American Power Conversion MX06 50 System Management, Control Functions, Alarm Functions, Displays

4.2. System Management

A single plug-in circuit card provides the control, display and user interface functions for the MX06. Features include the following:

Control Functions

a)The Control Module is “hot-pluggable”.

b)The plant voltage can be adjusted through the use of a front panel accessible potentiometer. The power plant will operate without the Control Module at a factory pre- set voltage of approximately 54.5 VDC.

c)Automatic temperature compensation is available when a temperature probe is plugged into the rear panel.

d)Motorized circuit breaker control, allowing for battery disconnect and reconnect at specific voltage levels.

Alarm Functions

Rectifier and plant discrete alarm points are monitored along with the plant voltage:

e)Rectifier input healthy

f)Rectifier output healthy (1-of-N, 2-of-N)

g)GMT fuse trip

h)Battery breaker trip

i)Voltage level: High voltage, low voltage, very low voltage.

j)User-defined alarm inputs

Displays

Front panel LEDs provide the following indications:

k)VOLTAGE GOOD (Green): Output voltage between the low voltage and high voltage thresholds (50V dc to 57V dc).

l)MAJOR (Red): Major alarm condition

m)MINOR (Yellow): Minor alarm condition

n)LOW V (Yellow): Low Voltage (50V dc)

o)VERY LOW V (Red): Very Low Voltage. Imminent disconnect of battery if LVD in use (44V dc)

User Outputs

Alarm outputs, Form C relay contacts:

p)Major Alarm

q)Minor Alarm

r)Very Low Voltage Alarm

s)Motorized Relay control connections: Used for battery over current disconnect and battery low voltage disconnect.

MX06 Power Plant User’s Manual Page 18