Basler Electric DECS-400 - Manual (Page 133)

9369700990 Rev R 121
Installation
When not shipped as part of assembled equipment, DECS-400 Digital Excitation Control Systems are
delivered in sturdy cartons to prevent shipping damage. Upon receipt of a DECS-400, check the part
number against the requisition and packing list for agreement. Inspect for damage and, if there is
evidence of such, file a claim with the carrier and notify the Basler Electric regional sales office, your sales
representative, or a sales representative at Basler Electric.
If the unit is not installed immediately, store it in the original shipping package in a moisture- and dust-free
environment.
Mounting
Because the DECS-400 and Field Isolation Module are of solid-state design, they can be mounted at any
convenient angle in an environment where the temperature does not decrease below –40
°C (–40°F) or
exceed 60
°C (140°F).
DECS-400
The DECS-400 is supplied with an escutcheon plate for panel (or cubicle door) mounting. The escutcheon
plate allows the DECS-400 to be installed at one of two mounting depths. Overall dimensions for the
DECS-400 and escutcheon plate are shown in Figure 87. Figure 88 shows the panel cutting and drilling
dimensions for mounting a DECS-400 with the escutcheon plate.
Brackets are also available for mounting the DECS-400 in a 19-inch rack. Order part number 9365207030
(two brackets required).
An escutcheon plate is available for retrofitting a DECS-400 into an existing DECS-300 installation. Order
part number 9369707009.
Draw-Out Assembly Extraction and Installation
Mounting may be simplified by separating the draw-out assembly from the case. The draw-out assembly
is held in the case by two lever-style latches located on the front panel. Each latch has a captive Phillips
screw that is rotated clockwise to lock the latch in the closed position. Locking the latches in the closed
position precludes the latches from opening in the presence of excessive vibration or shock.
A latch is opened by rotating the locking screw counterclockwise to unlock the latch. Then, the latch lever
is pulled outward.
Once the case is mounted, the draw-out assembly can be returned to its case. Seat the draw-out
assembly fully in its case and close both latches by pressing each latch lever into the closed position.
Each latch should then be locked with its locking screw. Using a No. 1 Phillips screwdriver, press in on
the screw and rotate it clockwise one-quarter turn.
Field Isolation Module
The Field Isolation Module is intended for surface mounting and no panel cutout is required. Figure 89
shows the Field Isolation Module dimensions and hole drilling locations.
Isolation Power Transformer
In applications where redundant operating power is used (DECS-400 style XCXX only), ac operating
power must be applied to the DECS-400 through an isolation transformer. Basler Electric part number
BE31449001 is recommended. Figure 90 illustrates the dimensions and mounting hole locations of part
number BE31449001.
DECS-400 Installation