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Electric shock in the event of voltage flashovers at the temperature sensor
Voltage flashovers in the signal electronics can occur in motors without safe electrical
separation of the temperature sensors.
• Only use temperature sensors that fully comply with the specifications of the safety
NOTICE
Device failure as a result of unshielded or incorrectly routed cables to temperature sensors
Unshielded or incorrectly routed cables to temperature sensors can result in interference
being coupled into the signal processing electronics from the power side. This can result in
significant disturbance of all signals (fault messages) up to failure of individual components
(destruction of the devices).
• Only use shielded cables as temperature sensor cables.
• If temperature sensor cables are routed together with the motor cable, use separately
• Connect the cable shield to ground potential through a large surface area.
NOTICE
Damage to motor in the event of incorrectly connected KTY temperature sensor
If a KTY temperature sensor is connected with incorrect polarity, it is not possible to detect
when the motor overheats. Overheating can cause damage to the motor.
• Connect a KTY temperature sensor with the correct polarity.
NOTICE
Damage to the encoder due to incorrect supply voltage
The encoder power supply can be configured to 5 V or 24 V. The encoder may be
damaged for an incorrect parameterization.
• Select the appropriate supply voltage.
Note
Cable shield for the encoder connection via terminals
Note that when the encoder is connected via terminals, the cable shield must be applied to
the module.
Enclosed Drives
Operating Instructions, 12/2018, A5E36652151A
WARNING
isolation.
shielded cables twisted in pairs.
Electrical installation
4.9 Additional connections
175
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