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3 Installation and Commissioning
Rack Mounting
312
1
For the
/
size housing shown in Figure 3-3, four covers and four fastening holes are
2
provided. On a device in full size housing there are six covers and six fastening holes,
as shown in Figure 3-4.
Two mounting brackets are necessary to install the 7UM62 in a rack. The order
number for the brackets is given in the Appendix, Sub-section A.1.
G
Loosely screw the two mounting brackets in the rack or cubicle with four screws.
G
Remove the four covers on the corners of the front cover of the device, on the
size housing also the 2 covers in the top and bottom center. Four or six elongated
holes in the mounting angle strips become accessible.
G
Fasten the device to the mounting brackets with four or six screws.
G
Replace the four or six covers.
G
Tighten the mounting brackets to the rack using eight screws.
G
Connect the ground on the rear plate of the device to the protective ground of the
panel. Use at least one M4 screw for the device ground. The cross-sectional area
of the ground wire must be greater than or equal to the cross-sectional area of any
other control conductor connected to the device. Furthermore, the cross-sectional
area of the ground wire must be at least AWG 13.
SIEMENS
TRIP
PICKUP
PICKUP L1
PICKUP L2
PICKUP L3
PICKUP GND
Device faulty
LED
Figure 3-3
Installing a 7UM621 (
Mounting Bracket
SIPROTEC
RUN
ERROR
7UM621
MAIN MENU
01/04
Annunciation
1
Measurement
2
MENU
ENTER
ESC
Event Log
F1
7
8
9
Operation. Pr
F2
4
5
6
Trip Log
F3
1
2
3
Reset
F4
0
+/-
Min/Max
Mounting Bracket
1
/
Size Housing) in a Rack or Cubicle
2
1
/
1
7UM62 Manual
C53000-G1176-C149-3
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