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Sequencing Logic
Page
B-12
890CS Common Bus Supply - Frames B & D; 890CD Common Bus Drive and 890SD Standalone Drive - Frames B, C & D
8
9
10
11
A
B
C
D
1
2
3
4
5
6
7
E
Communications Status
The COMMS STATUS parameter (PREF 95.08) in the COMMS CONTROL function block monitors the
sequencing of the Drive. It is a 16-bit word based on standard fieldbus drive profiles. Some bits are not
implemented in the initial release and are set to 0 (see “Supported” column of the table below).
Bit Name
Description
Supported
0 Ready To Switch On
√
1 Switched On
Ready for operation (refer control bit 0)
√
2 Operation Enabled
(refer control bit 3)
√
3 Fault
Tripped
√
4 (Not) Voltage Disabled OFF 2 Command pending
√
5 (Not) Quick Stop
OFF 3 Command pending
√
6 Switch On Disable
Switch On Inhibited
√
7 Warning
8
SP / PV in Range
9
Remote
= 1 if Drive will accept Command Word
√
10 Setpoint Reached
= 1 if not ramping
√
11 Internal Limit Active
= 1 if current limit active or speed loop is in torque
limit
√
12
13
14
15