FUTEK IPM52x (D520) Digital Display - Manual (Page 23)

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selection of "SAFE"(fail safe) selection.
The selection "SAFE" here controls
relays 1 through 3 for the fail safe
operation.
b. "CHAnEL" selects which channel alarm is being
assigned to. Use SELECT key to view choice of
channels. Use ENTER key to enter choice.
c. "rELAY" selects which relay (1 through 4) is being
programmed. Use SELECT key to view choices of
outputs. Use the ENTER key to enter choice.
NOTE: Relays 1 through 3 are optional and located
on the option/top board. Relay 4 is standard and
located on the main/bottom board.
d. "TYPE" selects what type of alarm. Use SELECT key
to view following choices. Use the ENTER key to
enter choice.
1. "ALAr HI" (alarm high) selects alarm to trigger
when input goes over programmed set point.
2. "ALAr LO" (alarm low) selects alarm to trigger
when input goes under programmed set point.
e. "SEt Pt" (set point) enter number at which alarm will
occur.
• Set point can also be programmed from the RUN
mode when an "F" key is assigned to display alarm.
If "F" key is held for @ 4 seconds, the display will
start flashing the right hand digit signifying the new
set point can be entered.
Note: The corresponding front panel alarm LED is
on when in alarm.
f. "HySt" (hysteresis/deadband) enter number. This
number is added to a low limit or subtracted from a
high limit before an alarm condition is cancel. It is
typically used to prevent alarm chatter. This is set under
Alarm # 1 for all Alarms.
g. "LatCH" selects alarm to latching or non-
latching(follows input). If LATCHING is selected,