56 ACH550-UH User’s Manual
Start-Up
Group 03: Actual Signals
This group monitors fieldbus communications.
Group 03: Actual Signals
Code Description Range Resolution Default S
0301 FB CMD WORD 1 - - -
Read-only copy of the Fieldbus Command Word 1.
• The fieldbus command is the principal means for controlling the drive from a fieldbus controller. The command
consists of two Command Words. Bit-coded instructions in the Command Words switch the drive between states.
• To control the drive, using the Command Words, an external location (
EXT1 or EXT2) must be active and set to
COMM. (See parameters 1001 and 1002.)
• The control panel displays the word in hex. For example, all zeros and a 1 in Bit 0 displays as 0001. All zeros and
a 1 in BIt 15 displays as 8000
0302 FB CMD WORD 2 - - -
Read-only copy of the Fieldbus Command Word 2.
• See parameter 0301.
Bit # 0301, FB CMD WORD 1 0302, FB CMD WORD 2
0 STOP FBLOCAL_CTL
1 START FBLOCAL_REF
2 REVERSE START_DISABLE1
3 LOCAL START_DISABLE2
4 RESET Reserved
5 EXT2 Reserved
6 RUN_DISABLE Reserved
7 STPMODE_R Reserved
8 STPMODE_EM Reserved
9 STPMODE_C Reserved
10 RAMP_2 Reserved
11 RAMP_OUT_0 REF_CONST
12 RAMP_HOLD REF_AVE
13 RAMP_IN_0 LINK_ON
14 RREQ_LOCALLOC REQ_STARTINH
15 TORQLIM2 OFF_INTERLOCK
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