HOI-653A機器人模塊
外部速度微調跳線必須連接到端子23和24，除非有可選的遙控器使用速度微調電位計。如果使用速度微調電位計。按照設備接線圖（圖1-2）所示，使用屏蔽線進行連接。將屏蔽連接到端子22。確保整個屏蔽具有連續性到電位計的距離，以及屏蔽與所有其他屏蔽絕緣導電表面。A 100? 電位計將提供±5%的速度調節。如果需要較少的調整，可以使用較小值的電位計。建議使用多匝型電位計。速度和相位匹配（SPM）同步器將SPM同步器（可選設備）導線連接到端子25（+）26（–）。使用屏蔽線，并將屏蔽連接到端子27。確保屏蔽在到SPM同步器的整個距離上具有連續性，但不將護罩連接到同步器上。屏蔽必須與所有其他導電表面。速度傳感器將轉速傳感裝置（如磁性傳感器）連接到端子28和29使用屏蔽線。將屏蔽連接到端子27。確保屏蔽在到速度傳感器的整個距離上具有連續性，并且護罩與所有其他導電表面絕緣。安裝檢查程序按照章所述完成安裝后，請執行以下操作開始第3章中的啟動調整前的檢查程序。
1.目視檢查
A、 檢查執行器和原動機之間的連桿是否存在：松散或束縛。請參閱相應的執行器手冊和伍德沃德手冊25070，電子調速器安裝指南，用于有關鏈接的其他信息。執行機構操縱桿應靠近但不在最小位置當燃料或蒸汽架處于最小位置時。如果執行機構操縱桿完全到達其最小位置之前關閉燃料或蒸汽時，控制器可能無法關閉
汽輪機停機，造成設備損壞或人員傷亡。B、 根據工廠接線圖（圖1-2）檢查接線是否正確。C、 檢查端子是否損壞和端子螺釘是否松動。、 檢查轉速傳感器有無可見損壞。如果傳感器是磁性的撿拾器，檢查齒輪和傳感器之間的間隙，以及必要時進行調整。間隙應介于0.25和1.00 mm之間（0.010和0.040英寸）。確保齒輪有直徑跳動小于0.50毫米（0.020英寸）。見伍德沃德手冊82510，電子用磁性拾取器和接近開關州長。
2.檢查接地情況
確保電源關閉。通過測量來自的電阻檢查接地端子11至底盤，以及端子15至11。電阻應為極大的如果獲得的電阻不是無窮大，則拆除連接從每個端子一次一個，直到電阻無窮大。檢查線路最后刪除以查找故障。
External Speed Trim
A jumper must be connected to terminals 23 and 24 unless an optional remote
Speed Trim potentiometer is used. If a Speed Trim potentiometer is used.
connect it as shown in the plant wiring diagram (Figure 1-2), using shielded wire.
Connect the shield to terminal 22. Make sure the shield has continuity the entire
distance to the potentiometer, and that the shield is insulated from all other
conducting surfaces. A 100 ? potentiometer will provide ±5% speed adjustment.
If less adjustment is desired, potentiometers of smaller values may be used.
Potentiometers of the multi-turn type are recommended.
Speed and Phase Matching (SPM) Synchronizer
Connect the SPM Synchronizer (optional equipment) wires to terminals 25 (+)
and 26 (–). Use shielded wire, and connect the shield to terminal 27. Make sure
the shield has continuity the entire distance to the SPM Synchronizer, but do not
connect the shield to the synchronizer. The shield must be insulated from all
other conducting surfaces.
Speed Sensor
Connect a speed-sensing device, such as a magnetic pickup, to terminals 28 and
29 using shielded wire. Connect the shield to terminal 27. making sure the shield
has continuity the entire distance to the speed sensor, and that the shield is
insulated from all other conducting surfaces. Installation Check-out Procedure
With the installation completed as described in this chapter, do the following
check-out procedure before beginning the start-up adjustments in Chapter 3.
1. Visual Inspection
A. Check the linkage between the actuator and the prime mover for
looseness or binding. Refer to the appropriate actuator manual and to
Woodward manual 25070, Electronic Governor Installation Guide, for
additional information on linkage.
The actuator lever should be near but not at the minimum position
when the fuel or steam rack is at the minimum position. If the
actuator lever gets to its minimum position before completely
shutting off fuel or steam, the control may not be able to shut the
turbine down, causing damage to equipment or injury or death.
B. Check for correct wiring per the plant wiring diagram (Figure 1-2).
C. Check for broken terminals and loose terminal screws.
D. Check the speed sensor for visible damage. If the sensor is a magnetic
pickup, check the clearance between the gear and the sensor, and
adjust if necessary. Clearance should be between 0.25 and 1.00 mm
(0.010 and 0.040 inch) at the closest point. Make sure the gear has
less than 0.50 mm (0.020 inch) diametric runout. See Woodward
manual 82510, Magnetic Pickups & Proximity Switches for Electronic
Governors.
2. Check for Grounds
Make sure power is off. Check for grounds by measuring the resistance from
terminal 11 to chassis, and from terminal 15 to 11. The resistance should be
infinite. If a resistance other than infinite is obtained, remove the connections
from each terminal one at a time until the resistance is infinite. Check the line that
was removed last to locate the fault.
