Chapter 4 ________________________________________________________________ Operation
VAISALA ______________________________________________________________________ 125
by using the arrow buttons. Select REMOVE if you want to
remove the setpoint.
7. Select Hysteresis Press SET. Set the hysteresis by using the arrow
buttons. Press OK.
8. Select Relay enable, press ON/OFF to enable/disable the relay.
RSEL
Use the serial line to select the quantity, setpoints and hysteresis or
enable/disable the relay outputs. Enter the RSEL command.
RSEL [q1 q2 q3 q4]
where
q1
= quantity for the relay 1 or Fault/Online
q2
= quantity for the relay 2 or Fault/Online
q3
= quantity for the relay 3 or Fault/Online
q4
quantity for the relay 4 or Fault/Online
Factory setting: all relays disabled.
Use the quantity abbreviations presented above. See Table 3 on page 19
and Table 4 on page 20.
Example of window limit switch (upper and lower setpoints for control
parameter): Selecting relay 1 to follow dewpoint/frost point temperature
measurement and relay 2 to follow temperature measurement. Two relay
setpoints are set for both relays.
>rsel tdf t
Rel1 Tdf above: - ? -10
Rel1 Tdf below: - ? -30
Rel1 Tdf hyst : 0.00 'C ? 5
Rel1 Tdf enabl: OFF ? on
Rel2 T above: - ? 30
Rel2 T below: - ? 20
Rel2 T hyst : 0.00 'C ? 1
Rel2 T enabl: OFF ? on
>
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