Configuration Manual

Version Document

001

ccess V4.X Configuration manual

17 (56) 2018-07-11

Block step signal if alam

 No

 Yes

Operation settings: Data & Settings > Temperature control > Heating (Heating 2)

Sequential control

Each output step has individually settable on and off values in percent of the

control signal. The number of steps is equal to the number of heater/chiller groups.

Minimum on and off times can be set, i.e. the minimum time the step has to be

inactive or active for a change to occur.

Binary control

The heater power outputs should be binary weighted (1:2:4:8 for heating). The

number of loads to be controlled is set. Thereafter the program will automatically

calculate the individual Activate levels. Switching differential and minimum on/off

times can be set. The number of heating steps will be: 2no. of groups-1. In binary

mode, the analogue output signal may be used to fill out between the steps. The

signal will go 0…100 % between the Activate of each step. The load connected to

the analogue signal should have the same size as the smallest of the binary

groups. In the example below there are 4 heater groups (1:1:2:4) and the total

number of heating steps is eight.

As alternative or complement to the above mentioned analogue control, heating

and cooling can be activated in steps. The internal signal is then used to activate

digital outputs for control of the heaters/chillers. Up to four heater outputs and

three cooler outputs can be configured. There are two possible modes:

3.2 Exchangers

Activate: Configuration > Function Configuration > Function Activation> Sequence Configure

type

Example

Order heating sequence:

1. ”Exchanger”

2. ”Exchanger extract”