DDMC Analog Input Process Meter / Controller
Instruction Manual
27
Setting the Relay Operation
(
relay
)
This menu is used to set up the operation of the
relays.
•
During setup, the relays do not follow the input
and they will remain in the state found prior to
entering the Relay menu.
1. Relay action
a. Automatic reset only (non-latching)
b. Aut manual reset at any time
(non-latching)
c. Latching (manual reset only)
d. Latching with Clear (manual reset only
after alarm condition has cleared)
e. Pump alternation control (automatic
reset only)
f. Sampling (the relay is activated for a
user-specified time)
g. Off (relay state controlled by Interlock
feature)
2. Set point
3. Reset point
4. Fail-safe operation
a. On (enabled)
b. Off (disabled)
5. Time delay
a. On delay (0-999.9 seconds)
b. Off delay (0-999.9 seconds)
6. Relay action for loss (break) of 4-20 mA
input (ignore, on, off)
Setting the Relay Action
Operation of the relays is programmed in the
Action
menu. The relays may be set up for any of the
following modes of operation:
1. Automatic reset (non-latching)
2. Aut manual reset at any time (non-
latching)
3. Latching (manual reset only, at any time)
4. Latching with Clear (manual reset only after
alarm condition has cleared)
5. Pump alternation control (automatic reset
only)
6. Sampling (the relay is activated for a user-
specified time)
7. Off (relay state controlled by Interlock
feature)
The following graphic shows relay 1 action setup;
relay 2-8 are set up in a similar fashion.
