ITech IT6000C Series User Manual page 94

•
t: Time
•
U: Test voltage
•
t : Duration of pulse
d
•
t : Rising Slope
r
•
U : The supply voltage of the generator in operation: U
A
tem, U =28V in the 24V system. (see ISO 16750-1)
A
•
U : Peak voltage
S
•
U *: Supply voltage with load dump suppression (i.e. clamping voltage)
S
Parameter
U S a (V)
79≤U
It is fixed at 35V
U *(V)
here and cannot
S
be set.
Ri a (Ω)
0.5≤Ri≤4
t (ms)
40≤t
d
t (ms)
–
r
a If not otherwise agreed, use the upper voltage level with the upper value for in-
ternal resistance or use the lower voltage level with the lower value for internal
resistance.
The following general considerations of the dynamic behavior of alternators dur-
ing load dump apply:
Copyright © Itech Electronic Co., Ltd.
Type of system
12V
≤101 151≤U
S
As specified by cus-
tomer (typical value
58)
1≤Ri≤8
≤400 100≤t
d
–
Power Supply Function
=14V in the 12V sys-
A
Minimum test
requirements
24V
≤202
S
5 pulses at 1 minute
≤350
d
intervals
82