NORD Drivesystems BU0060 - Manual (Page 40)

CANopen – Supplementary manual options for NORD - Frequency Inverters
40 BU 0060 GB-4112
4.1.2 Control word (STW)
The control word (STW) is the first word transferred to the frequency inverter in the process data area
in an order telegram. For example, a control word "Ready for switch-on" corresponds to 047E
(hex)
. In
general the command "Standby" should be the first command which is transferred to the inverter.
Bit
Valu
e
Meaning Remarks
0 0 Not ready for operation Reverse with the brake ramp, with disconnection from supply at f=0Hz (OFF1)
1 Ready for operation Frequency inverter ready for operation
1 0 Disable voltage Cut off voltage; the inverter output voltage is switched off; the FI enters a state
where switching on is disabled. (OFF2)
1 Do not disable voltage Operating condition OFF 2 is cancelled
2 0 Emergency Stop active Quick stop with programmed quick stop time; with disconnection from supply at
f=0Hz; the FI switches to starting disabled condition (OFF3).
1 Emergency Stop not
active Operating condition OFF 3 is cancelled
3 0 Disable operation Cut off voltage; the inverter output voltage is switched off; the FI enters a state
where switching on is enabled.
1 Enable operation The output voltage is enabled; ramp to the existing setpoint
4 0 Pulse not enabled Ramp generator is set to zero; no disconnection from supply at f=0Hz; FI remains
in the operation enabled state.
1 Enable pulses Enable ramp generator
5 0 Ramp not enabled The setpoint currently provided by the ramp generator is "frozen" (frequency is
maintained).
1 Enable ramp Enable setpoint on ramp generator
6 0 Setpoint not enabled Selected setpoint value is set to zero on the ramp generator.
1 Enable setpoint Selected ramp generator setpoint is activated.
7 0 No acknowledgement With the switch from 0 to 1, errors which are no longer active are acknowledged.
1 Acknowledge error
(0
à1)
Note: If a digital input has been programmed for the "ack.fault" function, this bit
must not permanently be set to 1 via the bus (otherwise, flank evaluation would
be prevented).
8 0
1 Start function 480, 11 Bus bit 8 from the control word is set. Only for SK 2xxE and SK 5xxE. For further
details of the function please refer to parameter P480.
9 0
1 Start function 480, 12 Bus bit 9 from the control word is set. Only for SK 2xxE and SK 5xxE. For further
details of the function please refer to parameter P480.
10 0 Control data invalid The transmitted process data is invalid.
1 Control data valid Valid process data is transferred from the master.
Note: In order for the transmitted setpoint to be valid, this bit must also be set
(setting: interface), even if only setpoint values are transmitted via the bus.
11 0
1 Rotation right is on Rotational direction right (priority) ON*
12 0
1 Rotation left is on Rotational direction left ON*
13 0/1 Reserved Reserved
14 0/1 Parameter set Bit 0 ON 00 = Parameter set 1
01 = Parameter set 2 10 = Parameter set 3
11 = Parameter set 4
15 0/1 Parameter set Bit 1 ON
* If Bit 12=0, then "Direction of rotation right ON" applies
Table 7: Control word (STW)
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