Stahl SERIES 400, Operating Instructions Manual

Page: 19 / 60

Permitted maximum values Operating Instructions MT-xx6-A
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R. STAHL HMI Systems GmbH / OI_MT_xx6_A_en_V_03_00_26.docx / 03.11.2020 Page 19 of 60
8.3 External intrinsically safe circuits
USB-0 (X4) and USB-2 (X6):
U
o
= 5.9 V
I
o
= 2.18 A
P
o
= 1.24 W
a) The maximum values for zone 1 group IIC are:
C
i
= 0 µF C
o
= 5.1 11 28 43 µF
L
i
= 0 mH L
o
= 10 5 2 1 µH
C
o
and L
o
pairs directly above/underneath each other may be used.
The maximum values for zone 1 group IIB are:
C
i
= 0 µF C
o
= 14 40 79 200 µF
L
i
= 0 mH L
o
= 50 20 10 5 µH
C
o
and L
o
pairs directly above/underneath each other may be used.
b) The maximum values for zone 2 group IIC are:
C
i
= 0 µF C
o
= 12 24 74 670 µF
L
i
= 0 mH L
o
= 10 5 2 1 µH
C
o
and L
o
pairs directly above/underneath each other may be used.
The maximum values for zone 2 group IIB are:
C
i
= 0 µF C
o
= 37 92 200 790 µF
L
i
= 0 mH L
o
= 50 20 10 5 µH
C
o
and L
o
pairs directly above/underneath each other may be used.
Reader RSi1 and RSi2 (X8) +Uint 1 (power supply circuit, X8.0, bridge to X8.2):
U
o
= 10.4 V
l
o
= 220 mA
P
o
= 2.29 W
a) The maximum values for zone 1 group IIC are:
C
i
= 1.72 µF C
o
= 0.8 µF
L
i
= 0 mH L
o
= 10 µH
C
o
and L
o
pairs directly above/underneath each other may be used.
b) The maximum values for zone 2 group IIC are:
C
i
= 1.72 µF C
o
= 4.68 µF
L
i
= 0 mH L
o
= 10 µH
C
o
and L
o
pairs directly above/underneath each other may be used.
Reader RSi1 (X8) +U_ex1 (power supply circuit, X8.2, bridge from X8.0):
U
i
= 12.4 V
I
i
= 220 mA
P
i
= 2.29 mW
C
i
= 25 nF
L
i
= 0 mH