Adaptive® JUNIOR – Technical and HMI User Guide
REV 1.04
14
4.3.2.
Fan Alarm Configuration Page
Up to four configurable alarms are available for each connected fan as detailed below. Fan speed alarms are only
available for 3 & 4 wire fans that have their tacho output connected. Up to three fans can be connected and the
alarms individually configured using the A, B or C fan selection buttons at the top right of the configuration page –
see Figure 10 below.
Note the alarms only operate if a fan is enabled on its configuration page irrespective of the alarm enables
configured on this page.
Figure 10 Example JUNIOR Fan Alarm configuration page
Alarm Settings
Alarm Type
Description / Cause
Current (mA)
Sets maximum fan current limit. Alarm trips when the measured current exceeds this value.
Voltage (V)
Sets maximum fan voltage limit. Alarm trips when the measured voltage exceeds this value.
Speed High (RPM)
Sets the upper rotational speed limit. Alarm trips if the fan speed rises above this value
2
.
Speed Low (RPM)
Sets the lower rotational speed limit. Alarm trips if the fan speed drops below this value
2
.
Alarm Enables
Result on limit exceeded
Enable
Sets the alarm state while limit is exceeded.
Relay
Activates the onboard relay for the duration that the alarm is present.
Shutdown
Switches output drive off until reset by control mode being switched to off or board power
cycled.
2
Only available for 3 and 4 wire fans providing a tacho output signal
Alarm Limits
Alarm Enables
Fan Selection
Alarm Type
