AKD SynqNet | 5 Installation and Setup
5.1 Safety Instructions
Never disconnect any electrical connections to the drive while the drive is live. There is a danger of electrical
arcing with damage to contacts and serious personal injury. Wait at least seven minutes after disconnecting
the drive from the main supply power before touching potentially live sections of the equipment (e.g. con-
tacts) or undoing any connections.
Capacitors can still have dangerous voltages present up to 7 minutes after switching off the supply power.
To be sure, measure the voltage in the DC Bus link and wait until it has fallen below 60 V.
Control and power connections can still be live, even if the motor is not rotating.
Electronic equipment can fail. The user is responsible for ensuring that, in the event of a failure of the servo
amplifier, the drive is set to a state that is safe for both machinery and personnel, for instance with the aid of
a mechanical brake.
Drives with servo amplifiers and sercos® III are remote-controlled machines. They can start to move at any
time without previous warning. Take appropriate measures to ensure that the operating and service per-
sonnel is aware of this danger.
Implement appropriate protective measures to ensure that any unintended start-up of the machines cannot
result in dangerous situations for personnel or machinery. Software limit-switches are not a substitute for the
hardware limit-switches in the machine.
Install the drive as described in the
Installation Manual
. The wiring for the analog setpoint input and the pos-
itioning interface, as shown in the wiring diagram in the
Installation Manual
, is not required. Never break any
of the electrical connections to the drive while it is live. This action can result in destruction of the elec-
tronics.
The drive's status must be monitored by the PLC to acknowledge critical situations. Wire the FAULT con-
tact in series into the emergency stop circuit of the installation. The emergency stop circuit must operate the
supply contactor.
Use WorkBench to alter drive settings. Any other alterations will invalidate the warranty.
Because of the internal representation of the position-control parameters, the position controller can only be
operated if the final limit speed of the drive does not exceed:
rotary
at sinusoidal² commutation: 7500 rpm
at trapezoidal commutation: 12000 rpm.
linear
at sinusoidal² commutation: 4 m/s
at trapezoidal commutation: 6.25 m/s
All the data on resolution, step size, positioning accuracy etc. refer to calculatory values. Non-linearities in
the mechanism (backlash, flexing, etc.) are not taken into account. If the final limit speed of the motor must
be altered, then all the parameters that were previously entered for position control and motion blocks must
be adapted.
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Kollmorgen | kdn.kollmorgen.com | October 2020
