RST FRC-F Series, Manual

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9.581.140-6
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9.10 Use with synchronous machines / gearless
Before installing RST VVVF-controllers combined with synchronous gearless
drives the following points have to be strictly observed :
•
The GS signal (controller release) of clamp 53 has to be cut off under all working conditions and
emergency stop situations before opening of travel contactors. This includes inspection and emergency
operation, re-levelling, voltage failure, brushing landing door locks or any other occurrences which cause
an uncontrolled interruption of safety circuit.
Therefore it is mandatory that the GS signal is lead by a main contact of an auxiliary relay. The auxiliary
relay has in this case to be connected parallel to the travel contactors when activating the travel
contactors by the elevator control. If the activating of the travel contactors occurs by means of the
controller (ZS at clamps 7 and 8), the auxiliary relay has to be activated at the lower end of the security
circuit (please also see manual chapter 4.2).
Attention: Not all relays are suitable. For a 230V security circuit voltage we recommend the electronic
relay „EM-04“ of company Kollmorgen (other voltages on demand).
•
Inside of the motor terminal board a so-called „Drive-Protector“ for limitation of induction voltages should
be installed. You will receive further information on this matter from your supplier of drives.
•
The control period for the contactor separation in the control has to be longer than the sum of the periods
ZS + ZB + EH + I
Null_Aus
in the VVVF-controller. We therefore recommend a period of time not less than 2
seconds!
•
An operation of controller combined with synchronous gearless drives actually is only possible with an
absolute value encoder type ECN 1313 with EnDAT- or SSI-protocol of company Heidenhain.
•
Only use original encoder lines of the drive manufacturer of the necessary length. Please observe that
the pin - occupation of the 15-pole SUB-D-plug corresponds to the pin occupation of the RST controller.
For wrong connection there will be danger of damage of encoders and controller.
•
The connection cable of encoder may never be pulled out under voltage!
•
The protection of the encoder line has to be earthed compellingly at the housing of the controller with an
adequate clamp. Only screwing together the SUB-D-plugs is not sufficient!
•
The „calibrating“ of the drive can be done in free spinning position or with ropes.
•
The „interconnecting“ of the motor windings during standstill is not recommended by RST Elektronik for
permanently excitated synchronous drives, unless it is necessary to fulfil technical safety precautions. In
any case the relevant VDE-regulations for all-pole separation of the motor from the converter have to be
observed!
•
In case of “interconnecting” of the motor windings during standstill RST Elektronik does not take on any
guarantee for damages of the motor (burning of windings respectively demagnetisation of permanent
magnets).
•
For machine roomless concepts and decentralised order of the controllers with motor cable lengths of
more than 15 metres we recommend the utilisation of an additional output inductance coil!
Over more it is recommended to use an encoder cable with a higher wire size.
•
It is strictly forbidden to run permanently excitated synchronous drives in open-loop-mode!
In case of disregard of the above mentioned facts any warranty and guarantee expires!