10
NT311 ETH
DISPLAY
The first display is dedicated to viewing of the measured values and the status of the doors (OPE-CLO).
The second display shows the monitored value: temperature (°C), humidity (rh), dust (dst), D1-D2 door inputs.
When the device is turned on or after a reset, the following always appear on the display: the model of the NT311 control
unit, VER "00" (firmware version)
,
ETH (Ethernet option).
Pressing the MODE key, the display modes can be set:
•
SCAN
: the control unit displays in scan (every 2 seconds) all the enabled parameters, disabled parameters (NO).
•
MAN
: manual reading of the enabled parameters using the up/down keys
, parameters disabled (NO).
NOTE:
in case of keyboard inactivity, after approximately 1 minute, the control unit will automatically set itself in
SCAN
mode
.
OPERATING PROGRAM CONTROL
To check the programmed protection levels, press the PRG key to enter the
VIS
program viewing mode.
Repeatedly pressing the PRG key, you can scroll through all the previously loaded values in sequence.
After 1 minute's keyboard inactivity, the programming display procedure is automatically abandoned.
To stop the display, press the ENT key.
NOTES ON SCAN AND MAN FUNCTIONS
During the SCAN and MAN modes, the operation of the NT311 can be displayed.
1) RUN cPU
:
This message appears when the unit is operating regularly without any system error.
2) cPU Err:
This message appears when the device detects an operating anomaly. By pressing the MODE key and selecting the
MAN mode, it is possible to view the error message encountered by the device.
Using the arrow
(UP) anomalies with the following priority will be visible:
a)
Ech Err
: This message appears when damage in the EEPROM memory is detected. Pressing Reset will
cancel the message and restore the original default parameters listed in the programming paragraph on
pages 14-15. Return the control unit to TECSYSTEM for repairs.
This message appears when it is found that one or more sensors are not working properly:
b) FLT-TEC
TPU sensor communication failure
c) FLT- °C
temperature sensor fault
d) FLT-rH
humidity sensor failure
e) FLT-dSt
dust sensor failure
In case of
Err
the FAULT relay will be de-energised (fail safe function active).
NOTES: In the case of ERR-TEC, TPU errors will not be visible as information from the sensors is missing. The next step is
the values. Pressing the key
(DOWN) will display the temperature.
LED TEST
c
It is advisable to regularly test the control unit LEDs.
For this operation, press the TEST key briefly; all the displays turn on for 2 seconds.
If one of the LEDS does not work, please return the control unit to TECSYSTEM for repair.
