300-R010-45G Datasheet, PDF (23/36 Pages) Magnetrol International, Inc. – Echotel® Model 300/301 Ultrasonic Non-Contact Transmitter For Level/Volume/Open Channel Flow

SOFTWARE CONFIGURATION cont.
I/O CONFIGURATION MENU cont.
Alarm Relay Configuration
Any of the relays can be configured as alarm relays. Each
alarm relay can be configured to be controlled by Level,
Volume (when in Volume & Level mode), or Flow (when in
the Flow & Level mode).
The alarm relays can be configured to have the same on and
off points, or different on and off points.
Display
I/O Config
to select
Relay Settings
to select
Select Relay
to select
Select Relay
1
Fault Relay (#1)
Disable
Enable/Disable
Disable
Controlled By
Level
Keystroke
Press ENT
Press ENT
Press ENT
Press ENT or
2, 3, or 4
Press
Press ENT
and
Press ENT
or
Relay On Point
xxxx units
Relay Off Point
xxxx units
Relay Action
DNRG < Setpoint
Press ENT
Press ENT
Press ENT
or
Relay On Delay
1 sec
Press ENT
or
Relay Off Delay
1 sec
Fault Mode
OFF on FAULT
Press ENT
or
Press ENT
or
Previous Menu
to select
Press ENT
I/O Configuration Menu (Alarm Relay Setting)
Comment and/or Additional Keystrokes
Enters the Relay Settings menu.
Allows entry into the Select Relay submenu.
Allows configuration of relay.
Press ENT to begin configuring relay #1 (if it was not used as a Fault relay) or
enter 2, 3, or 4 to configure the other relays.
Fault Relay (#1) will be displayed only if you are configuring relay #1. Press
to keep it disabled as a fault relay, and proceed to configure it as an alarm relay.
Enables the relay. After enabling the relay press ENT again to move the back
up to the top line, and then press to proceed to the next item.
If the unit is in the Level Only mode, this screen will not be shown. If the unit is
in the Volume & Level, or Flow & Level modes, the relay can be used to
control level, volume or flow. Pressing will set the relay to be controlled by
level. Press ENT, , ENT, and if controlling by volume or flow if desired.
Inserts a on the bottom line of the LCD which allows the value to be changed.
Enter the value for the on point and then press ENT and .
Inserts a on the bottom line of the LCD which allows the value to be changed.
Enter the value for the off point and then press ENT and .
This screen will only appear if the “Relay On” and “Relay Off” points are the
same. Select either “DNRG<Setpoint” to have the relay de-energize at a value
that is less than the set point (low level fail-safe), or “DNRG>Setpoint” to have
the relay de-energize at a value that is greater than the set point (high level fail-
safe).
A one-second delay on the relay is preset from the factory to prevent relay
chattering during turbulent process conditions. Press to keep this at one
second, or press ENT to enter a different (0-255 seconds) value.
Press to keep this at one second, or press ENT to enter a different (0-255
seconds) value.
If the unit detects one of the six fault conditions described in Fault Relay
Configuration (page 22), the alarm relays can either be configured to turn OFF
(de-energize) or to HOLD their current state. The factory default setting is OFF.
Reverts back to the Select Relay submenu.
Lead-Lag Relays
As shown in the General Programming Menu on page 14, all
four relays can be included in a lead-lag group for pump con-
trol. The factory default setting is OFF for the lead-lag mode.
To set-up relays in a lead-lag group, the lead-lag mode must
be changed to one of the following five selections: 1-2, 1-2-
3, 1-2-3-4, 2-3, or 2-3-4. If relay #1 is configured as a fault
relay (page 22), then 2-3 and 2-3-4 are the only two possible
relay groupings for lead-lag control of pumps. If relay #1 is
not configured as a fault relay, then the lead-lag group selec-
tions are 1-2, 1-2-3, or 1-2-3-4.
When configuring the lead-lag mode you will see the follow-
ing warning message: No Alarm Relays in LeadLag Group.
This message means that any relays that are included in the
lead-lag group must have different on and off points. The
software does not allow any individual relays in the lead-lag
group to have the same on and off points. See Figure 16 on
the next page for further explanation.
23