BENTLY 330100-90-00監測器模塊
檢查執行器是否短路或接地
通過拆下接線端20和21.停止原動機。合上開關
端子18，將端子23短接至24。檢查對于端子20和21處的18至22伏正向控制，0至1伏反向控制。
檢查端子28處是否至少有1個VRM
以及最小值的至少5%額定速度和頻率范圍。初始速度設置過低
開始控制可能是錯誤的速度范圍。
檢查轉速傳感器頻率與控制部件號。速度設置可能是：低于起動速度。控制應設置為額定速度。增加額定值速度設置為順時針。
通知
如果調整額定速度設置
順時針方向不產生正確的輸出，返回額定速度設置至正常啟動位置滿逆時針方向的
低怠速設置可能：
設置得太低。調整低怠速電位計順時針方向的最小燃油觸點打開。看見中的“最小燃料接觸”
第二章。
檢查T 17。最小燃油接觸必須為正常運行時關閉。檢查20到從端子17（+）到15（-）的40 Vdc。
速度傳感器信號未清除速度信號電路故障。
檢查接線是否正確連接。檢查正確安裝的護罩。
速度傳感器間隔不正確檢查
端子28和29處的電壓至少為1.0 Vac在起動期間。如果小于1.0VAC，磁性拾取器可能間隔太遠從齒輪。確保沒有金屬撿拾器末端的碎屑。
如果不存在電壓，磁傳感器可能開路或短路。制作導線檢查電阻與控制斷開。應該是100至300?.
故障轉速信號電路可能被禁用
通過連接端子16（或端子0 on高壓控制）連接到端子18。
警告做好應急準備起動發動機時停機，渦輪機或其他類型的原動機防止失控或超速可能造成人身傷害，損失生命或財產損失。
Check for shorted or grounded actuator
leads by removing wires to terminals 20 and
21. Stop prime mover. Close the switch on
terminal 18, short terminal 23 to 24. Check
for 18 to 22 volts at terminals 20 and 21 for
forward acting controls, and 0 to 1 volt for
reverse acting controls.
Check for at least 1 Vrms at terminals 28
and 29, and at least 5% of the minimum
rated speed frequency range.
Speed setting too low on initial
start.
Control may be the wrong speed range.
Check speed sensor frequency versus
control part number. Speed setting may be
lower than cranking speed. Control should
be set for rated speed. Increase RATED
SPEED setting clockwise.
NOTICE
If adjusting RATED SPEED setting
clockwise does not produce the correct
output, return RATED SPEED setting to
normal start position—full
counterclockwise.
LOW IDLE SPEED setting may
be set too low.
Adjust LOW IDLE SPEED potentiometer
clockwise.
Minimum Fuel contact open. See
“Minimum Fuel Contact” in
Chapter 2.
Check T 17. Minimum-fuel contact must be
closed for normal operation. Check for 20 to
40 Vdc from terminal 17 (+) to 15 (–).
Speed sensor signal not clearing
failed speed signal circuit.
Check wiring for proper connection. Check
shields for proper installation.
Speed sensor not spaced properly—check
for at least 1.0 Vac at terminals 28 and 29
during cranking. If less that 1.0 Vac,
magnetic pickup may be spaced too far
from gear. Make sure there are no metal
chips on end of pickup.
If no voltage is present, magnetic pickup
may be open-circuited or shorted. Make
resistance check with the leads
disconnected from control. Should be about
100 to 300 ?.
Failed speed-signal circuit may be disabled
by connecting terminal 16 (or terminal 0 on
high voltage controls) to terminal 18.
WARNING
Be prepared to make an emergency
shutdown when starting the engine,
turbine, or other type of prime mover, to
protect against runaway or overspeed
with possible personal injury, loss of
life, or property damage.
