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TECHNICAL BACKGROUND

Alarms for Mass battery chargers

The Mass battery chargers come standard with

alarms. The following alarm signals are indicated

on the Read Out Module on the front of the

Mass chargers via LED combinations:

In addition to these visual alarms,

all Mass battery chargers have a

potential-free relay contact.

Charger Status Interface (CSI) with

combined DC alarm, active as standard

Relay contact is activated

(no alarm) if:

n

Charger on (AC on input, switch turned to

‘on’

).

n

Temperature sensor within range.

n

DC voltage within range.

n

No short-circuit on output.

n

Voltage sense (cable loss

less

than 3 V).

Relay contact is disabled

(alarm situation) if:

n

Charger off (no AC on input, switch turned

to

‘off’

).

n

Temperature sensor out of range.

n

DC voltage out of range.

n

Short-circuit on output.

n

Voltage sense (cable loss

more

than 3 V).

n

General malfunction of the charger.

The DC alarm only works if the battery charger is

switched on. If you require a permanent DC alarm,

regardless of whether the charger has input voltage

and/or the charger is turned on, select the DC

Alarm setting.

Optional:

A separate CSI alarm is optionally available for the

Mass battery chargers and is placed in the connection box (if

you require multiple alarms).

Product code 21702000.

DC alarm, active after

programming DIP switch

Relay contact is activated

(no alarm) if:

n

DC voltage is within range

Relay contact is disabled

(alarm situation) if:

n

DC voltage is out of range

The DC alarm works whether or not

the charger has input voltage and/

or the charger is turned on or off.

Programming of the DIP switch is

marked with continuous monitoring

mode (ContMon).

Optional:

A separate DC alarm is available

for all Mass battery chargers and is placed

in the connection box (if you require multiple

alarms).

Product code 21702100.

Alarm options/settings:

Non continuous mode

C.S.I. /

DC alarm

Internal

alarm

contact

N.C. =

BATTERY VOLTAGE OUT OF RANGE

N.O. =

BATTERY VOLTAGE IN RANGE

COMMON

Continuous mode

DC high /

low alarm

N.C. =

CHARGER OFF, OR FAILURE

N.O. =

CHARGER ON, AND NON FAILURE

COMMON

1 + 6 = Voltage sense error

2 + 6 = Battery charger temperature too high

3 + 6 = Short circuit on output

4 + 6 = Battery voltage too high/low

5 + 6 = Battery temperature sensor error

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