Parker ac890 - External Control of the Drive

B-8 Sequencing Logic
890CS Common Bus Supply - Frames B & D; 890CD Common Bus Drive and 890SD Standalone Drive - Frames B, C & D
External Control of the Drive
Communications Command
When sequencing is in the Remote Comms mode, the sequencing of the Drive is controlled by writing to
the COMMS COMMAND (PREF 95.05).
The COMMS COMMAND parameter is a 16-bit word based on standard fieldbus drive profiles. Some bits
are not implemented in this release (see “Supported” column of the table below).
Bit
Name
Description
Supported
Required Value
0
Switch On
OFF1 Operational

1
(Not) Disable Voltage
OFF2 Coast Stop

2
(Not) Quick Stop
OFF3 Fast Stop

3
Enable Operation

4
Enable Ramp Output
=0 to set ramp output to zero
1
5
Enable Ramp
=0 to hold ramp
1
6
Enable Ramp Input
=0 to set ramp input to zero
1
7
Reset Fault
Reset on 0 to 1 transition

8
0
9
0
10
Remote
=1 to control remotely
1
11
0
12
0
13
0
14
0
15
0