Connecting the power supply
Note | ||
 | Damage to the EK1000 possible! The EK1000 may be damaged during wiring.
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An external voltage source providing a 24 V DC voltage (-15 % / +20 %) is required for the power supply terminal.
The power supply terminal must supply 4 A at 24 V to ensure operation of the EK1000 in all cases.
The cabling of the EK1000 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 basic CPU module 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.
Connection example
No. | Description |
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1 | The upper spring terminals labeled "24 V" and "0 V" supply the EK1000 and the terminal bus (data transmission via K- or E-bus) with voltage. |
2 | The spring terminals labeled "+", "-" and "PE" supply the Bus Terminals with voltage via the power contacts and the sensors or actuators connected to the Bus Terminals. |
Open and close spring terminals
The leads of an external voltage source are connected to spring terminals on the power supply. Connect the lines as follows::
Cable cross section | 0,5 ... 2,5 mm2 | AWG 20 .. AWG 14 |
Stripping length | 8 ... 9 mm | 0.33 inch |
The voltage source has been connected to the power supply unit successfully when the two upper power supply terminal LEDs light up in green. |
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Note | ||
| Damage of device possible while interrupting / switching off the power supply To switch off the EK1000, do not disconnect the ground (0 V), because otherwise current may continue to flow via the shielding, depending on the device, and damage the EK1000 or peripheral devices.
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