ABB PositionMaster EDP300, Инструкция по вводу в эксплуатацию

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20 CI/EDP300-EN Rev. C | PositionMaster EDP300
Option modules
Module for analog feedback AO
1)
Without signal from the positioner (e. g. “no power” or
“initializing”) the module sets the output to > 20 mA (alarm
level).
Terminals +31 / -32
Signal range 4 ... 20 mA (configurable split ranges)
Supply voltage, two-wire
technology
24 V DC (10 ... 30 V DC)
Characteristic curve rising or falling (configurable)
Characteristic curve
deviation
< 1 %
Module for digital feedback SW1, SW2 1)
Two switches for digital position feedback (position adjustable
within the range of 0 ... 100 %, ranges cannot overlap)
Terminals +41 / -42, +51 / -52
Supply voltage 5 ... 11 V DC
(Control circuit to DIN 19234/NAMUR)
Signal current < 1,2 mA: Switching state logical "0“
> 2,1 mA: Switching state logical "1“
Direction of action standard logical "0" or logical "1"
(configurable)
Module for universal input UAI 1)
Module for a 4 … 20 mA input for universal use.
The range can be scaled. It is used for advanced valve
diagnostics. For example, an ultrasonic sensor can be
connected to detect a faulty valve seat or a phonometer can
be connected to detect cavitation.
The limit values for detecting up-scaling can be freely
selected.
Terminals +21 / -22
Nominal operating range 4 ... 20 mA
Load voltage 8 V at 20 mA
Impedance 400 Ω at 20 mA
Module for the emergency shutdown function 1)
When the 24 V DC signal is interrupted, the I/P module
executes the respective safety function, depending on the
mechanical construction.
The positioner output 1 is depressurized, and the valve is
moved to the safe position. In case of a double-acting
actuator, output 2 is additionally pressurized.
The emergency shutdown module works independently of the
mother board, i.e., all information from the final control
element is available in the control system at any time.
Terminals +85 / -86
Supply voltage 24 V DC (20 ... 30 V DC)
(electrically isolated from the input signal)
Safe position Active at < 5 V DC
1) There are two slots for the option modules. Any combination of different option
modules is possible. However, identical option modules cannot be combined.
Limit switch
The limit switch can either be equipped with proximity
switches or with potential-free microswitches.
Limit switch Limit 1 / Limit 2 with proximity switches
Two proximity switches for independent position signaling.
Terminals +41 / -42, +51 / -52
Supply voltage 5 ... 11 V DC
(Control circuit in accordance with DIN
19234/NAMUR)
Output "logical 0" < 1.2 mA
Output "logical 1" > 2.1 mA
Switching point Adjustable between 0 … 100 %
Direction of action Metal tag in proximity
switch
Metal tag outside
proximity switch
Type SJ2-SN (NC; log.
1)
< 1.2 mA > 2.1 mA
Limit switch Limit 1 / Limit 2 with 24 V - microswitches
Terminals 41 / 42 / 43, 51 / 52 / 53
Supply voltage maximum 24 V AC/DC
Load rating Maximum 2 A
Change from two to one column