7.5 External OV-programming
NOTE
The regulation board is delivered with a short circuit jumper BR301, located close to the relay. In
this way it is also possible in ‘‘EXTERNAL’’ mode to adjust OV internaly. For external OV
programming the jumper BR301 must be removed.
The auxiliary programming voltage is connected as following :
minus pole to TB 4-14, plus pole to TB 4-5. When the EXTERNAL switch is pushed and the
EXTERNAL mode active, the yellow LED indicator illuminates.
The programming voltage may have values between 0 and + 12V.
The OV threshold results in a linear and proportinal manner from the programming voltage
(0....120%). Load for the auxiliary source is 250µA.
7.6
If only one output parameter is to be programmed, it is possible to adjust the non-programmed
parameter to the maximum value. In order to achieve this, the non-programmed input (TB4-15
or TB4-6) is connected with the 10V REF output (TB3-4). The 10V REF auxiliary voltage may be
loaded to max 15mA and is shortcircuit proof.
7.7 Remote ON/OFF
The power supply can be switched on and off using a relay contact or a logic signal. Contact will
be established between TB 3-6 and TB 3-14 and loaded with 5mA.
The logic signal is high-active and should have a high level between 3.5 and 15 V and a low
level under 0.8V. Load of the auxiliary signal is about 10KOhm. The connection of the logic
signal is between TB4-14 (GND) and TB4-10 (active).
NOTE:
The power switch must be ON
Argos 1200
Page 10 von 16 ISSUE 07/05
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