Telcoma T 200 Installationsanweisungen Seite 64

GB
MAS200 ANTI CRUSHING CARD
This optional MAS200 briefly closes the gates after detecting a mechanically locked motor.. When this hap-
pens LED L1 (det. 3 of fig. 1) lights up for a few seconds.
The movement following the above activation is in the opposite direction to that being carried out prior to
locking.
For example: if the motor becomes locked during gate opening, it automatically carries out a short closing
movement and upon pressing the button P/P restarts closing of the gate.
NOTES
- The module MAS200 is calibrated for each type of motor, see MAS200 instructions.
- The anti-crushing device does not activate during slowdown.
- If a motor is not connected or incorrectly connected, the module MAS200 activates continuously.
FOTO TEST
The foto test is a special function for checking the efficiency of the photocells prior to every movement.
For the foto test to work, the system must have two power supply lines for the photocells: the first is con-
nected to terminals 12 and 13 and powers the receivers, while the second is connected to terminals 14 and
15 and powers the transmitters.
The foto test function must be enabled by putting the dipswitch No. 7 to the ON position (det. 11 of fig. 1).
In practice the control unit cuts off the power supply, to the transmitter, for an instant and checks that the
receivers change state.
If everything is in correct and in working order, the motors start and gate movement begins; if the receiver
has a problem, the cycle is stopped and indicated by several fast blinks of the open gate indicator light.
NOTES
- The foto test also operates with the photocell 3 (wild input) and if several photocells are connec-
ted with the contact in series.
- With the foto test enabled and the control unit in stand-by, the photocell transmitters are not
powered and the inputs FT1 and FT2 are open (LEDs off). In this condition, it is still possible to
check photocell operation by short-circuiting the photocell "Test" pins (det. 13 of Fig. 1).
TRIAC TEST
The control unit T200 controls the motors through the TRIAC.
This component is essential to the system operation and safety.
If there is an anomaly, the control unit locks and the gate open indicator light blinks slowly.
NOTE:
Should the motors be incorrectly connected or the anti-crushing card MAS200 is not connected the
TRIAC fails safe.
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