Nivus NivuLog Easy V3, Руководство пользователя

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Chapter 8 Installation
8.6.6.2 Switchable sensor supply VEXT
Note: The switchable sensor supply output is short-circuit-proof.
When using an extension module (e.g. optional GNSS receiver) this output is occupied by the same and is no
longer available for the supply of sensors.
U
out
3,3V
I
max
180mA
8.6.6.3 Isolated switch contact (NO, CC)
Important note: The user must ensure that the current on the isolated switch contact does not
exceed 130mA .
Equivalent circuit diagram for the isolated switch contact
I
max
130mA
U
max
32V
R
on
35Ω
f
max
1000Hz
8.6.7 Technical details about energy management
The device will work until 3,4V as intended, if the NivuLog Easy V3 is operated without an external supply or
charging voltage (V IN). The modem is deactivated from this threshold and the "UV MODEM LOCKOUT" log
entry is entered in the device log. This means that the connection is disconnected if the device is in "online"
mode or is logged in to the GSM network ("Interval & wakeup" mode). Once this threshold has been reached,
a connection establishment cannot be triggered manually via the solenoid switch (see "Solenoid switch" on
page 73) or automatically via the system. The remaining functions are not affected by this.
Only once the internal supply voltage falls below 2,9V , does the NivuLog Easy V3 switch to energy saving
mode in which only the charge control is active. In this case, the charge control tries to charge the
rechargeable battery up to 3,8V . The "UV_LOCKOUT" log entry is also entered in the device log when
activating energy saving mode. The rechargeable battery of the power supply unit can be charged up again if
the device is in energy saving mode and an external supply or charging voltage (V IN) is connected.
Otherwise the NivuLog Easy V3 remains in this energy saving mode until the rechargeable battery is
completely discharged.
Energy saving mode is terminated and all of the functions except for the communication with the Device to
Web server are resumed, once the rechargeable battery voltage exceeds 3,2V when recharging. The
modem continues to remain inactive until the rechargeable battery voltage exceeds 3,5V . Only then can a
GSM connection be established again and the device resumes normal operation.
NivuLog Easy V3 - Rev. 03 as of 24.10.2018 61 of 141