響應(yīng)時(shí)間說明-中英對(duì)照
響應(yīng)時(shí)間是輸入頻率的比例輸出從10%轉(zhuǎn)換成最大的校驗(yàn)值的90%改變的要求的時(shí)間；響應(yīng)時(shí)間影響繼電器的傳輸速度。  繼電器相應(yīng)時(shí)間
如果你需要不同的相應(yīng)時(shí)間，接通Dynalco
標(biāo)準(zhǔn)響應(yīng)時(shí)間是全范圍150毫秒標(biāo)準(zhǔn)輸入頻率： 0-80赫茲量程到0-20，000赫茲量程。
低于80赫茲響應(yīng)時(shí)間比例較慢。
當(dāng)提供其它響應(yīng)時(shí)間時(shí)，不推薦修改領(lǐng)域，可能導(dǎo)致?lián)p害，造成產(chǎn)品保證無效。
如果你需要不同的繼電器響應(yīng)時(shí)間，請(qǐng)聯(lián)系Dynalco
調(diào)整個(gè)別給定值
1.證實(shí)SST-2000A-/H校驗(yàn)到正確的量程頻率范圍(參閱第22 頁)。
2. 要求的工具：一把非常薄的螺絲刀或者一件變壓器調(diào)整工具；信號(hào)發(fā)生器(Dynalco提供的F-16或者類似工具)。
3. 提供一個(gè)信號(hào)來源；使用F-16信號(hào)發(fā)生器或者相似零值信號(hào)源頭，或者使用頻率信號(hào)在發(fā)動(dòng)機(jī)上產(chǎn)生磁性加速。
4. 將一個(gè)頻率信號(hào)傳輸?shù)浇K端5和6。輸入頻率應(yīng)該等于給定值調(diào)整的目標(biāo)RPM值；
設(shè)置點(diǎn)頻率（Hz）= 飛輪上的齒數(shù)或孔數(shù) RPM x No./60
例如： 為一個(gè)齒輪在800 RPM旋轉(zhuǎn)的72齒計(jì)算給定值頻率。
頻率（Hz）= (800) x （72 齒）/60 = 90Hz (終端5和終端6)
選擇方法1：當(dāng)那些發(fā)動(dòng)機(jī)未運(yùn)行時(shí)，調(diào)整確定點(diǎn)；
當(dāng)發(fā)動(dòng)機(jī)未運(yùn)行時(shí)，而您沒有模擬RPM儀器時(shí)，使用信號(hào)發(fā)生器調(diào)整個(gè)別給定值。
1．?dāng)嚅_終端5和6的連線；標(biāo)明或者確定電線的位置保證正確的替換；
2. 將計(jì)算的設(shè)定點(diǎn)頻率施加給終端5(HI)和6(COM)；
3. 將運(yùn)行電源接入SST-2000A-/H；選擇電源時(shí)，見的SST-2000A-/H或者spec金屬板蓋。
4. 選擇合適的給定值微調(diào)旋鈕
5. 轉(zhuǎn)動(dòng)旋鈕：
* 逆時(shí)針方向，降低給定值 (降低設(shè)定的繼電器跳閘速度)。
* 順時(shí)針，提高給定值 (增加設(shè)定的繼電器跳閘速度)。
6. 緩慢地轉(zhuǎn)動(dòng)旋鈕以便不要過快的通過該目標(biāo)設(shè)定點(diǎn)；旋鈕有良好的分辨率；因此設(shè)定值較大的變化需要多次操作。
7. 在調(diào)整旋鈕時(shí)，聽繼電器是否z在給定值跳閘。 當(dāng)接觸跳閘時(shí)，你能聽到一下清楚的咔噠聲。 如果周圍的環(huán)境噪音不能清楚的聽到該聲響：使用替換方法中描述的歐姆表。
8. 微調(diào)調(diào)整：
* 在繼電器跳閘時(shí)，再次緩慢地反轉(zhuǎn)設(shè)定值旋鈕進(jìn)行調(diào)整直到繼電器跳閘。
* 再次，緩慢地轉(zhuǎn)動(dòng)旋鈕進(jìn)行調(diào)整直到繼電器跳閘。
9．對(duì)終端5(HI)和6(COM)再次接通。觀察極性。
10．對(duì)調(diào)整的其它設(shè)定點(diǎn)重復(fù)上述程序。
替換方法2：發(fā)動(dòng)機(jī)運(yùn)行時(shí)調(diào)整個(gè)別給定值
發(fā)動(dòng)機(jī)不強(qiáng)調(diào)非臨界的過速值；當(dāng)發(fā)動(dòng)機(jī)在非臨界速度運(yùn)行時(shí)，使用替換方法3調(diào)整設(shè)定點(diǎn)； 注意： 當(dāng)給定值達(dá)到時(shí)，無論是否連接繼電器，繼電器將引起發(fā)動(dòng)機(jī)關(guān)閉或者開動(dòng)。
臨界的過速通常是現(xiàn)有發(fā)動(dòng)機(jī)過速關(guān)閉；運(yùn)行
警告不要在過速條件下運(yùn)行；
當(dāng)發(fā)動(dòng)機(jī)在非臨界速度運(yùn)行時(shí)，使用替換方法3調(diào)整設(shè)定點(diǎn)；
發(fā)動(dòng)機(jī)的速度需要改變時(shí)。 如果你不能保證發(fā)動(dòng)機(jī)過速，使用替換的方法1。
1 已要求的速度運(yùn)轉(zhuǎn)發(fā)動(dòng)機(jī)；
* RPM指標(biāo)裝置/ 轉(zhuǎn)速表從SST-2000A-/H的比例輸出測(cè)量：
*或者在發(fā)動(dòng)機(jī)附近安裝一獨(dú)立的測(cè)量儀表。
2.等RPM 趨于穩(wěn)定。
3.當(dāng)RPM穩(wěn)定時(shí)，選擇合適的給定值整理旋鈕。
4. 遵循替換的方法1的程序： 1-10步驟。
替換方法3：在高噪音地區(qū)調(diào)整個(gè)別給定值
如果環(huán)境的高噪音無法聽到繼電器的咔噠聲：
1斷開線路：
* SST-2000A-/H的中心位置已經(jīng)調(diào)整的設(shè)定點(diǎn)繼電器；
*在相同的繼電器上的其它兩出點(diǎn)之中任何一個(gè)；
[標(biāo)出電線或者確定其位置；以便正確進(jìn)行連接]；
2. 把歐姆表和末端和該繼電器連接；并連結(jié)該繼電器的任何其它終端。 [如果調(diào)整繼電器1，把歐姆表和終端18 &17orl8&19 連結(jié)起來。 ]歐姆表將根據(jù)選擇的終端顯示短可和開啟狀態(tài)。
3. 按照方法1：1-10的調(diào)整繼電器；當(dāng)繼電器跳閘時(shí)，歐姆表顯示顯示短可和開啟狀態(tài)，與先前繼電器顯示的狀態(tài)相反。
4. 重新連接繼電器和接線。
5. 對(duì)其它調(diào)整的設(shè)定點(diǎn)重復(fù)上述程序
證實(shí)設(shè)定點(diǎn)數(shù)值
您可以在不運(yùn)行發(fā)電機(jī)的情況下， 觀察和調(diào)整設(shè)定值；
注：SST-2000A/H （無設(shè)定值）沒有設(shè)定值;
臨時(shí)跨接線不干擾任何繼電器的正常的操作。
4-20 mA比例輸出(終端9和10)不影響沒程序運(yùn)行。
程序運(yùn)行不影響14個(gè)Vdc脈沖輸出；
  1. 接線終端16連接有符合觀測(cè)需要的設(shè)定點(diǎn)(SST-2200A-/H 和SST-2400A/ H)：
設(shè)定點(diǎn)1：跨接線16-12
設(shè)定點(diǎn)2：跨接線16-13
設(shè)定點(diǎn)3：跨接線16-14
設(shè)定點(diǎn)4：跨接線16-15
2.當(dāng)您對(duì)兩個(gè)終端進(jìn)行跨接時(shí),0-1 mA輸出測(cè)量儀表在終端7 和8 斷開并且顯示設(shè)備RPM ( 頻率,比率,等等)數(shù)值。
3. 當(dāng)跨接線移除時(shí)，儀表對(duì)接回正常操作。
圖4-14在0-1 mA輸出測(cè)量儀上連接終端7和8，驗(yàn)證設(shè)定值并查看RPM ( 頻率,比率,等等)
(顯示 設(shè)定點(diǎn)1的驗(yàn)證程序.)
Adjusting Signal Sensitivity
Desensitizing Standard Inputs
Signal sensitivity is factory set to 25 mVrms (about 35 mV peak or 70 mV peak-to-peak) and satisfies most applications.
Fig. 4-12    The
signal sensitivity control is located under the A DIP switch.
FREQUENCY RANGE SWITCH
AFTER SETTING RANGE SWITCH "A", TRIM FOR 10.0V AT OPEN TERMINALS 8 5 7 AT FULL SCALE FREQUENCY.
5    A
4
3        C 2         I
1 f
SIGNAL
SENSITIVITY
Higher sensitivities can be more vulnerable to noise.
To raise sensitivity Turn the SIGNAL SENSITIVITY potentiometer (Fig. 4-12) clockwise. At full clockwise rotation, sensitivity is approximately 5 mVrms.
To lower sensitivity Turn the SIGNAL SENSITIVITY potentiometer counterclockwise. At full counterclockwise rotation, the sensitivity is approximately 100 mVrms.
Desensitizing Contact Closure
Jumper terminals 30 and 11 to desensitize the unit to about 1 Vrms. Signal Sensitivity pot setting does not affect this procedure.
Fig. 4-13    Jumper terminals 11 to 30 to desensitize the SST-2000A/H for contact closure input.
-™[_^  4   20  NC
SIGNAL [~     **  5   21  C
INPUT    |    6  METER CALIBRATE  22  NO
0-1 MA                    I      "*  7  ©  23  NC
METER OUTPUT I      +  8   24  C
PROPORTIONAL I      ^  9  o         o  25  NO
MAIN OUTPUT      |      +  10  ^                   v^y
1                                          2  26  NC
+14 VDC OUTPUT              +     
 11*   Zf  
SETPOINTI.^  12  ©  28  NO
SETPOINT2   4   
:       :  13   29  
:        :                         SETPOINT3  A A   *^n  JUMP
:   ADJUSTMENTS   FORC
:        :        •                SETPOINT4     JUMP
:       :       :       :  15   31  TODI
•:'•'•     JUMP
VERIFY SETPOINTS  16   32  RESE
 @  ®  ®  
RELAY NO. 2
RELAY NO. 3
RELAY NO. 4
Chapter 4 
Response Time
Response time is the time required for the proportional outputs to change from 10% to 90% of the maximum calibrated value for an instantaneous step change of the input frequency. Response time affects the transfer speed of the relays.
RELAY RESPONSE
Contact Dynalco if you need a different relay response time.
Standard response time is 150 milliseconds over all
standard input frequency ranges: 0-80 Hz full-scale to 0-20,000 Hz full-scale.
Response times below 80 Hz full-scale are proportionally slower.
While other response times can be provided, field modification is not recommended since damage might result that could void the product warranty.
Contact Dynalco if you need a different relay response time.
Adjusting Individual Set Points
Verify that the SST-2000A/H is calibrated to the correct full-scale frequency range (see page 22).
Tools required: Either a very thin-bladed screwdriver or a transformer alignment tool; signal generator (Dynalco's F-16 or equivalent).
Provide a signal source. Use an F-16 signal generator or similar zero-crossing signal source, or use the frequency signal generated by the magnetic pickup on the engine.
Apply a frequency signal to terminals 5 & 6. This frequency input should equal the target RPM value of the set point being adjusted.
RPMx No. of teeth or holes on flywheel
Setpoint Frequency (Hz) = 
60
For example: Calculate the set point frequency for a gear with 72 teeth rotating at 800 RPM.
Frequency (Hz) = — = 960 Hz (to terminals 5 & 6)
60
Alternate Method 1: Adjusting set points while the engine is not running
Use a signal generator to adjust individual set points when the engine is not operating and if you do not have an analog RPM meter.
1     Disconnect the wires to terminals 5 & 6. Mark or position the wires to assure correct replacement.
28
Calibrating the Speed Switch
2 Apply the calculated set point frequency to terminals 5 (HI) &
6 (COM).
3 Apply operating power to the SST-2000A/H. See lid of your
SST-2000A/H or spec sheet for power choices.
4 Select the appropriate set point trim pot.
5 Turn the pot:
* Counterclockwise to lower the set point value (reduce the speed at
which the set point relay will trip ).
* Clockwise to raise the set point value (increase the speed at which
the set point relay will trip).
6 Turn the pot slowly so as not to pass the target set point by a large
amount. The pot has fine resolution, so a large change in set point
value may take several turns.
7 While adjusting the pot, listen for the relay to trip at the set point.
You can hear a distinct click when the contacts transfer. If high
ambient noise makes it impossible to hear the relay click: use an
ohmmeter as described in Alternate Method 2, below.
8 Fine tune the adjustment:
* After the relay trips, slowly REVERSE the adjustment of the set
point pot until the relay again trips.
* Again, slowly turn the pot FORWARD until the relay trips.
9 Reattach the wires to terminals 5 (HI) & 6 (COM). Observe polarity.
10     Repeat the above procedure for other set points to be changed.
Alternate Method 2: Adjusting Individual Set Points While The Engine Is Operating
A non-critical overspeed value is one that will not stress the engine. Use Alternate Method 3 to adjust set points while the engine is operating at a non-critical speed. NOTE: when the set point value is reached the relay will cause an engine shutdown or activate whatever is connected to that relay.
A critical overspeed is typically the actual engine shutdown overspeed; running
WARNING: DO NOT RUN AT OVERSPEED
Use Alternate Method 3 to adjust set points while the engine is operating at NON-CRITICAL speed only.
the engine at this speed is generally not desired. Use Alternate Method 1 if you cannot guarantee engine overspeed.
1     Run the engine at the desired speed using:
29
Chapter 4
* an RPM indicator/tachometer operating from one of the
proportional outputs of the SST-2000A/H:
* an independent meter mounted elsewhere on or near the engine.
2 Wait for the RPM to stabilize.
3 When RPM is stable, select the appropriate set point trim pot.
4 Follow the procedure in Alternate Method 1: steps 1-10.
Alternate Method 3: Adjusting individual set points in high noise areas
If high ambient noise makes it impossible to hear the relay click:
1 Disconnect the wire from:
* the center post of the SST-2000A/H set point relay being
adjusted.
* either one of the other two contacts on the same relay.
[Mark the wires or position them so they can be correctly reattached.]
2 Connect an ohmmeter to the center terminal of this relay and to
either one of the other terminals of this relay. [If adjusting Relay 1,
connect the ohmmeter to terminals 18&17orl8&19.] The
ohmmeter will indicate either a short or an open condition
depending on which terminals are chosen.
3 Adjust the relay as outlined in Method 1: 1-10. When the relay trips,
the ohmmeter will show a short or an open, opposite to the
indication it had before the relay tripped.
4 Reattach the wires to the relays.
5 Repeat the above procedure for other set points to be changed.
30
Calibrating the Speed Switch
Verifying Set Point Values
The temporary jumper does not interfere with the normal operation of any relays.
The 4-20 mA proportional output (terminals 9 & 10) is NOT affected by this procedure.
The 14 Vdc pulsed output is not affected by this procedure.
 
You can view and adjust the set point values without having to run the engine. NOTE: The SST-2000A/H (no set points) does not have set points.
1 Jumper terminal 16 with the terminal that corresponds with the set
point you want to view (for SST-2200A/H and SST-2400A/H):
* Set point 1: jumper 16 to 12
* Set point 2: jumper 16 to 13
* Set point 3: jumper 16 to 14
* Set point 4: jumper 16 to 15
2 When you jumper the two terminals, the 0-1 mA output meter
connected to terminals 7 and 8 disconnects and displays the RPM
(frequency, rate, etc.) value at that set point.
3 When the jumpers are removed, the meter switches back to its
normal operation.
Fig. 4-14   Verify the set point values and view the RPM (frequency, rate, etc.) on the 0-1 mA output meter connected to terminals 7 & 8.
(Shown
is the procedure for verifying Set point 1.)
METER READS S.R1RPM
PROPORTIONAL MAIN OUTPUT
+14 VDC OUTPUT   7  ©
1 \   3
|              SETPOINT 1          ADJUSTMENTS
SETPOiNT 1 w  12*  
SETPOINT 2 ^  13  
;          ;   
:       :                       SETPOINT 3 „  14  
;         :         ;   
:       :       :               SETPQI.NT4.  15  
  16*  
VERIFY SETPOINTS   
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2013.3.6