ABB TEIP11, Инструкция по эксплуатации

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12 42/18-46-EN Rev. L | TEIP11, TEIP11-PS
6.2 Electrical connections
WARNING
Risk of injury due to live parts!
When the housing is open, contact protection is not provided
and EMC protection is limited.
Before opening the housing, switch off the power supply.
NOTICE
For electrical installation, the following standards, data, and
documents must be complied with:
— The applicable regulations and safety standards for the
installation and operation of electrical systems.
— The additional regulations, standards, and directives for
the installation and operation of explosion-proof
systems, if explosion-proof devices are in use.
— The values for the electrical connection (see section
"Electrical data" on page 12).
— The information on the explosion protection certificate,
for an explosion-proof design.
NOTICE
Adverse effect on input signals
Power supply leads in the immediate vicinity of the signal
lines produce interference which can impair the input signals
to the devices.
Do not install the signal line together with power supply
leads.
6.2.1 Cable glands
The field mount housings feature a Pg 11 cable entry.
Aluminum or stainless steel field mount housing
Ex Protection Cable entry
Standard / Ex ia Cable gland 1/2" NPT
Ex d Tapped bore M20 x 1.5
FM / CSA "Intrinsically Safe" /
"Explosion Proof"
Tapped bore 1/2" NPT
6.2.2 Position of the terminals
The electrical connection is provided by 2-pin screw terminals
for conductor cross-sections up to a maximum of 2.5 mm
2
(14 AWG).
Do not reverse the polarity (+/-) when connecting the signal
line.
Control room housing unit for rail and block mounting
The terminals are located on the side of the housing unit.
Plastic, aluminum, or stainless steel field mount housing
The terminals are located inside the housing unit. Therefore,
the field mount housing must be opened in order to connect
the cable.
6.2.3 Electrical data
Signal range
0 ... 20 mA or 4 ... 20 mA
0 ... 10 mA or 10 ... 20 mA
4 ... 12 mA or 12 ... 20 mA
(additional ranges available upon request)
Input resistance
Ri = 260 Ω at 20 °C (68 °F), Tk + 0.4 %/K
Overload limit
30 mA (for explosion-proof devices, see the information in
chapter "Use in potentially explosive atmospheres" on page 5)
Capacitance/inductance
Negligible
6.3 Pneumatic connections
NOTICE
Damage to components!
Always blow dust, splinters, and any other dirt particles off
the air inlet line before it is connected. Such particles could
block the unit.
Take precautions to ensure that in the event of an error the
pressure does not rise above 4 bar (60 psi). This could result
in mechanical damage to the unit.
NOTICE
— The TEIP11 and TEIP11-PS I/P signal converters may
only be operated with instrument air that is free of oil,
water, and dust.
— If a version with a plastic housing is operated with
combustible gas, an additional line must be installed to
route the gas to a safe place in the open air.
1/8, 1/4, and 3/8 NPT threaded holes are provided for
connecting the air pipes (supply air and output pipes).
The connections for the power supply (supply air) and the
output are marked accordingly.