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

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2. Alarm one is different from one standpoint. It has
the additional 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.
Note: Alarm set point can only be changed enabled on the
alarm setup menu, otherwise you can only view the set point.
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.
g. "LATCH" selects alarm to latching or non-latching (follows
input). If LATCHING is selected, alarm will remain on till
manually reset. Use SELECT key to view “YES” for latching