Parameter

Description

No.

 

P400

Lower range value

 

The mA set point for minimum PV in selected units

P401

Upper range value

 

The mA set point for maximum PV in selected units

P402

Alarm action

 

The is the value that the current will drive to on alarm

 

action. The alarm action is programable and is selected

 

from list (3.6/21mA/hold last reading).

P403

0-20mA/4-20mA

 

The mA output is selectable by user,

 

either 0 or 4 to 20mA

P410

Relay 1 Mode

 

Select Relay function from a list (Off, Set Point,Desludge

 

Alarm, Totaliser, Fault)

P411

Relay 1 On Point

 

The value of the variable (as set in relay mode parameter)

 

at which relay 1 turns on. Programmable by user

P412

Relay 1 Off Point

 

The value of the variable (as set in relay mode parameter)

 

at which relay 1 turns off.

P413

Relay 1 Min On Time

 

A programmable parameter for the minimum on time

 

of relay 1. This is to overcome slugs of clear liquor at

 

the start of desludge cycles

P414

Relay1 Max On Time

 

A programmable parameter for the maximum on time

 

of relay 1. This is to ensure, for example, a pump does

 

not continue to run due to a faulty signal from sensor.

P420

Relay 2 Mode

 

Select Relay function from a list (Off, Set Point,Desludge

 

Alarm, Totaliser, Fault)

P421

Relay 2 On Point

 

The value of the variable (as set in relay mode parameter)

 

at which relay 2 turns on. Programmable by user

P422

Relay 2 Off Point

 

The value of the variable (as set in relay mode parameter)

 

at which relay 2 turns off. Programmable by user

P423

Relay 2 Min On Time

 

A programmable parameter for the minimum on time

 

of relay 2. This is to overcome slugs of clear liquor at

 

the start of desludge cycles

P424

Relay 2 Max On Time

 

A programmable parameter for the maximum on time

 

of relay off. This is to ensure, for example, a pump does

 

not continue to run due to a faulty signal from sensor.

P415

Relay 1 Min Off Time

P425

Relay 2 Min Off Time

Min.

Max.

Default

value

value

Ex-Factory

-

-

0

-

-

auto

1

3

hold

1

2

4-20mA

1

5

set point

-

-

0

-

-

0

0:00

999.59

000:00

0:00

999.59

000:00

1

5

set point

-

-

0

-

-

0

0:00

999.59

000:00

0:00

999.59

000:00

-

-

-

-

-

-

IP258

35

Page 35
Image 35
Emerson MSM400 manual From list 3.6/21mA/hold last reading