05.2006 Control Word and Status Word
Siemens AG 6SE7087-2JD60
SIMOVERT MASTERDRIVES Operating Instructions 10-7
Bit 23: Restart-on-the-fly enable command (H "restart-on-the-fly enable")
HIGH signal
♦ The command enables the restart-on-the-fly function.
Bit 24: Droop/technology controller enable command (H "droop/technology controller
enable")
HIGH signal
♦ The command enables the droop function, if P100 (open-
loop/closed-loop control type) is assigned 3 (closed-loop frequency
control) or 4 (closed-loop speed control), parameter P246 <> 0 and
the inverted pulses of the drive converter are enabled.
The speed/frequency controller output, fed back as negative signal
to the speed/frequency setpoint, can be set via parameter P245
(source steady-state) and P246 (scaling steady-state)
Bit 25: Controller enable command (H "controller enable")
HIGH signal and the drive converter inverter pulses are enabled.
♦ The speed controller output is enabled for the appropriate control
type (P100 = 0,4,5).
Bit 26: Command, external fault 2 (L "External fault 2")
LOW signal; it is only activated from the READY (011) condition
onwards and after an additional time delay of 200 ms.
♦ FAULT (007) and fault message (F036).
The inverter pulses are inhibited, the main contactor, if available, is
opened.
Bit 27: Slave/master drive command (H "Slave drive")/(L "Master drive")
HIGH signal, P100 (open-loop/closed-loop control type) = 3, 4 (closed-
loop frequency/speed control), and the drive inverter pulses are
enabled.
♦ Slave drive: The closed-loop control acts as closed-loop torque
control (M closed-loop control). With f closed-loop control, precise
torque control is not possible until from about 10 % of motor rated
speed onwards.
LOW signal, P100 (open-loop/closed-loop control type) = 3, 4 (closed-
loop frequency/speed control), and the drive converter inverter pulses
are enabled.
♦ Master drive: The closed-loop control operates as closed-loop
speed or frequency control (closed-loop frequency/speed control).
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