Power supply
An external power supply unit is required for the supply of power to the UPS, which provides a 24 V DC voltage (-15 % / +20 %). Connect the external power supply unit to the Uin input of the UPS.
The cabling of the UPS in the control cabinet must be done in accordance with the standard EN 60204-1:2006 PELV = Protective Extra Low Voltage:
- The "PE" and "0 V" conductors of the voltage source for a UPS must be on the same potential (connected in the control cabinet).
- Standard EN 60204-1:2006, section 6.4.1:b stipulates that one side of the circuit, or a point of the energy source for this circuit must be connected to the protective earth conductor system.
Selecting the appropriate power supply unit
Dimension the power supply unit according to the maximum power consumption of the connected devices including the current consumption when charging the UPS. For example, if a CX5140 with a power consumption of 23 W (= 0.96 A) is connected, the calculation looks as follows: 0.96 A + 0.76 A = 1.72 A. In this calculation example, at least a 1.72 A power supply unit is required for the CX5140.
If a C6030 (Intel® Core™ i7-7700 3.6 GHz) with a power consumption of 100 W (= 4.17 A) is connected, at least a 4.93 A power supply unit is required: 4.17 A + 0.76 A = 4.93 A.
Technical data | CU8130-0240 |
|---|---|
Current consumption during charging (without load) | max. 0.76 A |
Output current | max. 9 A |
Fuse (internal, input) | electronic 10 A |
Fuse (internal, output) | electronic, 10 A |
Connect UPS
Connect the devices to be supported to the U1out and U2out outputs. If the external 24 V DC input voltage is lost, the UPS takes over the supply of the devices connected to it thanks to its regulated and buffered 24 V DC output voltage. Use the two 9-pin connectors with push-in connection to wire the CU8130-0240 UPS.
Cable cross-section | 0.5 ... 1.5 mm2, | AWG 20 ... AWG 16, |
Strip length | 8 ... 9 mm | 0.33 inch |
Connect the UPS as follows:
- 1. Open a spring-loaded terminal by lightly pressing the push mechanism with a screwdriver or a mandrel.
- 2. The wire can now be inserted into the round terminal opening without any force.
- 3. The terminal closes automatically when the pressure is relieved.
- If the DIAG LED is green, the UPS is being supplied with power. If the DIAG LED is red, the input voltage Uin is not present.
Grounding
In case of mounting on a DIN rail, the UPS is grounded by grounding springs on its rear side. Ground the DIN rail in the control cabinet accordingly. A UPS with a mounting plate (optional) is grounded via the grounding screw.