incorrect
(under range) wiring
AL07 MFB input failure Motor line break, incorrect Check wiring or
wiring confirm the MFB
input.
AL 10 Motor adjustment failure Motor line break, incorrect Check wiring,
wiring, motor power supply confirm the motor
failure. power supply,
readjustment.
AL70 A/D conversion failure Defective A/D converter Replace unit.
AL95 Parameter failure • Power turned OFF while • Restart the system.
fixing data • Reset data or replace
• Data corrupted due to unit.
noise, etc. (AL95/97: setting
AL96 Adjustment data failure • Power turned OFF while data, AL96/98:
fixing data adjustment data)
• Data corrupted due to • Replace unit
noise, etc.
AL97 Parameter failure Data corrupted due to noise,
(RAM area) etc.
AL98 Adjustment data failure Data corrupted due to noise,
(RAM area) etc.
AL99 ROM failure ROM (memory) error • Restart the system.
• Replace unit.
Item Indication Contents Initial value
Dead zone c58 0.5 to 25.0% 10.0%
Dead zone
* 1/4 of dead zone set value
* *
Relay on close
side ON
Relay on open
side ON
Control output (%)
MFB (%)
Item Indication Contents Initial value
High limit for motor E1 -199.9% to 95.0%
opening +999.9%
Low limit for motor E2 -199.9% to 5.0%
opening +999.9%
Operation type Direct action
●
Shows that the ON/OFF is changed at this value.
❍
Shows that the ON/OFF is changed at a point that
"1U" is added to this value.
High limit for
motor opening
Low limit for
motor opening
ONHYS
E1 setting
MFB
E2 setting
MFB
ON HYS
Operation
Display mode
Upper display Lower display
out lamp
Input (IN) Input value (IN) OFF state OFF
MV (OUT) Range: -10.0 to 110.0% MV (OUT) Lit
Setting: disable Range: -10.0 to +110.0%
Setting: disable in AUTO
mode (display does not
flash.)
Setting: enable in
MANUAL mode (display
flashes)
Motor opening
Fb(Fixed display) Motor opening (MFB) OFF
(MFB) Range: -10.0 to +110.0%
Setting: disable (for
estimation, flashing
value from 0.0 to 100%
AUTO mode MANUAL mode
MV (OUT) Changes with the input (IN) Can be changed manually on the
MV (OUT) display
man lamp OFF Lit
Display just Input (IN) display MV (OUT) display
after switching
Priority Condition Display status
Priority 1 Forced operation of control The whole display blinks.
output (on the OPEN side or
CLOSE side) by digital input
1/2 (DI1/2)
Priority 2 Conditions other than the above, The lighted portion moves
but an alarm occurring. alternately right and left.
Priority 3 Conditions other than the above MV (OUT) is displayed in a bar
graph in which one LED lights
up for every 10%.
Digital input 1 Digital input 2
Control output (on the OPEN side/CLOSE side) status
(DI1) (DI2)
OFF OFF Normal operation
ON OFF Forced open action (forced ON on the OPEN
side; forced OFF on the CLOSE side)
OFF ON Forced close action (forced OFF on the OPEN
side; forced ON on the CLOSE side)
ON ON Halt (forced OFF on the OPEN side; forced
OFF on the CLOSE side)
Priority Control output (on the OPEN or CLOSE side) status
Priority 1 (top priority) Forced ON/OFF operation by digital input 1/2
Priority 2 Auto adjustment
Priority 3 MANUAL mode
Priority 4 Normal position proportional control
Basic model No.
Additions Specifications
RN748A00 Size 48 x 96 mm
100 to 240 Vac
Motor drive relay output, MFB is added
3 event relay outputs
3 digital inputs
00 No additional treatment
D0 Inspection certificate provided
Y0 Complies with traceability certification
Specifications
Accessories and optional parts
Name Model No.
Mounting bracket 81409654-001 (Accessory)
Hard cover 81446915-001
Terminal cover 81446912-001
E3
Specifications are subject to change without notice. (08)
Advanced Automation Company
1-12-2 Kawana, Fujisawa
Kanagawa 251-8522 Japan
URL: http://www.azbil.com 1st Edition: Issued in Apr. 2005
9th Edition: Issued in Nov. 2008 (A)
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