ETAS ES4440.2 - 2 Hardware Features; Failure Simulation for 80 Channels

ES4440.2 Compact Failure Simulation Module - User’s Guide 19
ETAS Hardware Features
2 Hardware Features
This chapter contains detailed information on the features of the ES4440.2 Com-
pact Failure Simulation Module.
These are:
• "Failure Simulation for 80 Channels" on page 19
• "Failure modes" on page 20
• "Time Response" on page 23
• "Resistor Cascade" on page 24
• "Status Displays via LEDs on the Front Panel" on page 24
• "Master/Slave Operation of Several ES4440.2 Systems" on page 25
• "Safety Concept" on page 27
2.1 Failure Simulation for 80 Channels
The ES4440.2 Compact Failure Simulation Module has 64 channels which are
equipped for a continuous current of 20 A (at 30 V) and 16 channels for a volt-
age of 80 V RMS at 10 A current rating.
This number of ECU channels is sufficient if only outputs of engine ECUs (gaso-
line or diesel) have to be tested. If, however, inputs are to be tested simultane-
ously, two or more ES4440.2s are used in master/slave operation (see section 2.6
on page 25).
The text that follows describes which types of failure can be simulated for which
channels.