Installation and connection • Connecting and disconnecting the motor
78
8JSA user's manual V1.00
5 Connecting and disconnecting the motor
Observe the following safety guidelines and instructions when connecting and disconnecting the motor:
The protective ground conductor must be connected via the power connection or motor connector.
Danger!
Personal injury and damage to property due to missing ground potential!
If there is no proper ground potential on the motor housing or servo drive, fault currents can lead to
serious personal injury and damage to property.
•
Properly (also during short-term test and trial operation!) connect the motor housing and the
servo drive to the ground potential (PE rail).
Danger!
Personal injury and damage to property due to direct mains connection!
Connecting the motor directly to the mains results in severe personal injury and damage to property.
•
Only operate the motor with B&R drive systems.
Danger!
Risk of injury due to electric shock!
If live parts are touched, there is immediate danger of fatal electric shock.
If connections are connected or disconnected in the incorrect order or when the power is switched on,
electric arcs can occur and persons and contacts can be damaged.
Even if the motor is not rotating or is running as a generator driven externally, the control and power
connections can still carry voltage!
•
Never touch connections when the power is switched on.
•
Never disconnect or connect electrical connections to the motor and servo drive when the
power is switched on!
•
Do not stay in the danger zone during operation and secure it against access by unauthorized
persons.
•
Always operate the motor with all safety equipment. Do this even during short testing and trial
operations!
•
Keep all covers and control cabinet doors closed during operation and as long as the machine
is not disconnected from the power system.
•
Before working on motors, gearboxes or servo drives or in the danger zone of your machine,
disconnect them completely from the power system and secure them against being switched
on again by other persons or automatic systems.
•
Note the discharge time of any existing DC bus.
•
Only connect measuring instruments when the power is switched off!