Logic Input Connections - Omega CN3440 SERIES User Manual

4.10 Logic Input Connections – Figs. 4.20 and 4.21
Each logic input can be programmed to perform one of a number of functions – see Section
3.10 of the Programming Guide .
5V
Logic switching
0V
30 31
32
30
Logic Input 1
Logic Input 2
31
Common
32
5V
Logic switching
0V
30 31 32
Logic Input 1
30
31
Logic Input 2
32 Common
Fig. 4.21 Additional Logic Input Functions for Profile Selection
Auto/ Local/Remote
Manual Set Point
Selection Selection
Automatic Local
Manual
Remote
or Dual
Automatic Local
Manual
Remote (Dual)
Note. Only one function may be
performed by each input at any one time.
Fig. 4.20 Standard Logic Input Functions
Hold
(Soak)
Start
Profile
P–Strt
Note. Only one function may be
performed by each input at any one time.
4 ELECTRICAL INSTALLATION...
Dual Set Point
Selection
Fixed Dual
Set Point 2
Fixed Dual
Set Point 1
Fixed Dual Set Point 2
Fixed Dual Set Point 1
* Profile
Reset
* Leading 'edge-triggered'
(minimum duration 200ms)
P–rSEt
Hold/ (Soak)
Profile Reset
Start Profile
Alarm
Acknowledgement
* Alarm
Acknowledge
* Leading 'edge-triggered'
(minimum duration 200ms)
Alarm Ack.
* Skip
Segment
P–SKIP
Skip Current Segment
15