Emerson 7000 Commit to Xfer After TD Normal Fail see, Shed Load Options, In-Phase Monitor

2--7 Settings

Features Settings

¡

SETTINGS

Voltage DO PU

Frequency DO PU

©¢

SETTINGS

Features

£

Commit to Xfer After

TD Normal Fail: _

¤

SHED LOAD

Direction:

InPhase: TD: s

SHED LOAD

IsoLoadOnSrcFail yes

IsoLoadOnTest17 no

PHASE ROTATION

MONITOR

Enable:

Reference:

IN--PHASE
MONITOR
Enable:
Time Delay:	s

The controller (CP) Features settings can be displayed and changed from the key- pad. Some settings may require a password (if the controller is set up for one).

¡From any of the Status displays, press the Enter/Save Settings ￿ key to move to the Settings level of menus.

© Then press the right arrow " key to move to Setting Time Delays menu.

¢Press the right arrow " key again to move to Settings Features menu. £ Now press Enter/Save Settings ￿ key to move to the first Features display

¤You can press the right arrow "key to see the other Features menus (as shown below). An overview explanation of each setting is listed below.

7 Features Menus (last menu loops back to first)

Commit to Xfer After TD Normal Fail see page 2–1

This display shows the commit to transfer setting. It affects the transfer sequence as follows:

Yes — If Normal fails, CP continues transfer sequence to emergency even if Normal returns before Emergency becomes acceptable.

No — If Normal fails, CP cancels the transfer sequence to emergency if Normal returns before Emergency becomes acceptable.

Shed Load see page 2–1

This display shows status of 3 load shed parameters: Direction — from Emergency or from Normal

InPhase — yes means transfer delayed until sources are in phase TD — 3 second default time delay

Shed Load Options see page 2–1

This display appears only for 4ACTS, 4ADTS, 7ACTS, 7ACTB, 7ADTS, or 7ADTB. It determines switch position after the shed load transfer. IsoLoadOnSrcFail — determines switch position during a source failure. IsoLoadOnTest17 — deterines switch position during feature 17 activation.

Yes — Load is not connected to either source. (see wiring diagram No — Load is connected to the opposite source. for feature 17 desc.)

Phase Rotation Monitor see page 2–1

This display shows status of phase rotation monitor and desired reference phase rotation. It only appears if both sources are set to 3–phase sensing.

Enabled — Yes means phase rotation is considered as part of the source acceptability criteria for each source. If the phase rotation of the source does not match the reference phase rotation, that source is considered unacceptable. If phase rotation of the two sources is different, the load will be transferred to the source with the reference phase rotation.

Reference — phase rotation order: ABC or CBA (ABC is default)

In–Phase Monitor see page 2–1

This display appears only for 4ATS, 7ATS or 7ATB. This display shows status of in–phase monitor and in–phase time delay (1.5 seconds is default setting). Enabled — Yes means in–phase transfer is initiated when any of these conditions are met: Transfer Test (Feature 5) signal, connected source fails, retransfer to acceptable Normal occurs and Emergency source acceptable.

CTTS Bypass / Shed Load (not shown)see page 2–1

This display shows status of the closed–transition bypass options. FailSyncAutoBypass — Yes means if the fail to sync alarm occurs, the controller will bypass the closed–transition mode and will make a delayed–transiton transfer. The load disconnect time is set by the Bypass DT Delay parameter. Bypass InPhase — Yes means the inphase monitor is active during load transfer.