Janitza 800-CT8-LP handleiding
Handleiding
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800-CT8-LP module www.janitza.com
7. Installation
7.1 Current measurement with the module
Your 800-CT8-LP module in combination with a
basic device
· Measures current exclusively via low-power current
transformers.
· Allows the connection of LP current transformers
with a secondary voltage of 0 ..333mV for the
current measurement inputs I1 to I8.
· Has a default setting for the LP current transformer
ratios of 5A/333mV (I1 to I8).
· Does not measure DC currents.
7.2 Terminal assignment - schematic diagrams
Fig. "Current measurement" connection variant with 800-CT8-LP
module and terminal assignment.
Connections 1-4 (terminal 1)
Connections 5-8 (terminal 2)
CAUTION
Risk of injury or damage to the device due to high
measurement currents at the connections of the
current transformers or the current measurement
inputs of the device!
High measurement currents can cause temperatures
of up to 80°C (176°F) on the connections of the
current transformers
· Use wiring that is designed for an operating tem-
perature of at least 80°C (176°F)!
· The current transformers can be hot even after
the power supply has been switched off. Allow the
connections of the current transformers and the
connecting cables to cool down before touching
them!
· Make sure that screw terminals for the current
transformer connection on the device are ade-
quately tightened!
· Ground connections present on the secondary
windings of the current transformers must be con-
nected to ground!
· Observe the general safety information for han-
dling current transformers in section Sect. “2.7
Safety information for handling current transform-
ers” on p. 12.
· Comply with the information and provisions in the
usage information of your current transformers!
WARNING
Risk of injury due to high currents and high electri-
cal voltages!
Severe bodily injury or death can result from:
· Touching bare or stripped leads that are ener-
gized.
· Inputs of devices, components and modules are
dangerous to touch.
Therefore, please note for your system:
· Disconnect the supply of power before starting
work!
· Secure it against being switched on!
· Check to be sure it is de-energized!
· Ground and short circuit! Use the ground connec-
tion points with the ground symbol for grounding!
· Cover or block off adjacent live parts!
INFORMATION
The device and module illustrations may vary de-
pending on the basic device and connection termi-
nals used!
Basic device
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Productinformatie
| Merk | Janitza |
| Model | 800-CT8-LP |
| Categorie | Niet gecategoriseerd |
| Taal | Nederlands |
| Grootte | 7251 MB |
