User Manual DEV 5072
12
Copyright DEV Systemtechnik GmbH 2016-2017
network setup via serial interface is required (chapter 4.4.2.2), a serial connection
between a PC and the serial connector (
Com
) of the DEV 5072 is to be established
using a 1:1 cable; the configuration is described in chapter 4.4.1.
Please refer to the corresponding chapters for the functionality of the push button
(
Reset
, chapter 4.2.4) and of the LED (
Status
, chapter 5.3).
Before connecting AC power cables the DC output connections (to be realized
either as cables or as solid connection bars) are to be installed. Due to the high
output current of the DEV 5072 chassis, both sets of the DC output terminals
(
+A/-A
,
+B/-B
) are to be used for the DC wiring. Note that the maximum rating per
set of the DC output terminals is 380 A and that it is highly recommended that the
output load is distributed evenly among both DC output terminal sets!
The prepared DC output connections are to be attached using the provided
M6 nuts. It has to be ensured that the M6 nuts at the power supply chassis for
securing the DC output connections are tightened with a torque of 4.1…7.3 Nm
(36.3…64.6 lbf-in).
Note:
In combination with the DEV 5101, the instructions for the DC wiring are
different; please refer to the DEV 5101 user manual.
If using cables for the DC output connections, the number and the diameters of
the cables depend on the current to be supplied and on the length of the
cables. Make sure that an appropriate configuration with respect to number
and to diameter of the cables is installed.
For the cable cross section per polarity and per set of output terminals with an
assumed total maximum output current of 200 A, a minimum of 35 mm² cable
cross section is according to regulations.
The next table informs regarding the total maximum output current of the
chassis (i.e. assumed input voltage >170 V AC) with respect to the installed type
and number of power supply modules:
# Power Supplies
Voltage
1
2
3
4
12 V
200 A
380 A
570 A
760 A
24 V
104 A
198 A
297 A
395 A
48 V
52 A
98 A
147 A
196 A
For the connection of cables to the M6 threaded studs of the DC output
terminals double-hole lugs with 15 mm (~5/8") center distance and 90° cable
taps capable of at least AWG 2 (i.e. ~35 mm²) wires are recommended, e.g.
Burndy YA2CL2TC1490. As an alternative, a number of ring tongue terminals
with an inner diameter of 6 mm (0.24") and with a maximum outer diameter of
14 mm (0.55") can be used.
The DEV 5072 can be used to supply a positive DC voltage by connecting the
DC output connections in the fashion that the positive connections are running
to the positive DC output terminals (
+A
,
+B
). The negative DC output
connections are to be attached to the negative DC output terminals (
-A
,
-B
).
To obtain a negative DC voltage the polarity of the DC output connections has
to be reversed, i.e. the negative DC output connections are to be attached to
the positive DC output terminals (
+A
,
+B
) and the positive DC output
connections are running to the negative DC output terminals (
-A
,
-B
).
