Connecting The Th01, Th01-Ex Transmitter; Assembly Options In The Junction Head Cover - ABB TH01 Notice D'utilisation

2.3

Connecting the TH01, TH01-Ex transmitter

The maximum permissible load R
resistance R
calculated from this may not be exceeded.
Example 1:
U = 30 V:
S
≤ 954 Ω − (2 × R
R
load
U = supply voltage
S
Fig. 2-3
DANGER
The shield may only be earthed at one end on the power supply.
2.4

Assembly options in the junction head cover

The assembly screws for fastening the transmitter in the cover of the junction head are a supplied, integral part
of the transmitter.
3KDE115000R4284 Temperature Transmitter TH01, TH01-Ex, TH101, TH101-Ex
TH01/TH01-Ex temperature transmitter for sensor probe assembly
min. 9 V
load
is calculated using the following formula. Depending on the supply voltage Us, the value
L
≤ [(U
R
load
)
L
Connecting the TH01, TH01-Ex transmitter
R
L
Line resistance
R
L
Shield
(e.g. indicator, 250 Ω communication resistance etc.) including the lead
-9 V) / 0.022 A] - (2 × R
S L
Example 2:
U = 24 V:
S
≤ 681 Ω − (2 × R
R
load
R
load
Ω
(e.g. indicator, 250 communication resistance, ...)
+
≥
U 9...30 V DC
S
_
GND
U
S
)
)
L
= supply voltage
25