Carlo Gavazzi UDM35/40 & USC - Manual (Page 15)

UDM 35/40 PANEL METER USER MANUAL
14
Hysteresis
The point at which an active alarm output must revert to for the alarm output to
turn off. Example: If an “up” alarm set point is “10.5”, and you want to have the
alarm reset at “10.3”, then the Hysteresis value to set in the program must be
“.2”, not 10.3. You need not be concerned about whether that value is to be in a
positive or negative direction. That is automatically configured when you select
the Down Alarm or Up Alarm.
When Hysteresis is displayed, use the key to toggle to the desired
numerical position. Using the keys, select the value for each position.
Then press to confirm and advance to the next step.
Off Delay
When Off Delay is displayed you may opt to choose a value of 0-255
seconds. Use the key to toggle to the desired position and select the correct
value with the keys. Press enter to confirm and advance to the next step.
On Delay
When On Delay is displayed, you may opt to choose a value of 0-
255 seconds by using the same procedure as Off Delay.
Relay Configuration
The set point alarm relay may be configured as “Normally Energized or Normally
De-Energized”. When is displayed, press either or key to make
your choice. Press to confirm and advance to the next step.
The configuration of Alarm type allows for selection of “OFF” or disabled, “DOWN
alarm”, “DOWN alarm with disable at power on”, “UP alarm”, “UP alarm w/latch”,
“DOWN alarm w/latch”. When the displays shows use the
keys to make your choice. Press to confirm and advance to the next step in
the sequence.