6.1.2 Status word (ZSW)
With the help of the status word, the amplifier state can be represented and a transmitted control
word can be verified. If the amplifier does not react to changes of the control word (STW) as expec-
ted, the marginal conditions like (enable of the output stage – hardware + software, application of
the DC bus link voltage) must be checked.
The bits in the status word can be mode-dependent or mode-independent. The following table
describes the bit assignment in the status word.
Bit Name Comment
0 Ready for switch-on ---
1 Switched on ---
2 Operation enabled ---
3 Error see ASCII command ERRCODE
4 Voltage inhibited ---
5 Fast stop ---
6 Switch-on inhibit ---
7 Warning see ASCII command STATCODE
8 Setpoint / actual value monitoring only in opmode position-control: following error indicator
9 Remote not supported, fixed to 1
10 Setpoint reached only in position mode: In Position
11 Limit active not supported at present
12 Depends on mode used in mode ASCII
13 Depends on mode used in mode ASCII
14 Manufacturer specific used in mode ASCII
15 Manufacturer specific reserved
States of the status machine:
State Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
Not ready for switch-on 0 X X 0 0 0 0
Switch-on inhibit 1 X X 0 0 0 0
Ready for switch-on 0 1 X 0 0 0 1
Ready for operation 0 1 X 0 0 1 1
Operation enabled 0 1 X 0 1 1 1
Error 0 X X 1 X X X
Error response 0 X X 1 0 0 0
Fast stop active 0 0 X 0 1 1 1
6.2 Operating modes(Opmodes)
The selection of a new operating mode (➜ # 27). This procedure must be followed for proper amp-
lifier operation.
Appropriate precautionary measures against damage caused by faulty presentation of data
formats or normalization of the setpoints must be taken by the user.
The possible operating modes are described below. PROFIBUS operating modes with a positive
number (1,2) are defined in the drive profile. Operating modes with a negative number (-1,-2...)
are labeled in the drive profile as being manufacturer-specific modes.
S300-S400-S600-S700 PROFIBUS | 6 Process data channel
Kollmorgen | kdn.kollmorgen.com | December 2019 41
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