
6. Installation and Commissioning
GEM80-500 Series Controller
GEM80-500 Technical Manual (T2025En)
(08/04)
Page 6-12
polarising in the Hot Condition plug prevents insertion of a Cold Condition socket
carrying 110/230 V ac which would damage DC supply type controllers.
Proceed to wire up the supply and earth/ground connections as follows:
(a) The wires used for the Live, Neutral, DC+, DC- and earth connections should be
1.0 mm
2
, (18 AWG) and must be of a type to meet local installation regulations;
(b) Remove the cover on the rewireable IEC Socket Connector;
(c) Slide the supply wires through the cable gland and connect the live, neutral and
earth/ground wires to screw terminals marked L, N and E respectively. For DC
supply applications connect DC+ to terminal marked L and DC- to terminal
marked N;
(d) Fit the cable clamp to provide strain relief for the supply wires, and replace the
cover.
(e) Fit the IEC Socket Connector to the IEC Plug Connector which is mounted on the
front of the controller;
(f) Restrain the supply cable as close as possible to the controller to prevent the IEC
Socket Connector from being inadvertently disconnected;
(g) Connect the free ends of the supply wiring to a supply suitable for the controller
type (AC or DC);
(h) Connect the earth/ground lead to a dedicated Safety Earth point ensuring that this
is not confused with any Signal Ground bars which are present in the enclosure –
these Signal Ground bars may be disconnected from earth during commissioning.
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