nVent RAYCHEM Elexant 4010i/4020i User Manual
RAYCHEM-AR-H60624-40X0iOpsManual-EN-1905
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5.2.2 Alarm Status
The alarm status is indicated by one of the three different states:
No Alarms-
This icon is shown when there are no alarms. Touching this
icon navigates to the Alarm page.
New Alarms –
This icon shows the new alarm count and the entire screen
flashes to alert the user. Touching this icon navigates to the
Alarm page.
Acknowledge Alarms –
This icon shows that alarms are present. The symbol is Static
(not flashing) and is shown once the user has viewed the active
alarms and will continue to be shown until all alarms are cleared
and reset. Touching this icon navigates to the Alarm page.
Figure 41 - Alarm Status
5.2.3 Trace Status
Trace Status can be used to diagnose why the EHT is not behaving as expected. The possible values are
shown in the table below in order of increasing priority. In situations where more than one status criteria
are active, the high priority status takes precedence.
Precedence in
increasing order
Status
Description
1
Normal
Heat trace output is behaving according to the chosen control algorithm
2
Always On
The Always On control mode is in use.
3
Trace Test
Trace test is currently active. (See Section 5.10.4.6)
4
Always Off
The Always Off control mode is in use.
5
Load Shed Active
The load shedding feature is active. (See Section 5.6.5)
6
Load Shed Failsafe
Load shedding failsafe is active.
7
Force Off
The digital input is forcing the control output off. (See Section 5.6.7.4)
8
Force On
The digital input is forcing the control output on. (See Section 5.6.7.4)
9
Temp Limit Cut out
Either the high or low temperature limit cut out has shut the control
output. (See Section 5.7.2)
10
Switch Failure
The switch failure alarm is active, and the output is inhibited.
11
SSR Overcurrent
The SSR protection algorithm has detected load current in excess of the
SSR ratings.
12
Ground Fault CT
Failure
The ground fault detection circuitry has malfunctioned and the
controller is unable to determine whether a ground fault exists.
The output is inhibited.
13
Ground Fault Tripped
The ground fault exceeded its trip setpoint and the output is inhibited.
14
Start Up Delay
During the start-up period, the output is inhibited.
15
Lost Config
The internal memory of the controller is damaged, and its settings have
been lost. The unit should be returned to the factory.
16
Limiter Trip
The safety limiter has tripped. The output is inhibited.
Table 15 - Trace Status Values
