Pulsar FlowCERT LITE, Instruction Manual

Page: 87 / 150

Page
79
Pumps
When P210, 220, 230, 240, 250 = 2 (Pump)
When a relay is being used for a pump function, the second parameter
determines the pump duty that will be used to determine the operating
cycle.
P211, P221, P231, P241, P251 - Relay Function,
This parameter defines which pump duty the relay should respond to as
follows.
Pump Duty Description
0= Off (Default) Relay is always de-energised.
1= Fixed duty assist All pumps are used to assist each other
(run at the same time) and each pump
has its own setpoints. (P2
1 3, 2 2 3, 2 3 3,
2 4 3, 2 5 3 & P2 1 4, 2 2 4, 2 3 4, 2 4 4, 2 5 4).
2= Fixed duty backup
If a pump fails to meet the demand (due
to malfunction, intake blockage etc.),
then it is stopped and another pump shall
take over. Each pump has its own
setpoints. (P2
1 3, 2 2 3, 2 3 3, 2 4 3, 2 5 3 &
P2 1 4, 2 2 4, 2 3 4, 2 4 4, 2 5 4).
3= Alternate duty assist All pumps are used to assist each other
(run at the same time). Each pump has
its own setpoints, (P2
1 3, 2 2 3, 2 3 3, 2 4 3,
2 5 3 & P2 1 4, 2 2 4, 2 3 4, 2 4 4, 2 5 4) but
each time all pumps have stopped, the
setpoints are sequentially rotated
between the pumps to ensure equal
pump use.
4= Alternate duty backup
If a pump fails to meet the demand (due
to malfunction, intake blockage etc.),
then it is stopped and another pump shall
take over. Each pump has its own
setpoints, (P2
1 3, 2 2 3, 2 3 3, 2 4 3, 2 5 3 &
P2 1 4, 2 2 4, 2 3 4, 2 4 4, 2 5 4) but each time
all pumps have stopped, then the
setpoints are sequentially rotated
between the pumps to ensure equal
pump use.