SEQUENCER CONTROLLER
WITH OR WITHOUT
DIFFERENTIAL PRESSURE SWITCH
Technical notice
FI 72.0297.1016E
Page 12
RELAY OUTPUTS
1) K1relay: (general fault)
Relay supplied (contact between terminals located 11 and 14) if no electric fault or configuration, no DP
low alarm, no compressed air fault.
Relay cut (contact between terminals located 11 and 12) if presence of a fault or DP low alarm
2) K2 relay: (running response)
Relay supplied if sequencer in cycle and not in stop on image (contact between terminals located 21 and 24).
Relay cut if sequencer at stop (contact between terminals located 21 and 22)
3) K3 relay: (DP high alarm)
Relay supplied (contact between terminals located 31 and 34) if no DP high alarm.
Relay cut (contact between terminals located 31 and 32) if noDP high alarm.
INPUTS
1)
I1 input:
If no presence of DP card: DP external loop control or other
If presence of DP card: input for T2A time taking in account
2)
I2 input:
Input for "compressed air" control
3)
I3 input:
Input fan loop control or other
