Chapter 7 Installation
P
max
1W
I
max
standard: 66mA@15V
optional: 41mA@24V
7.4.4.2 Output 2: Isolated switch contract (NO, CC)
Important note: The user must ensure that the current does not exceed 130mA via the
isolated switch contact.
Replacement circuit diagram for the isolated switch contact
I
max
130mA
U
max
32V
R
on
35
Ω
f
max
500Hz
7.4.4.3 Direct rechargeable battery or battery voltage output (V
batt
)
The rechargeable battery or battery voltage is supplied directly to the voltage output V
batt
protected
by a PTC (I
max
200mA). The voltage available at this output is therefore directly dependent on the
charge state of the rechargeable battery or battery pack.
Important note: Charging the rechargeable battery pack via V
batt
is not permissible. To
recharge the rechargeable battery pack, apply an external charging voltage (7...30VDC ) to V
in
(see "Connecting the sensors, actuators and power supply" on page 49) and ensure that the
battery type set in the device configuration (see "Device-specific settings" on page 100)
corresponds to the rechargeable battery pack that you are using.
7.4.5 Technical details regarding energy management
The device will work until 3,1V, if the myDatalogEASYplus is operated without an external charging
voltage (V
in
). It then switches to energy-saving mode in which only the charge controller is active. If
an external charging voltage (V
in
) is supplied in this mode, the accu pack can be charged up again.
Otherwise the myDatalogEASYplus remains in energy-saving mode until the accu pack is completely
discharged.
When an external charging voltage (V
in
) is used, the charge controller ensures that the accu pack is
charged. It is therefore necessary to select the type of accu used in the input screen of the device
configuration (see "Device-specific settings" on page 100). If a type of accu pack is selected that is
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57
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