DG-IRMCK203 Datasheet, PDF (54/67 Pages) International Rectifier – Application Developer’s Guide

IRMCK203 Application Developer’s Guide
Field
Name
GatekillFlt
LvFlt
OvFlt
OvrSpdFlt
ExecTmFlt
ZeroSpdFlt
RetryFlt
PhsLossFlt
Access Field Description
(R/W)
R
Filtered and latched version of IR2137 FAULT output.
R
DC bus low voltage fault. This fault occurs if the DC bus drops
below 120V.
R
DC bus overvoltage fault. This fault occurs if the DC bus voltage
exceeds 410V.
Over speed fault. This fault occurs whenever the motor reaches the
positive or negative limits. The user should use the scale factor in
R
the SpdScl field of the VelocityControl write register group to scale
the motor speed so that it falls between -16384 and +16383 with
these limits as the over speed condition.
R
Execution time fault.
R
Zero Speed fault. When speed is less than MinSpd/2 (half
minimum speed) for a continuous period of 2 4 seconds, the zero
speed fault will be set.
R
Start-up retry fault. After a certain number (determined by parameter
NumRetries) of start-up failures, this fault will be set.
R
Phase loss fault. Drive to motor phase connection may be loose.
FaultStatus Read Register Field Definitions
4.3.5 VelocityStatus Register Group (Read Registers)
Byte
Offset
Bit Position
7
6
5
4
3
2
1
0
0x26
Spd (LSBs)
0x27
Spd (MSBs)
VelocityStatus Read Register Map
Field
Name
Spd
Access Field Description
(R/W)
R
Current motor speed in SPEED units. (See the description of SpdScl
in the VelocityControl write register group.)
VelocityStatus Read Register Field Definitions
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