24
TABLE 3-4 (Cont'd)
FUNCTION
.2 SETPOINT 2 ADJUST
.3 SETPOINT 1 LOCK
.4 CYCLE TIME/ON-OFF (OUTPUT 1)
Total length of time that the output will cycle on and off when the
temperature is within the proportional band. This can also be set
for ON/OFF Control. Note that cycle times of less than 10
seconds are not recommended for use when SP1 is a
mechanical relay. Option 6 should only be used with Analog
Outputs (4-20 mA DC or 0-10VDC).
If Function .19 (Setpoint 2 Operation Selection) is set to Option 1,
2, 3 or 7, deviation from setpoint 1 is in 1° steps, up to 127° (12.7°
in tenth degree resolution). The second setpoint tracks the first
setpoint. Therefore, if the first setpoint is changed, the second
setpoint changes along with it. If Function .19 is set to Option 4 or
5, then the actual temperature is set for alarm, independent of the
first setpoint (non-tracking).
(Not protected by the Parameter lock jumper). User must set up
Function .19 first then Function .2 (Refer to Function .19).
Function .19 Fn.19 Select Fn .2
Parameter Op. No. Range Comment
Deviation Alarm 1,2,3 0-127° (tracking)
Full scale alarm 4,5 0-* (non-tracking)
Cool strategy 7 ±127° (tracking)
*For full range, refer to Function .16 chart.
Allows the first setpoint to be "locked" to keep it from being
changed inadvertently. (Not protected by Parameter Lock jumper).
(Op# .(Fn#) Parameter/Comment
0.3 Unlocked
1.3 Locked
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