Siemens SINAMICS G150, Operating Instructions Manual

Page: 161 / 680

Electrical installation
4.10 Other connections
Converter cabinet units
Operating Instructions, 07/2016, A5E03347396A
161
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
shielded cables twisted in pairs.
•
Connect the cable shield to ground potential through a large surface area.
•
Recommendation: Use suitable Motion Connect cables.
NOTICE
Damage to the 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 parameterized to 5 V or 24 V. The encoder may be
damaged for an incorrect parameterization.
• Select the appropriate supply voltage.
X521 / X531: Encoder connection 2 for HTL/TTL encoder with open-circuit monitoring
Table 4- 54 Encoder connection X521
Terminal Signal name Technical data
1 A Incremental signal A
2 A* Inverse incremental signal A
3 B Incremental signal B
4 B* Inverse incremental signal B
5 R Reference signal R
6 R* Inverse reference signal R
7 CTRL Control signal
8 M Ground via inductivity
Max. connectable cross-section: 1.5 mm²