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Reference Manual
IP2030/RM, Rev AA
Section 4: Getting started
June 2014
Section 4: Getting started70
Understanding the relay status icons on the display
The relay status icons on the Full PV Display have the following meanings:
= Relay is energized
0 = Relay is de-energized
A = Alarm relay (see page 91 about alarms)
S = Sampler relay
T = Totalizing relay
How to reset the relay parameters only to factory defaults
To reset all relay parameters to their factory defaults, do the following:
1. Navigate to: SETUP / [CONTROLLER /] OUTPUT / RELAY / Reset RL param
2. If you wish to proceed, press the red (ENTER) button once.
(Otherwise, use the Esc button to exit to the RELAY menu).
3. Wait until the “Please wait…” message disappears.
4. Press the Esc button to exit to the RELAY menu.
Note
Setting the relays to their factory default state in this way does NOT reset any other
parameters to their default state.
How to set-up an on/off point control relay
Note
Relays are frozen while the MCU900 Series control unit is in Program mode, preventing
all relay operations apart from Totalizer and Sampler relays.
Relay outputs 1 to 4 can be programmed to be an On/Off Point control relay.
Menus:
SETUP / [CONTROLLER /] OUTPUT / RELAY / RELAY 1, / RELAY 2, etc.
Relay 1 (RL1)
When relay RL1 mode (P410) is Set Point:
relay RL1 is energized at P411 (on point) and de-energized at P412 (off point)
Relay 2 (RL2)
When relay RL2 mode (P420) is Set Point:
relay RL2 is energized at P421 (on point) and de-energized at P422 (off point)