Murphy Xpansion IX3212, Справочное руководство

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Section 80 00-02-0829
2018-02-26 - 25 -
DC motors or inductive loads such as relays exhibit a delayed inrush or stall current. A
window-shaped profile for the overcurrent and overheating protection is pre-programmed at
the factory.
The motor mode peak current is limited to 43.3 A nominally for up to 429 ms. The final level is
set at up to 15 A continuous current. If the limit is exceeded anywhere along the profile
including a lower continuous current limit that may be set, the FET goes into protection mode.
The Soft-Start function can be used in combination with the motor/lamp mode to affect the
inrush current and prevent an over-current condition.
NOTE:
The inductance of the motor, inertia of the rotor and load,
including a stalled rotor condition factor into whether the PDM is capable
of driving a DC motor. Experimentation is often necessary to determine if
a DC motor is compatible with the PDM.
4.3.1.5 Loss of Communication
Defines how the outputs behave when CAN communication is lost. This can be useful in many applications, but
because the PDM is no longer under supervisory control, appropriate testing should be conducted to ensure safe
operation.
00 = CH Unchanged (Last Commanded)
01 = CH -100% (H-Bridge Only)
10 = CH +100%
11 = CH 0% (off)
Data Length:
2 bits
Resolution:
4 states / 2 bits 0 offset
Data Range:
0 to 3 Operational Range: same as data range
Type:
Status (command)
PGN: PGN 61184 – Configure Output