5.2.5 Output 1

Output 1 may be fitted with a relay (form A), or SSR drive (logic) output depending on the order code. The function of the output may be selected from a list of options including heat or cool outputs for the control loop, or alarms or events which may be used for external indication.

 

P11

 

Select P11 to configure Output 1 (OP1).

 

 

The code can be checked against the label on the side of the controller.

nonE

Output disabled

 

Heat

Heat output

(factory default)

Output 1 controls the heating power demand. The sense is set to normal – the state of the output is shown in the table. This is the usual setting for control outputs.

 

OP1 State when heating

Relay

Energised

Logic

ON

 

CooL

Cool output

Output 1 controls the cooling demand. The sense is set to normal – the state of the output is shown in the table. This is the usual setting for control outputs.

 

OP1 State when cooling

Relay

Energised

Logic

ON

 

AL1

Alarm 1

Output 1 will operate as shown in the table if the alarm selected is active.

 

Alarm active

AL2

Alarm 2

Relay

Energised

AL3

Alarm 3

Logic

ON

 

AL1. i

Alarm 1 inverted.

Output 1 will operate as shown in the table if the selected alarm is active. This is the normal setting for alarms since if power to the controller fails an alarm state will be indicated by a powered external device.

 

Alarm active

AL2. i

Alarm 2 inverted

Relay

De-energised

AL3. i

Alarm 3 inverted

Logic

OFF

 

t.End

Timer end status

OP1 can be used to operate an external device to indicate when the timer has timed out. A relay is energised or a logic output is ON when the timer has timed out.

 

Timer Operation is described in section 4.11.

t.rUn

Timer run status

OP1 can be used to operate an external device to indicate when the timer is running. A relay is energised or a logic output is ON when the timer is running.