Specifications

EMC-CS-2009.1
© Copyright Ford Motor Company – All Rights Reserved Page 52 of 121
February 11, 2010
13.3 Test Procedures
Testing shall be repeated for all DUT operating modes listed in the EMC test plan.
a)
Configure the transient generator for Mode 3, Pulse A2-1 (see Annex F). Close SW0 to activate the transient
generator. Using the oscilloscope, capture at least one complete transient sequence (see Figure D-12).
b)
Verify magnitude of the negative transient voltage disturbance measured at the test point (see Figure 13-1) is greater
than 300 volts. When completed, open SW0 to deactivate the transient generator.
c)
Repeat steps a) and b) with transient generator configured for Mode 3, Pulse A2-2. Verify that the peak-to-peak
transient current disturbance exceeds 20 amperes.
d)
Open SW0 to deactivate the transient generator. Configure the transient generator for Mode 2, Pulse A2-1.
e)
Activate the DUT and verify that it is functioning correctly.
f)
Place an individual DUT circuit wire or wire pairs (i.e. twisted wire pair) in the test fixture (see Annex H for
applicable circuit placement)
.
g)
Close SW0 to activate transient generator.
h)
Expose the circuit wire(s) for 60sec. A longer dwell time may be necessary if DUT function response times are
expected to be longer. This information shall be documented in the EMC test plan
./ Verify that DUT performance is
not affected. (i.e. Status I)
i)
Repeat step h) with the transient generator configured in the following modes:
• Mode 2, Pulse A2-2
• Mode 3, Pulse A2-1
• Mode 3, Pulse A2-2
j)
Repeat steps d) through i) for each DUT circuit wire.