Contents
R200
Isolated Analog Output Module 2MLF-DV4S, 2MLF-DC4S User's Guide
xv
September 2010
Honeywell
6.
PROGRAMMING .......................................................................... 93
6.1
Internal memory read/write .......................................................................... 93
Reading internal memory (GET, GETP instruction) ............................................................. 93
Write of internal memory (PUT, PUTP instruction) ............................................................... 94
6.2
Basic program ............................................................................................... 96
2MLF-DC4S ......................................................................................................................... 96
6.3
Application program ..................................................................................... 99
Inverter speed control .......................................................................................................... 99
BCD output of error code ................................................................................................... 102
7.
TROUBLESHOOTING ............................................................... 107
7.1
Diagnosing errors ....................................................................................... 107
Error codes ......................................................................................................................... 107
7.2
Diagnosis of errors ..................................................................................... 110
RUN LED blinks ................................................................................................................. 110
RUN LED is Off .................................................................................................................. 111
D/A output value hunted too much ..................................................................................... 112
Relationship discordant between digital value and analog output value ............................ 113
D/A output value always exceeds the value specified ........................................................ 114
Analog output value does not change according to the change of digital value ................. 115
Hardware error of D/A conversion module ......................................................................... 115
Status check of D/A conversion module through SoftMaster system monitoring ............... 116
8.
APPENDIX 1 .............................................................................. 119
8.1
Dimensions of 2MLF-DV4S/DC4S .............................................................. 119