Woodward MRM4, Manual, Page: 28 / 460

Installation and Connection
Assembly Groups
In line with the customer’s requirement the devices are combined in a
modular way (in compliance with the order code). In each of the slots an
assembly-group may be integrated. In the following the terminal
assignment of the individual assembly-groups are shown. The exact
installation place of the individual modules can be learned from the
connection diagram fixed at the top of your device.
Housing B1
B1 housing – schematic diagram
Grounding
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]).
The devices are very sensitive to electro-static discharges.
Page 28 EN MRM4 01/11
X1
X2 X3
slot1 slot2 slot3
X100
X
10
1
X103