Download PM temperature & process controller user`s manual Rev. J 11.23 MB

Warning:
Óç
Use National Electric (NEC) or other
country-specific standard wiring and
safety practices when wiring and
connecting this controller to a power
source and to electrical sensors or peripheral devices. Failure to do so may
result in damage to equipment and
property, and/or injury or loss of life.
Note:
Maximum wire size termination and
torque rating:
• 0.0507 to 3.30 mm2 (30 to 12 AWG) single-wire termination or two 1.31 mm2 (16 AWG)
• 0.8 Nm (7.0 lb.-in.) torque
Profibus DP Communications
Slot B & E
+5Vdc Voltage Potential
VP
485 T+/R+
B
485 T-/R-
A
Digital ground
DG
Termination resistor B
trB
485 T+/R+
485 T-/RTermination resistor A
B
A
trA
Note:
Adjacent terminals may be labeled
differently, depending on the model
number.
Note:
To prevent damage to the controller, do not connect wires to unused
terminals.
Note:
Maintain electrical isolation between
analog input 1, digital input-outputs,
switched dc/open collector outputs
and process outputs to prevent ground
loops.
EIA/TIA-485 Name
Watlow Terminal
Label
Function
VP (Voltage Potential)
----
VP
+5Vdc
B-Line
B
B
T+/R+
A-Line
A
A
T-/R-
DP-GND
common
DG
common
Profibus DP LED Indicators
Note:
This Equipment is suitable for use in
CLASS I, DIVISION 2, Groups A, B,
C and D or Non-Hazardous locations
only. Temperature Code T4A
Closest to the Front
Explosion Hazard – Substitution of
component may impair suitability for
CLASS I, DIVISION 2.
Warning:
• If external termination is
to be used with a 150 Ω
cable place a 390 Ω resistor across pins VP and B, a
220 Ω resistor across pins
B and A, and lastly, place a
390 Ω resistor across pins
DG and A.
• Do not connect more than
32 EZ-ZONE PM controllers on any given segment.
• Maximum EIA-485 network
length: 1,200 meters (4,000
feet)
• 1/8th unit load on EIA-485
bus.
• Communications instance 2
Slot B: PM [6] _ _ _ _-[6] _ _
____
Slot E: PM [4, 8, 9] _ _ _ _-[6]
______
Profibus Terminal
Note:
The control output common terminal
and the digital common terminal are
referenced to different voltages and
must remain isolated.
Warning: ç
• Wire T-/R- to the A terminal of the EIA-485 port.
• Wire T+/R+ to the B terminal of the EIA-485 port.
• Wire Digital Ground to the
common terminal of the
EIA-485 port.
• Do not route network wires
with power wires. Connect
network wires in daisychain fashion when connecting multiple devices in
a network.
• A termination resistor
should be used if this control is the last one on the
network.
• If using a 150 Ω cable Wat-
low provides internal termi-
nation. Place a jumper
across pins trB and B and
trA and A.
Viewing the unit from the front and then looking on top of the RUI/GTW two
bi-color LEDs can be seen where only the front one is used. Definition follows:
Indicator LED
Description
Red
Profibus network not detected
Red
Flashing
Indicates that the Profibus card is waiting for data
exchange.
Green
Data exchange mode
ç
Explosion Hazard - Do not disconnect
while the circuit is live or unless the
area is known to be free of ignitable
concentrations of flammable substances.
Watlow EZ-ZONE ® PM Integrated Controller
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37
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Chapter 2 Install and Wire