ULTRA 3 INSTRUCTION MANUAL
122
Control
P210, 220, 230 = 3 (Control)
When a relay is being set as a control relay, the second parameter that will
be displayed in the menu determines its function.
P211, P221, P231 - Relay Function,
This function allows the relay to be assigned to specific control functions
and mainly work in relation to time.
Relay will energise “ON” after the Cycle time that is set in
Relay Setpoint 2 (P214, 224, 234). And turns “OFF”, de-
energises, after the On-Time Period that is set in Relay
Setpoint 1 (P213, 223, 233)
Step Time Control allows relays to be used to control a
device, such as a motorised valve or gate, 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 level, (‘close’ the
device). Alarm ID (P212, 222, 232) 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
(P213, 223, 233) 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 (P215, 225, 235).
And turns “OFF”, de-energises, after the Drive Period that is
set in Relay Setpoint 2 (P214, 224, 234).
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