Eaton 9EHD-33-40/20, User'S Installation And Operation Manual

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Wiring Access
Routing along the support
Wiring Access
Right
Front
figure 4-13 Interface Wiring access (without transfer)
CAUTION
If the external communication terminal block is not present, It is necessary to ensure the equipment is not under operation and
isolated the equipment completely from all input and output sources before working on the communication circuit.
Work on the communication circuit according to the below installation procedure:
1.Disconnect all input and output sources of power from this equipment.
2.Check for hazardous voltage between all terminals including the protective earth, ensure the equipment has no hazardous
voltage.
3.Remove the front cover plate that covered the parallel communication ports and the right panel, then working on the
communication circuit and routing as figure 4-13.
4.After working the circuit, the front cover plate that covered the parallel communication ports and the right panel of the UPS
must be installed and tightened.
Eaton 9EHD UPS (20-40 kVA, 380/400/415V) Installation and Operation Manual 33