DS4 C
HAPTER
1 - S
YSTEM
D
ESCRIPTION
1-3
limits the voltage rise during the
deceleration periods.
•
12 and 20 AMP Models:
The shunt regulator (regeneration) resistor
load is fuse protected. If the shunt regulator
is held on for too long, the shunt regulator
power transistor fails, or the shunt regulator
load resistor becomes shorted, the fuse will
blow and cause the Fault Contact on the
PSR4/5 to open and the BLOWN REGEN
FUSE LED to become illuminated.
Figure 1.1. BDS4 and PSR4/5 (Low Current Models shown)
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