Despatch LAC2-12-5 - Manual (Page 43)

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Relay Outputs Page (optional)
The Relay Outputs Page configures the four alarm/event outputs. Each output has a
dedicated indicator light and can be configured as a temperature alarm, profile event, or
end of cycle output. Temperature alarms can be of type process high, process low,
deviation high, deviation low, or deviation band.
To access the Relay Page, enter the Setup Mode (see description earlier in this
manual). Press the Page key until Relay is displayed. Press the Select key until the
desired relay output is selected. Press the Menu key. Each parameter can be changed
by pressing the Menu key until the desired parameter is displayed, and then pressing
the
keys to change the value. To configure a specific relay, press the Select key
until the desired relay appears.
NOTE: If Relay 0 appears, then no relays are installed (see relay kit assembly p.n.
144562).
Menu Item Display Description Range
Type of relay Relay 1
RelayType Set function of relay Off, Alarm, Cycl, Ev1 to Ev4
Action of relay Relay 1
RelayAction
Set coil and contact state of
relay NDE, NE, NDEL, NEL*****
Type of
alarm* Relay 1
AlarmType Set alarm type for relay High, Low, Plus, Minus, Band
Alarm
setpoint* Relay 1 AlmHi/Lo
SP Setpoint for alarm -73°C to 760°C (-100°F to
1400°F)
Alarm
deviation* Relay 1
AlmDevBand Deviation band for alarm 1 to 56°C (1 to 100°F)
Inhibit alarm* Relay 1
ALMInhibit Inhibits alarm until "safe"
condition is reached En or Dis
Type of
event** Relay 1
EventType Set event type for relay Time or Temp
Event
setpoint*** Relay 1 Event SP Setpoint for temperature event SPLoLim to SPUpLim****
(repeat for relay outputs 2-4, if available)
* appears only for alarm types
** appears only for time or temperature event types
*** appears only for temperature event types
Turning on the Alarm Inhibit function disables the alarm output on power up until the
process temperature has reached a non-alarming condition ("safe").
If the relay output has been configured as latching, the RESET key must be pressed to
return the output to the non-alarm state once the alarm condition has cleared.