Accessory Definitions (cont’d)

UMD

W

Universal Motor Load Disconnect Circuit: Auxiliary Contact opens 0-60 seconds prior to transfer in either direction, re-closes after transfer. Can be configured by end user for Pre-transfer, Post-transfer, or both.

Time Delay (S2) Source 2 Stable Timer. To delay trans- fer to Source 2. Adjustable 0-5 minutes in 1 second increments. Standard setting is 1 second. Adjust via SET menu (see page 18)

VI

Voltage Imbalance (Three Phase)

For a three phase source, this feature monitors phase voltage ratios based on a selected range within a selected time window. Should any phase fall below the selected lower window limit or exceed the selected higher window limit within the selected time frame, the controller initiates transfer to the other source.

Range: 5% to 20% of Nominal voltage,

10 to 30 seconds window, user adjustable. Resolution: 1% Increments

Minimum Differential: 2% between “Fail” and “Restore” settings.

Factory default: 10% “Fail”, 8% “Restore”, 30 Seconds. See CFG Menu page 17 to configure ON or OFF.

See SET Menu page 18 to set Percentage and time windows

YEN

Bypass Timers Key utilizing Keypad. When applicable, the system prompts the user to press a button to bypass

(T) or (W) Timers should the user so desires.

ZNET

Network Communications Interface Card

How to Set the System Clock

How to Set the System Clock

Set System Clock, time and date

·If the clock is not set, the display will show SET SYSTEM CLOCK on the second line of the S1 OK screen.

·The S1 OK screen will show time (hours and minutes) on the second line if the system clock has been set. (Date on third line)

Setting the System Clock

(Start from S1 OK screen)

1.Remove battery protective white plastic strip near P relay. *

2.Press MORE then press SET.

3.Press MORE and scroll to SET SYSTEM CLOCK using the MORE key.

4.Press SEL.

5.ENTER ACCESS CODE located on the white label on the back of the controller.

6.Press SEL.

7.Use the up and down keys to change the hour value.

8.Press SAVE (this will enter this value and move cursor to minutes).

9.Use the up and down keys to change the minutes.

10.Press SAVE (this will enter this value and move cursor to month).

11.Use the up and down key up to change the month.

12.Press SAVE (This will enter this value and complete the clock setting).

13.Use the up and down keys to change the date.

14.Press SAVE (this will enter this value and move cursor to year).

15.Use the up and down keys to change year.

16.Press SAVE (this will enter this value and compete the clock setting).

17.To edit settings, press SEL and repeat steps 6-16.

18.If the setting is satisfactory, press MORE (unit then returns to the SET menu then press BACK, then ESC.)

*Replacement battery part #K-4100

Battery will last 5 years and provides power to retain clock function only (Controller functions without battery).

GE Zenith Controls

ZBTS / ZBTSD Operation and Maintenance Manual (71R-4000A)

13

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GE ZBTSD manual How to Set the System Clock, Umd

ZBTS, ZBTSD specifications

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