BENTLY 330100-90-00监测器模块
检查执行器是否短路或接地
通过拆下接线端20和21.停止原动机。合上开关
端子18，将端子23短接至24。检查对于端子20和21处的18至22伏正向控制，0至1伏反向控制。
检查端子28处是否至少有1个VRM
以及最小值的至少5%额定速度和频率范围。初始速度设置过低
开始控制可能是错误的速度范围。
检查转速传感器频率与控制部件号。速度设置可能是：低于起动速度。控制应设置为额定速度。增加额定值速度设置为顺时针。
通知
如果调整额定速度设置
顺时针方向不产生正确的输出，返回额定速度设置至正常启动位置满逆时针方向的
低怠速设置可能：
设置得太低。调整低怠速电位计顺时针方向的最小燃油触点打开。看见中的“最小燃料接触”
第二章。
检查T 17。最小燃油接触必须为正常运行时关闭。检查20到从端子17（+）到15（-）的40 Vdc。
速度传感器信号未清除速度信号电路故障。
检查接线是否正确连接。检查正确安装的护罩。
速度传感器间隔不正确检查
端子28和29处的电压至少为1.0 Vac在起动期间。如果小于1.0VAC，磁性拾取器可能间隔太远从齿轮。确保没有金属捡拾器末端的碎屑。
如果不存在电压，磁传感器可能开路或短路。制作导线检查电阻与控制断开。应该是100至300Ω.
故障转速信号电路可能被禁用
通过连接端子16（或端子0 on高压控制）连接到端子18。
警告做好应急准备起动发动机时停机，涡轮机或其他类型的原动机防止失控或超速可能造成人身伤害，损失生命或财产损失。
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 Ω.
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.
