Lvd (low voltage disconnect), User’s guide, Network management card – APC Network Management Card AP9617 User Manual

Page 65

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USER’S GUIDE

network management card

63

LVD (Low Voltage Disconnect)

From

Device Manager

, type

1

to select

DC Power Plant

. Then type 6 to

select LVD.

At the prompt, enter the number of a Low Voltage Disconnect (LVD) on your
system to view the status (Opened or Closed) and to configure options for
that LVD. The following table uses LVD 1 as an example.

Menu Item (for LVD 1)

Description

1- LVD 1 Name

The name of the low voltage disconnect (LVD).

Maximum: 16 characters

2- LVD 1 Enable

Enabled

(the default) turns on the LVD. Use

Disabled

if no

LVD is installed.

3- LVD 1 Trip (V)

Voltage above this threshold trips (opens) the LVD.

Minimum: – 58.00 Volts
Maximum:–

30.00 Volts

4- LVD 1 Reset (V)

Voltage above this threshold resets (closes) the LVD.

Minimum: – 58.00 Volts
Maximum: – 30.00 Volts

5- LVD 1 Open Alarm

Alarm condition indicating that the LVD is tripped (Opened).

Allowed values: any standard alarm selection

a

.

6- LVD 1 Hardware
Alarm

Alarm condition indicating that a conflict exists between the
commanded position and sensed position of the LVD.

Allowed values: any standard alarm selection

a

.

7- Accept Changes

Use this option to save your changes.

a

Standard alarm selections:

Major

activates the major relay.

Minor

activates the minor relay.

Relay 1

through

Relay 6

activates the relay specified.

Ignore

ignores the alarm.

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