Specifications

Core Software Operation
ADDvantage-32 PLUS ● AC to DC Power Converter
3-12
RUNG 19 The motor field can be enabled, disabled, or switched on or off by a digital bit. If
the field is commanded, then it stays picked up until D:ARM ENABLE drops out.
Field loss is enabled whenever D:FLD ENABLE is high or if Y:FIELD CNTL is
set to digital bit.
RUNG 20 Field loss protection is enabled in the following two sequences:
If Y:FIELD CNTL is set to Q:ENABLED and the field voltage reference
Y:FLD V_CMD is configured to the output of the field current loop A:VFLD
CMD.
If Y:FIELD CNTL is set to a digital bit, then field loss is enabled at any time the
armature SCR's are enabled.
Figure 3-1. ADDvantage-32 PLUS Logic Diagram (sheet 8 of 14)