Lenze 931W - Manual (Page 31)

Control word / status word
The status word (ZSW)
6
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31 K-HB 13.0001-EN 2.1
6.3 The status word (ZSW)
The current status of the drive is output in the status word and made available to the
master control or PLC. By analogy with the explanation of the control word, first the
meanings of the controller type independent bits of the status word are explained in
Tab. 10. Then the bits with the controller type-specific meaning are explained in Tab. 11
(speed control) and Tab. 12 (position control).
Bit Value Significance Meaning
0 1 Ready to switch on Device is power-supplied, electronics is initialised. Pulses for power section
are suppressed.
0 Not ready to switch
on
Drive is in the S1 status ”Switch-on inhibit”.
1 1 Ready for operation The drive is ready for operation (status S2). In this status, the output stage
is supplied with voltage but not yet enabled (see bit 0 of the control word).
0 Not ready for
operation
The device is not ready for operation.
2 1 Operation enabled The drive is in S4 status ”Operation enabled”. The current setpoint is
processed (see bit 3 of the control word).
0 Operation not
enabled
Either the pulses are switched off (no voltage at the motor) or the drive
does not follow the setpoint.
3 1 Error is pending A non-acknowledged error (see bit 7 of the control word) or an error that
cannot be acknowledged is pending at the drive. The response of the drive
is error and device-specific. In case of a fatal error it is changed to status S1
”Switch-on inhibit”. The error can - if the cause has been removed - be
cancelled by an acknowledgement.
0 No error No error is currently pending.
4 1 Coasting function is
deactivated (no
OFF 2)
The coasting function (see bit 1 ”OFF 2” of the control word) is not active
(bit 1 STW = 1).
0 Coasting function is
active (OFF 2)
The coasting function (see bit 1 ”OFF 2” of the control word) is active (bit 1
STW = 0).
5 1 Quick stop function
is deactivated (no
OFF 3)
The quick stop function (see bit 2 ”OFF 3” of the control word) is not active
(bit 2 STW = 1).
0 Quick stop function
is active (OFF 3)
The quick stop function (see bit 2 ”OFF 3” of the control word) is active (bit
2 STW = 0).
6 1 Switch-on inhibit The drive can only change from the S1 state ”Switch-on inhibit” to the S2
state ”Ready to switch on” by changing the control word (no OFF2 (bit 1
STW) and no OFF3 (bit 2 STW) followed by ON (bit 0 STW)). After that the
bit 6 of the ZSW returns to 0 (no switch-on inhibit).
0 No switch-on inhibit The drive is in a higher status than S1 ”Switch-on inhibit”.
7 1 Warning is active A warning is pending. The warning does not need to be acknowledged.
0 No warning No warning is pending.
9 1 Control authority is
required
The control authority is required for the control (PLC) communicating via
PROFIBUS (see bit 10 of the control word). The drive can be commissioned
via the PROFIBUS.
0 Control authority is
not required
The drive cannot be controlled via the control (PROFIBUS). Either the
control authority must be requested (see bit 10 of the control word) or the
drive must be commissioned via another interface (see parameterisation
software Fluxx).
14-15 Device-specific These device-specific bits are not used.
Tab. 10 Overview of the non-controller-type specific bits of the status word (ZSW)