Lennox RGEN12, Руководство по установке

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XP-6514 4/09 27 Section 1 Installation
1.14 Voltage and Frequency
Adjustments
Hazardous voltage.
Can cause severe injury or death.
Operate the generator set only when
all guards and electrical enclosures
are in place.
Moving parts.
WARNING
Short circuits. Hazardous voltage/current can cause
severe injury or death. Short circuits can cause bodily injury
and/or equipment damage . Do not contact electrical
connections with tools or jewelry while making adjustments or
repairs. Remove all jewelry before servicing the equipment.
The controller’s adjustment mode allows adjustment of
the output voltage and frequency, if necessary. Have
adjustments performed by a Lennox dealer or service
technician.
Note: A digital multimeter that measures voltage and
frequency is required for these adjustments.
Use a digital multimeter to check the output voltage and
frequency. If output voltage or frequency is not within
specifications, use the ADC controller to adjust the
output voltage and engine speed (frequency) while the
generator set is running.
See Figure 1-32. The
flowcharts in Figure 1-34 through Figure 1-36 outline
the adjustment procedures.
Note: Be sure to save your changes as instructed in
Figure 1-36 before exiting configuration mode.
1
tp6514
1. Select button 2. Arrow buttons
2
Figure 1-32 Advanced Digital Control
Changes in voltage and speed adjustments are lost if
not saved before the generator set shuts down. The
generator set continues to run with the new settings until
it shuts down but then reverts to the previous settings at
the next startup if the changes have not been saved.
1.14.1 Voltage Adjustment
Note: Refer to the flowcharts in Figure 1-34 through
Figure 1-36 during the following procedure.
Voltage Adjustment Procedure
1. With the generator set off, connect a digital
multimeter to the output leads or an electrical outlet
on the load side of the generator set. Set the meter
to measure AC voltage.
2. Start the generator set by moving the generator set
master switch to the RUN position.
3. Use the ADC controller to adjust the voltage
(parameter 1P) until the output voltage reaches the
desired value.
Refer to the flowcharts in
Figure 1-34 through Figure 1-36 for instructions to
adjust the output voltage. See Figure 1-33 for the
approximate change in voltage per step.
Measured
Voltage, VAC
ADC
Display
Voltage Change per
Step, VAC
Coarse Fine
85--132 1P00--99 5 0.5
180--251 1P00--99 7 0.7
Figure 1-33 Voltage Adjustment (approximate)
4. Adjust the voltage stability (gain, parameter 2P) to
minimize light flicker.
5. Readjust the voltage, if necessary.
6. Set the multimeter to measure frequency.
7. Adjust the engine speed to the cut-in frequency of
57.5 Hz by adjusting the engine governor speed
(parameter 4P).
8. Adjust the volts/Hz (parameter 3P) until the voltage
level measured by the multimeter begins to drop.
When the volts/Hz is set correctly, the generator
(as load is applied) attempts to maintain normal
output until the engine speed drops below the
cut-in frequency set in step 7.