4 Installation
4.1 Mechanical Installation
Manual
124
SIPART DR21
C73000-B7476-C143-08
Procedure / removing the front module
- Remove the mains module and any modules which may be plugged in.
- Turn the controller so that you are looking at the operating- and display front module from
the front.
- Carefully lever out the tag plate cover with a screwdriver at the cutout at the top and snap
the cover out of the bottom hinge points by bending slightly. Loosen the screw (captive)
T ilt the top of the front module at the head of the screw and pull it out angled slightly for-
wards.
- The scales can now be removed from the narrow side of the operating- and display front
module with a pair of tweezers.
4.1.2 Installing the controller
D Panel mounting
The SIPART DR21 controllers are installed either in single panel cutouts or in open tiers (di-
mensions, see figure 2-6, page 35).
Procedure:
- If necessary: Push the self-adhesive sealing ring for sealing the front frame/front panel
over the tube and stick to the back of the tube collar.
(to be ordered separately)
- Insert the controller into the panel cut-out or open tier from the front and fit the two
clamps provided to the controller unit from the rear so that they snap into the cut-outs in
the housing.
- Align the controller and do not tighten the locking screws too tight. The tightening range is
0to40mm.
* Ins tallation depth neces sary for
changing the main ci rcuit board
and modules
Relay module
Figure 4-6 Dimensions SIPART DR21, dimensions in mm
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