3 ControlBoxes – SK SSX-3A
BU 0040 GB-1611 Subject to technical alterations 47
P1
P2
ATTENTION
If the parameter (P434[-01]) is set to values ≠ {00} or ≠ {07}, the IO-C mode of the SK SSX-3A is
barred when the frequency inverter restarts.
Boot UP display
After switching on, the lettering briefly appears in the display
Operation
Control of the Simple Setpoint Box SK SSX-3A in this mode is identical to that of the SimpleBox SK CSX-3H/ -3E
(see Section 2.2).
Control commands (enable/stop/direction of rotation) and setpoints from the box are only recognised by the
frequency inverter if it has not been enabled from other sources (e.g. digital input of the FI) (priority switching). This
also means that the drive of the source from which it was started must also be set back to Stop.
The setpoint value from the Simple Setpoint Box is only processed as a master setpoint. However, as usual,
setpoints from other sources can be taken into account in the form of auxiliary setpoints (e.g. frequency addition).
ATTENTION
If the SK SSX-3A is disconnected from an enabled frequency inverter, the drive will continue to
run. In order to stop the drive, the SK SSX-3A must be reconnected to the frequency inverter.
The parameter (P513) "Telegram timeout" can be set in order to monitor communication.
NOTE
With the use of the timeout function (P513) settings >{6s} should be avoided. Otherwise, if only
the actual value channel (Terminal C1 to Terminal 1) is interrupted, monitoring does not function.
Interruption of communication
An interruption of communication (disconnection of the plug, individual cables) has various effects on the frequency
inverter and the Simple Setpoint Box.
Disconnection of the actual value channel (Connection Terminal C1 (SK SSX-3A) to Terminal 1 (SK 2xxE))
The error E009 appears in the box display after a delay. The frequency inverter does not react and maintains its
operating condition. If the frequency inverter was started with the SK SSX-3A, it must also be stopped with the
SK SSX-3A. As an alternative, it is also possible to stop it with the SimpleBox (SK CSX-3x), NORD CON or the
ParameterBox in ControlBox mode.
The parameter (P513) "Telegram timeout" provides an optional monitoring of communication on the inverter side. If
the communication cannot be restored after interruption within the time set (max. 6 sec) the drive is stopped with
the error message
E010 (10.0).
If the data connection is restored, the SK SSX-3A starts a scan process and switches online again immediately
after this is completed. The error messages are no longer displayed.
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