PULSAR MEASUREMENT
91
Control
P210, 220, 230, 240, 250 = 3 (Control)
When a relay is being set up as a
control
relay, the
second parameter
that
will be displayed in the menu determines its
function.
P211, 221, 231, 241, 251
–
Relay Function
This function allows the relay to be assigned to specific
control
functions
(other than pumps and alarms) several of these functions work in relation to
time.
This can be used to activate devices based on elapsed time or running
cycles, such as a timed rake control to keep a ram lubricated if idle for long
periods, or flush valve operation.
PUMP DUTY
DESCRIPTION
0 = Off (Default)
Relay is always de-energised
1 = Time
Relay will
energise
“
ON
” after the
Cycle time
that is set
in Relay
Setpoint 2
(P2
1
4, 2
2
4, 2
3
4, 2
4
4, 2
5
4). And
turns “
OFF
”,
de-energises
, after the
On-Time Period
that is set in Relay
Setpoint 1
(P2
1
3, 2
2
3, 2
3
3, 2
4
3, 2
5
3)
2 = Step Time
Step Time Control allows relays to be used to control a
device, such as a motorised valve or gate, in order to
maintain the level within two predetermined points.
Relays will
energise
“
ON
” when Step Time condition is
in effect and
de-energises
“
OFF
” when Step Time
goes
off. One relay will be required to control an increase in
level, (‘open’ the device) and a second relay is required
to control a decrease in lev
el, (‘close’ the device).
Alarm
ID
(P2
1
2, 2
2
2, 2
3
2, 2
4
2, 2
5
2) is used to assign the relay
to control either the
open
or
close
condition. Step Time
Control relay requires three setpoints. The first set point
(P2
1
3, 2
2
3, 2
3
3, 2
4
3, 2
5
3) determines the
level
, at
which the relay is to be activated, (N.B. level setpoint for
open
relay,
increase
the level, must be
lower than
the
setpoint for the
close
relay,
decrease
the level). The
relay will
energise
“
ON
” after the
Limit time
that is set
in Relay
Setpoint 3
(P2
1
5, 2
2
5, 2
3
5, 2
4
5, 2
5
5). And
turns “
OFF
”,
de-energises
, after the
Drive Period
that
is set in Relay
Setpoint 2
(P2
1
4, 2
2
4, 2
3
4, 2
4
4, 2
5
4).
