West Control Solutions N8840 User Manual
Page 3
KS90-1p
3
Content2
1. Mounting
5
2. Electrical connections
6
2.1 Connecting diagram . . . . . . . . . . . . . . . . . . . . . 6
2.2 Terminal connection . . . . . . . . . . . . . . . . . . . . . 7
3. Operation
11
3.1 Front view. . . . . . . . . . . . . . . . . . . . . . . . . . 11
3.2 Behaviour after power-on. . . . . . . . . . . . . . . . . . 12
3.3 Operating level . . . . . . . . . . . . . . . . . . . . . . . 12
3.4 Error list / Maintenance manager . . . . . . . . . . . . . . 13
3.5 Self-tuning . . . . . . . . . . . . . . . . . . . . . . . . . 15
3.5.1 Preparation for self-tuning . . . . . . . . . . . . . . . . . . 16
3.5.2 Optimization after start-up or at the set-point . . . . . . . . 16
3.5.3 Selecting the method ( ConF/ Cntr/ tunE). . . . . . . . 17
3.5.4 Self-tuning start . . . . . . . . . . . . . . . . . . . . . . . . 21
3.5.5 Self-tuning cancellation . . . . . . . . . . . . . . . . . . . 22
3.5.6 Acknowledgement procedures in case of unsuccessful self-tuning
22
3.5.7 Examples for self-tuning attempts . . . . . . . . . . . . 23
3.6 Manual self-tuning . . . . . . . . . . . . . . . . . . . . . 24
3.7 Second PID parameter set. . . . . . . . . . . . . . . . . . 25
3.8 Alarm handling . . . . . . . . . . . . . . . . . . . . . . . 26
3.9 Operating structure . . . . . . . . . . . . . . . . . . . . . 28
4. Configuration level
29
4.1
Configuration survey . . . . . . . . . . . . . . . . . 29
4.2
Adjustment: . . . . . . . . . . . . . . . . . . . . . . . 29
4.3 Configuration parameters . . . . . . . . . . . . . . . . . . 30
4.4 Set-point processing. . . . . . . . . . . . . . . . . . . . . 47
4.5 8840 profiler cooling functions . . . . . . . . . . . . . . . 48
4.5.1 Standard ( CyCl= 0 ) . . . . . . . . . . . . . . . . . . . . 48
4.5.2 Heating and cooling with constant period ( CyCl= 3 ) . . . 48
4.6 Configuration examples. . . . . . . . . . . . . . . . . . . 49
4.6.1 On-Off controller / Signaller (inverse) . . . . . . . . . . . . 49
4.6.2 2-point controller (inverse) . . . . . . . . . . . . . . . . . . 50
4.6.3 3-point controller (relay & relay) . . . . . . . . . . . . . . . 51
4.6.4 3-point stepping controller (relay & relay) . . . . . . . . . . 52
4.6.5 Continuous controller (inverse). . . . . . . . . . . . . . . . 53
4.6.6 ∆ - Y - Off controller / 2-point controller with pre-contact . 54