TECHNICAL DOCUMENTATION
P
r
e
l
iminar
y
7
www.inpower-sys.com
1IPSE1A33-60
C
OMMISSIONING
S
UPPORT
8.
The IPS drivers are delivered to match the exact type of the IGBT-module used and according to the
application information given in your order, i.e. the settings of the drivers comply with the key features of
your system such as:
Inverter topology
•
Nominal DC-link voltage
•
Maximum collector current in nominal operation
•
Switching frequency
•
NOTE: You do not have to change any settings before you start your fi rst tests!
Preparation
Make sure all supplies are turned off and the DC-bus is fully discharged!
Connect the driver to the IGBT-module as shown in chapter C
ONNECTIONS
. Observe all tips and instructions
given in chapters H
ANDLING
AND
M
OUNTING
A
DVICES
and S
AFETY
N
OTICE
.
Connect the DC low voltage supply for the driver. Do not turn it on.
Connect the control signals from the double pulse tester.
Once you have double-checked that all the connections are correct, no wires inter-changed, all the bolts
are tightened to the correct torque and no conductive materials or swarf interfering with the required
clearance and creepage distances, the preliminary test can be started.
Pre-test
Turn on the DC low voltage supply for the driver. Make sure that there is no strange noise, smell, heat or
otherwise originating from the driver. The voltage supply LEDs should now light up green which means
that the system is working in nominal operation.
If something does not seem right, stop the test straight away and check for the reason! If there has been
an incorrect connection, make sure the driver is not damaged!
As with any electrical equipment, here too we begin with a much lower than nominal voltage. The DC-bus
voltage can be slowly increased to around 100V.
Make sure that there is no strange noise, smell, heat or otherwise originating from the driver or any other
part of the inverter section under test.
Take extreme care to protect yourself and any other persons and equipment from unexpected action or
reaction from the device under test and the connected test equipment.
DO NOT TOUCH ANY LIVE PARTS!
If all is well so far, continue to increase the voltage slowly to half the nominal DC-bus voltage. If something
does not seem right, stop the test straight away and check for the reason!
If all is well , continue to increase the voltage slowly to the nominal DC-bus voltage.
Make sure to remain at a safe distance to the equipment, in particular to the DC-bus, which now has a very
dangerous fault energy level. If something does not seem right, stop the test straight away and check for
the reason!
