Emerson 48330 Manuel D’Utilisation

48 Chapter 5 Operating SCU

ACTURA Flex 48330

Power System User Manual

Alarm type

Remark

BLVD

Output voltage abnormal

AC power off

Multiple rectifiers alarm

Time for system maintenance (replace the fan)

Any rectifier comm interrupted

Any rectifier AC power off

Any rectifier over-temperature

Any rctifier faulty

Any rectifier in protection

Any rectifier fan faulty

Any AC derated rectifier

Any temperature derated rectifier

For example: To make dry contact No.3 act when battery route 1 is broken but AC

power is still on, the PLC should be configured like this:

A: battery route 1, with “status” set as “Alarm”.

B: AC power off, with “status” set as “No alarm”.

C: Dry contact No.3

*: “AND”.

5.5.7 Set the Alarm Names Through PLC Function

Connect the serial port of MC to the RS-232 port of SCU, then configure the alarm

types that correspond to the dry contact outputs through MC.

An 8 (row)

% 6 (column) logic matrix is used in configuring these 8 dry contacts.

Every row in the matrix corresponds to one dry contact. The setting of one dry

contact has 6 bytes.

Byte 0: The dry contact is disabled if byte 0 is set to 0, and enabled if byte0 is set to

Bytes 1, 3 and 5 are the SN of the 3 alarms respectively. The range of SN is 0-56,

see section “5.5.3 Alarm List” for details.

Bytes 2 and 4 define the logic relationship between 3 alarms. The setting of byte 2

or 4 is 0-3. If the setting is 0, the logic is “AND”; If the setting is “1”, the logic is

“NOT”; If the setting is “2”, the logic is “OR”; and if the setting is “3”, the logic is

“AND”.