Sensors; Safety Supply Requirements - Danfoss VLT ISD 510 Design Manual

System Integration
The maximum cable length between the supply unit and
the SAB is 3 m.

4.9.2 Sensors

Digital input Input range nominal
Input range absolute maximum
rating
Bandwidth (-3 dB, simulation
results)
Switching threshold high
Switching threshold low
Delay including ADC conversion:
Rising edge 0–24 V
Falling edge 24–0 V
Input impedance 0–10.5 V
Input impedance 10.5–24 V
ADC resolution
ADC accuracy
Analog input Input range nominal
Input range absolute maximum
rating
Bandwidth (-3 dB, simulation
results)
Input impedance 0–10 V
ADC resolution
ADC accuracy
Sample rate for each channel
SPI Interface from ADC to FPGA
(PELV), functional isolated
Digital output Switchable output voltage,
controlled over fieldbus
Maximum output current
Maximum switching period
Maximum switching delay
Table 4.17 Sensors
MG36C102
Design Guide

4.9.3 Safety Supply Requirements

Supply the STO line with a 24 V DC supply with the
following properties:
•
•
0–24 V
-5 to +30 V
NOTICE
Use a 24 V supply unit that is CE marked according to
100 kHz
the standards EN 61000-6-2 and EN 61000-6-4 or similar
for industrial use. The supply must only be used for the
10 V
ISD 510 safety input. The supply must fulfill the PELV
5 V
specification.
<8 us
It is possible to use the auxiliary supply for the STO
<12 us
function if the following conditions are met:
•
5.46 kΩ ±1%
•
4.8–5.46 kΩ
12-bit
±250 mV
0–10 V
–5 to +30 V
25 kHz
5.46 kΩ ±1%
12-bit
±25 mV
195.3 kHz ±1%
12.5 MHz
0 V ±10%
24 V ±10%
150 mA
100 Hz
100 µs
Danfoss A/S © 08/2017 All rights reserved.
Output range: 24 V DC ±10%
Maximum current: 1 A
Output range: 24 V DC ±10%
Maximum cable length: 3 m
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