Tunstall FlamencoIP Technical Manual page 228

2. Connection
The internal connection terminals are provided as screw/plug-in clamps and cage clamp/plug-in
clamps.
2.1 Mains and battery connection
You have to ensure, that the mains cable is disconnected from the AC supply voltage during the
following procedure:
1. Release 4 screws for the left cover and remove the cover to the front.
Now, the terminal connection clamps for the mains connection are accessible.
2. Direct the mains connecting cable through the right cable duct into the housing and connect to the
mains terminal posts (3 pole) as designated in the housing.
CAUTION! Check for the correct and positive connection of the protective conductor.
3. Secure the mains connecting cable against being pulled from the housing for example by fixing
the installation cable with the screwed cable gland.
4. Ensure that the battery fuse FKS 20A is removed from the fuse holder located between the two
batteries in the Battery Set for UPS 60.
5. Direct the battery connecting cable through the left smaller cable duct into the housing and
connect to the battery terminal posts (2 pole) as designated in the housing
CAUTION! Check for the correct connection, orientation and locking with srews.
6. Secure the battery connecting cable against being pulled from the housing for example by fixing
the installation cable with the screwed cable gland.
7. Insert the battery fuse FKS 20A in the fuse holder located between the two batteries in the Battery
Set for UPS 60.
2.2 Output terminal clamps 24 V DC / 12.5 A
The output voltage is generated via a primary pulse controller. This controller provides the output
voltage of 24 V DC with 12.5 A current (for continuous operation considering all tolerance criteria).
When in mains operation, the electronic module monitors the output voltage. When the load current
exceeds approx. 12.5 A, the output voltage is reduced with keeping a constant current depending on
the value of resistance of the connected overload.
Further to this, the output current is limited by a 15 A flat fuse "F2". After the cause for the overload
has been eliminated the output voltage reverts to the must value 24 V. It is a self-reverting output
voltage.
•
The load shall be connected to the terminal clamps "+24V" and "0V" (provided 2 x).
2.3 Control terminal clamps x + y
The control terminal clamps "x" and "y" are used to prepare the unit for the uninterrupted power supply
(UPS mode).
2.3.1 Preparing the UPS function by placing a bridge contact between "x" and "y"
•
Connect the control terminal clamps "x" and "y" using the enclosed bridging contact or via a
potential-free 'make contact'. The current for the bridging contact is approx. 1 mA.
2.3.2 LED and indicator outputs 1 - 5
The five indicator outputs 1 – 5 at the 7-pole terminal block indicate the status of the unit via potential-
free relay contacts. The current load for these contacts is up to 125 V / 1.5 A / 60 VA.
© Tunstall GmbH, Orkotten 66, 48291 Telgte, Germany, www.tunstall.de, 00 8802 81, Rev. 7.0 (02/2017)
Product leaflets 03/2018, page 113
Power supply unit UPS 60, Order No. 77 3400 10
English - 3