Distinctive features
For master / slave installations, note that the commissioning differs from that of
the standard DFA as follows:
• The operators of a master / slave installation must be connected together via
the communication line and the CAN-isolator 127.808.247 (see master / slave
circuit diagram in this manual).
• With the operators of a master / slave installation, the CAN bus terminating
jumper J13 must be set to Master/Slave (see Master/Slave circuit diagram in
this manual).
• The actuation devices must be connected to the Master. AKI, AKA and SSK
will be ignored by the Slave.
• Safety actuation devices (SIO, SIS) that are mounted on both door leaves must
be connected to the corresponding operator, i.e., the SIS on the Slave leaf
must be connected to the Slave drive.
• Electric locks and possibly present locking contacts (VAK) must be connected
to the corresponding operator, i.e., the electric lock on the Master leaf must be
connected to the Master drive.
• Using jumper J14 on the STG 127, one operator is set as Master and the other
as Slave. The operator of the active door leaf must always be selected as the
Master (see Master/Slave circuit diagram in this manual).
• The current feed to both operators must either be switched on simultaneously,
or the Slave must be switched on first.
• The calibration run is carried out individually for each operator. During the cali-
bration run of the Slave, the Master opens as well, so that the Slave will not be
obstructed.
• The opening and closing speed is the same for both operators, and the value is
transmitted from the Master to the Slave. The opening time delay is also speci-
fied by the Master in the same way. If these values are to be modified, they
must therefore be set on the Master operator; the Slave will take over the val-
ues immediately.
• The opening angle and automatic reverse, can be set separately at each op-
erator. Refer to the parameter list for the settings.
• If one of the operators should fail, it is recommended that the second operator
should also be disconnected from the power feed. Both operators can then be
restarted normally as described above.
• Special function for overlap, opening and closing sequence
Menu: MS 2-leaves / overlap, open sequence and closing sequence / Pa-
rameter value 1 (Speedo)
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