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Installing the IMA-x1000
4.
Installing the IMA-x1000
4.1
General safety instructions
WARNING
Risk of electric shock
During operation high voltages
► Always disconnect the Power Supply Unit from
any AC and DC supply voltages, and wait mini-
mum 1 minute before you start working on it.
► When connecting the Power Supply Unit to an
AC input voltage, first connect the earth ground
wire to the terminal block, then connect N and L.
► When disconnecting the Power Supply Unit
from the AC input voltage, first disconnect the
wires N and L, then disconnect the earth ground
wire from the terminal block.
► Take care that no objects can fall into the Power
Supply Unit.
► Perform the installation in a dry environment so
that no moisture can get into the Power Supply
Unit.
CAUTION
High temperatures
During operation the Power Supply Unit gets very
hot.
► Let the Power Supply Unit cool down before
you start working on it.
This product is only for installation by professional install-
ers within other equipment and must not be operated as a
standalone product.
4.2
General installation requirements
The Power Supply Unit is a built-in component. For the
installation the following relevant standards have to be
considered:
●
EN 60950-1:2006 + A11:2009 + A1:2010 + A12:2011 +
A2:2013
●
IEC 60950-1:2005 + A1:2009 + A2:2013
●
CSA C22.2 No. 60950-1-07, 2nd Edition, 2011-12
●
UL 601-1:08
●
ANSI/AAMI ES 60601-1:2005
●
IEC 62368, 2nd edition
For creepage distances, clearances, thickness of insulation
between primary circuit and PE as well as thickness of insu-
lation between primary and secondary circuits the following
standards have to be considered:
●
EN 60950-1:2006 + A11:2009 + A1:2010 + A12:2011 +
A2:2013
●
IEC 60950-1:2005 + A1:2009 + A2:2013
●
CSA C22.2 No. 60950-1-07, 2nd Edition, 2011-12
●
UL 601-1:08
●
ANSI/AAMI ES 60601-1:2005
●
IEC 62368, 2nd edition
The output power shall not exceed the maximum allowed
output power. The value is printed on the unit label of the
Power Supply Unit.
12
4.3
Cooling requirements
To ensure sufficient fan cooling while the device is in opera-
tion, the clearance should be as large as possible on both
the fan side and the terminal block side surface. In Delta
qualification, simulation wall was placed and kept minimum
20 mm from fan side surface, see Fig. 20, p. 15.
The Power Supply Unit should not be placed on a low
thermal conductive surface, for example, plastics.
Refer to the data sheet for the maximum continuous rating
of the Power Supply Unit under consideration of its envi-
ronmental temperature.
4.4
Connecting wires to the PSU
AC/DC Input terminal block (J1)
Use flexible cable
Wire range: 12-18 AWG
Maximum screw torque: 1.3 Nm (11.5 lb-in)
For insulation stripping and terminal lug, see Fig. 17,
p. 12.
Main DC Output terminal block (J2)
Use flexible cable
Wire range: 4-12 AWG
Maximum screw torque: 1.3 Nm (11.5 lb-in)
For insulation stripping and terminal lug, see Fig. 17,
p. 12.
Diameter of lug for input should be suitable for M3.5 screws.
Diameter of lug for output should be suitable for M5 screws.
Lug for AC/DC Input terminal block (J1)
Lug for Main DC Output terminal block (J2)
Fig. 17: Preparing cables for connecting
4.5
Electromagnetic compatibility
The Power Supply Unit has to be installed inside an
grounded metal box.
The AC input cable should be twisted and laid as far away
as possible from the output cable.
All cables should be routed as close as possible to the
grounded metal box.
Add a shielding to the input cable or the output cable (or
ideally to both) if they are close to each other.
Ensure the input FG terminal is connected to ground.
IMA-x1000-xx-Series_Application_Note_V4.0_XX_EN_2019-08-19
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