Sens NRG24-20 Spezifikationen PDF herunterladen (Seite 27)

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S-1444h (4/08) Page 2 of 10

Operator panel

The operator panel provides the user with a complete

package of easy to view and use information. It includes

an enhanced graphical operator panel that allows the user

to view up to 9 lines of information, as well as graphical

displays of system data. Connections to the operator

panel are sealed, locking plug interfaces for reliable,

vibration-resistant interconnection to the generator set

wiring harness.

Control switches and functions

Off/manual/auto mode control switch - The not in

auto lamp will flash when the control is in the manual or off

mode. In the auto mode, the generator set can be started

using the exercise push-button or with a start signal from a

remote device, such as automatic transfer switches.

Manual run/stop control switch and indicating

LED - When the mode control switch is in the manual

position and the manual run/stop switch is pressed, the

generator set will start, bypassing all time delay starts.

(Time delay idle can also be bypassed with another control

action.) If the generator set is running in the manual mode,

pressing the run/stop switch will cause the generator set to

shut down. An LED (light emitting diode) lamp adjacent to

the switch will light to indicate the generator set is in

manual mode.

Exercise control switch and indicating LED - When

the mode control switch is in the auto position the exercise

control switch is used to complete a pre-programmed

exercise sequence. All exercise functions are disabled

when an emergency start command is received by the

control. An LED lamp adjacent to the switch will light to

indicate the generator set is in exercise mode.

Panel lamp/lamp test control switch.

Fault acknowledge/reset switch - The control

includes a fault acknowledge function to allow the operator

to reset the fault condition. If the fault condition is not

corrected, the fault will reappear, but will not be logged as

a separate event. Multiple faults can be logged and

displayed at one time.

Emergency stop control switch.

Operator adjustments - The control includes provisions

for many set up and adjustment functions via raise/lower

switches on the operator panel. Functions that can be

adjusted by the operator include:

- Time delay start (0-300 seconds)

- Time delay stop (0-600 seconds)

- Alternator voltage (+

5%)

- Alternator frequency (+

3 Hz)

The operator panel can be configured to require an access

code prior to adjusting these values. A second access

code is used to protect the control from unauthorized

service level adjustments. Voltage and frequency

adjustments are disabled during operation in parallel with a

system bus to prevent inadvertent misadjustment of the

paralleling load sharing functions.

Analog AC metering panel

The PowerCommand control is equipped with an analog

AC metering panel that simultaneously displays 3-phase

line-to-line AC volts and current, kW, power factor and

frequency.

The meter panel is composed of a series of LEDs

configured in bar graphs for each function. The LEDs are

color coded with green indicating normal range values,

amber for warning levels and red for shutdown conditions.

Scales for each function are in % of nominal rated values.

Graphical display panel

The PowerCommand control is provided with a graphical

display capable of displaying up to 9 lines of data with

approximately 27 characters per line. The graphical

display is accompanied by a set of six tactile-feel

membrane switches that are used by the operator to

navigate through control menus and to make control

adjustments. Display is configurable for multiple

languages. It is configurable for units of measurement.

The display incorporates three levels of operation and

adjustability. All data on the control can be viewed by

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