Flamenco Technical Manual Revision 6.0 - Tunstall.de
Flamenco Technical Manual Revision 6.0 - Tunstall.de
Flamenco Technical Manual Revision 6.0 - Tunstall.de
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Power supply unit, Or<strong>de</strong>r No. 77 3401 00<br />
2. Connection<br />
The internal connection terminals are provi<strong>de</strong>d as screw/plug-in clamps.<br />
2.1 Mains connection<br />
You have to ensure, that the mains cable is disconnected from the AC supply voltage during the<br />
following procedure:<br />
1. Release 4 screws of the left cover and remove the cover to the front.<br />
Now, the terminal connection clamps are accessible.<br />
2. Direct the mains cable through the cable duct into the housing and connect to the appropriate<br />
terminal posts as <strong>de</strong>signated in the unit.<br />
NOTE: To simplify this process, you may pull the input connector, connect the wires as shown and<br />
replace the plug in its socket.<br />
CAUTION ! Check for the correct and positive connection of the protective conductor.<br />
3. Secure the connecting cable against being pulled from the housing for example by fixing the<br />
installation cable with cable clamps.<br />
2.2 Output terminal clamps 24 V DC / 12.5 A<br />
The output voltage is generated via a primary pulse controller. This controller provi<strong>de</strong>s the output<br />
voltage of 24 V DC with 12.5 A current (for continuous operation consi<strong>de</strong>ring all tolerance criteria).<br />
When in the normal operating mo<strong>de</strong>, i.e. mains power supply, the electronic module monitors the<br />
output voltage. Starting at a load current level of more than approx. 12.5 A DC, the output voltage is<br />
reduced while keeping a constant current load.<br />
This is a self-correcting output voltage feature, as the output voltage will be reactivated, if the overload<br />
current drops below its trigger value of approx. 12.5 A. Further to this, the output voltage is protected<br />
by a 15 A flat fuse "F2".<br />
• The load shall be connected to the terminal clamps "+24V" and "0V" (provi<strong>de</strong>d 2 x).<br />
2.3 LEDs at the front face<br />
2.3.1 Green LED "Power"<br />
Green LED "Power“ is on.<br />
24 V voltage is available at the terminal clamps.<br />
2.3.2 Red LED "Output Failure Fuse F2"<br />
Red LED "Output Failure Fuse F2" and green<br />
LED “+24 V Power” are on.<br />
Output fuse failed or was removed. No voltage is<br />
available at the output clamps.<br />
2.4 Indicator clamps (3, 4, 5)<br />
The clamps 3, 4 and 5 are potential-free switching contacts for indicating the current operating state:<br />
Contact 3 – 4 closed.<br />
Green LED "Power“ is off.<br />
Contact 3 – 5 closed.<br />
Green LED "Power“ is on.<br />
No mains supply. No voltage available at the<br />
output clamps.<br />
24 V voltage is available at the terminal clamps.<br />
The indication "No mains power" may have several causes, e.g.:<br />
• No input voltage at the power supply unit.<br />
• When the load current exceeds approx. 12.5 A, the output current is reduced until the overload<br />
situation at the output clamps has been corrected.<br />
• Output fuse was removed or damaged. (Red LED "Output Failure Fuse F2“ is on)<br />
• "Mains Fuse F1“ missing or <strong>de</strong>fective.<br />
English - 2 © <strong>Tunstall</strong> GmbH, Orkotten 66, 48291 Telgte, Germany, www.tunstall.<strong>de</strong>, 00 8802 42, Rev. 3.1 (05/2008)<br />
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