ABB ACH550-01-038A-4 [182/476] This group monitors fieldbus communications see also chapter serial communications

178 Parameter listing and descriptions

ACH550-01 User's Manual

Group 03: FB ACTUAL SIGNALS

This group monitors fieldbus communications. See also chapter

Serial communications.

Code Description Range

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 display 0001. All zeros and a 1 in Bit 15 display 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