Woodward MRM4, Manual

Page: 25 / 460

Installation and Connection
Three-Side-View - 8-Pushbutton Version
Dependent on the connection method of the SCADA system used the
needed space (depth) differs. If, for instance, a D-Sub-Plug is used, it has to
be added to the depth dimension.
The installation diagram shown in this section is exclusively valid for
devices with 8 pushbuttons at the front side of the HMI.
(INFO-, C-, OK-, CTRL-Pushbutton and 4 Softkeys (Pushbuttons)).
3-Side-View B1 Housing (Devices with 8 Softkeys)
The housing must be carefully grounded. Connect a ground cable (4 to 6
mm
2
/ AWG 12-10) / 1,7 Nm [15 In-lb]) to the housing, using the screw,
which is marked with the ground symbol (at the rear side of the device).
The power supply card needs a separate ground connection (2.5 mm
2
(AWG 14) at terminal X1 (0.56-0.79 Nm [5-7 In-lb]).
EN MRM4 01/11 Page 25