Bit 1:
Ready for Operation
Bit 5:
Fault/Warning
0
0
Inverter not ready for operation
0
1
Fault
1
0
Inverter is ready for operation
1
1
Warning
If status word 1 is active (factory setting), bit 5 = 1 will at the same time signal the fault code in the
more significant byte of status word 1. The fault bit remains set until the fault is cleared with a reset
or the warning is cancelled. The more significant byte in status word 1 will then change to unit status
indication again.
Limit Switch Processing (not for MOVITRAC
®
31.., size 0)
Bits 6 and 7 signal the current status of the limit switches connected to the input terminal of the
inverter. The limit switch processing is active if two inverter input terminals are programmed to
Limit
Switch CW and Limit Switch CCW. As soon as one of the limit switches is actuated, an internal
switch-off is effected independent of the specified control word, and the corresponding status bits
in the status word of the inverter are set accordingly. This will inform the higher-level master about
the current status of the limit switches and enable it to instruct the inverter to travel in the opposite
direction. While the terminal signals of the limit switches are active when “0”, the condition of the
limit switches in the status word of the inverter is indicated by a high (“1”) level.
3.5.2
Status Word 1
In addition to the most important status data in the basic status block, status word 1, in the more
significant status byte, alternately contains either
Unit Status data or Fault Code data. Depending on
the fault bit, the unit status is indicated if the fault bit = 0 whereas the fault code is displayed if a fault
has occurred (fault bit = 1) (Fig. 21). When the fault is cleared, the fault bit is reset and the current
unit status shown again.
15 14 13 12 11 10 9
8
7
6
5
4
3
2
1
0
Fault / warning?
Bit 5 = 1?
YES
NO
Fault code
01: Overcurrent
02: V DC link
etc.
Unit status
00: Controller inhibit
01: No enable
etc.
Controller eneabled
MC 31.. ready for operation
Fieldbus mode active
Active ramp generator set
Active parameter set
Limit switch CW active
Limit switch CCW active
Fault / warning
Permanently defined
Unit status / Fault code
00331AEN
Fig. 21: Assignment of status word 1
3
Inverter Control
with Process Data
MOVITRAC
®
31.. Fieldbus Unit Profile
35
Phone: 800.894.0412 - Fax: 888.723.4773 - Web: www.clrwtr.com - Email: [email protected]
