Siemens SLI-5310 Instrucciones de operaciones descargar pdf (Pagina 43)

Speciﬁ cations of the evaluation

Resolution

0.1 K

Power supply of sensor 3.3 V over dropping resistor R

= 2 k

Measuring current typically 1.2 mA at 25 °C (595 )

1.0 mA at 100 °C (990 )

Total delay

of temperature evaluation

160 ms max.

Cable length

with wire cross section of 0.14 mm

i 1 m

Filter time constants and conversion time are included. The time constant/response delay of the

temperature sensor and the time lag for reading out data through the device interface are not

included here.

Limit of cable length due to interference. The measuring error due to the line resistance is

negligible.

Information for the connection of an

external temperature sensor

• The external temperature sensor must

comply with the following prerequisites

as per EN 61800-5-1:

– Voltage class A

– Contamination level 2

– Overvoltage category 3

• Only connect passive temperature

sensors

• The connections for the temperature

sensor are galvanically connected with

the encoder electronics.

• Depending on the application, the

temperature sensor assembly (sensor +

cable assembly) is to be mounted with

double or reinforced insulation from the

environment.

• Accuracy of temperature measurement

depends on temperature range.

• The following applies for an ideal sensor:

–40 °C to 80 °C: ± 6 K

80 °C to 160 °C ± 3 K

160 °C to 200 °C: ± 6 K

200 °C to 270 °C: +0 K/–30 K

• Note the tolerance of the temperature

sensor

• The transmitted temperature value is not

a safe value in the sense of functional

safety.

• The motor manufacturer is responsible

for the quality and accuracy of the

temperature sensor, as well as for

ensuring that electrical safety is

maintained.

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