Control Systems NetPoint 546A-X1 Assembly instructions

Installation Sheet TCON289 12/00
NetPoint General Purpose Unit 546A-X1
(NP-546A-X1)
Controller Installation
Installation Notes:
•Check the mounting location for the NP-546A-X1. The available
area must measure at least 4.3" ×8" (11 ×20.3 cm) and should be
in a moisture-free container away from any large electrical devices.
The screw holes are 3.75" × 7.5" (9.5 ×19.1 cm) as shown in
Figure 1, and will require phillips or slotted pan head screws.
•The onboard velocity sensor requires that you install the controller
within four feet of the pickup probe in the air inlet duct of the VAV
box.
•The onboard velocity sensor also requires that you mount the
controller on a vertical surface. Installing the controller with the
barb fittings of the velocity sensor pointing down will help prevent
condensate from migrating into the onboard sensor.
•You will not need to remove the plastic cover to install the NP-
546A-X1, or any of the connections. To replace the 4A FB fuse,
remove the plastic cover, remove the old fuse and install a new fuse
(see Figure 2)
Connecting Analog 0–10 VDC Output Devices
1. Connect the analog device to TB3-1 through TB3-4 (AO1 to AO4,
see Figure 3).
2. Connect the ground wire of the device to the signal ground
terminal, TB3-5 (GND).
.
Figure 1. NP-546A-X1 (Covered) Figure 2. NP-546A-X1 (Cover Removed)
15432
8.00 "
20.3 cm
7.50 "
(19.1 cm)
4.30 "
(11 cm)
3.75 "
(9.5 cm)
DIN Rail
Mounting
Clip
24 VAC
Power Input
FTT
LON Port
I/STAT Port
OUTPUTS
OUT
24V
ANALOG
LON
AC PWR
INPUTS
PWR
SVC
8
7
6
5
4
3
2
1
76
54321
OUTPUTS
STAT
GND
12V
SIG
-
+
GND
24VAC
J1
SW1
TB7
TB3 TB4
TB1
TB2
TB6
TB5
43
24V GND
31
RX
TX
D2
D1
LED
Communications
Indicators
Triac Control
Outputs
Service Request
LED
Service Request
Push Button
Output Indicator
LEDs
Universal
Inputs
GROUND
OUTPUT 1
OUTPUT 2
OUTPUT 3
OUTPUT 4
OUTPUT 5
OUTPUT 1
OUTPUT 2
OUTPUT 3
OUTPUT 4
OUTPUT 5
OUTPUT 6
24VAC, 0.5A EACH, 2.0A TOTAL
TB6
RECEIVE
TRANSMIT
DISPLAY
POWER
TRIAC OUTPUTS
SERVICE
OUTPUT 6
STATUS
N1831
(62 VA MAX)
GROUND
TB3
ANALOG
AO-1
AO-3
GND
AO-4
AO-2
OUTPUTS
TB5
TB4TB2
OPERATION.
THIS DEVICE COMPLIES WITH PART 15 OF THE FCC RULES.
OPERATION IS SUBJECT TO THE FOLLOWING TWO CONDITIONS
1) THIS DEVICE MAY NOT CAUSE HARMFUL INTERFERENCE AND
2) THIS DEVICE MUST ACCEPT ANY INTERFERENCE RECEIVED,
INCLUDING INTERFERENCE THAT MAY CAUSE UNDESIRED
+24V
INPUT 4
INPUT 3
INPUT 2
75229
DALLAS, TX
P.O. BOX 59469
INTERNATIONAL
SYSTEMS
CONTROL
BY:
MADE IN USA
24V ~ 14VA
POWER:
SERIAL NO.:
MODEL:
607573-0006
LON+
LON-
I/STAT
PORT
POWER
SIGNAL
PORT
LON
INPUT 1
INPUT PORT
GROUND
TM
TB1
PWR
GROUND
24VAC
Plug-In LON
Mainentance Port
Analog
Outputs
Use the P3 Connector to
connect the X1 Sensor.
4-A FB ReplaceableFuse
Service
Switch
24 VAC Power Input
LON Port
I/Stat Port
LED Communications
Indicators
Figure 3. Output Device Connections
0–10 VDC
Analog Input
Actuator
TB3
ANALOG
AO-1
AO-3
GND
AO-4
AO-2
OUTPUTS
TB2
LON+
LON-
PORT
LON
GND
OUT
ANALOG
LON
AO-4
AO-3
AO-2
AO-1
-
+
TB3
TB2

2
NP-546A-X1 Installation Sheet TCON289–12/00
Connecting Contact, Thermistor, or Voltage (0–5 V) Sensors
Warni ng! Ensure that no power is connected to the NP-546A-X1
during electrical installation. Failure to disconnect
power from all interconnected equipment when
performing electrical installation may result in damage
to the components and/or electrical shock or burns.
1. Connect the external input devices (contact, thermistor, or
voltage) leads to an input terminal, TB5-1 through TB5-4 (Input 1
to Input 4, see Figure 4).
2. Connect the other input device lead (common return lead) to the
signal ground terminal, TB5-6 (Ground).
3. Voltage input devices derive power either from an off-board supply
or at the +24VDC terminal, TB5-5.
Connecting the Air Velocity Sensor
Perform the following steps to connect the airflow detection probe or
pickup ring to the controller:
Note: When performing these steps, use a maximum length of
4' (1.4 m) of 0.170" (4.3 mm) I.D. FRPE polyethylene
tubing or 0.25" (6.34 mm) O.D./0.125" (3.175 mm)
I.D. Tygon tubing.
1. Connect the low pressure side of the velocity sensor to the barbed
fitting labeled Low on the NP-546A-X1.
2. Connect the high pressure side of the velocity sensor to the barbed
fitting labeled High on the NP-546A-X1.
Caution! Do not make connections to the pressure sensor or
transmitter with excessive force. Applying
excessive force on either fitting could cause
permanent damage to the sensor or transmitter.
Note: Do not expose the on-board velocity transmitter to
moisture during installation or operation. If moisture is
a potential problem, orient the tubing and controller so
that the barbed fittings are situated at an elevation
higher than the lowest part of the tubing to create a trap
for any moisture accumulation.
I/STAT, W/STAT, and S/STAT Connections
1. Connect the I/STAT, W/STAT, or S/STAT white, red, and black
conductors to TB4-1 through TB4-3 (Signal, Power, and Ground)
as shown in Figure 6.
2. The blue lead delivers the signal (voltage) from the slide
potentiometer on the S/STAT and the yellow lead delivers the
contact closure from the push-button switch. The use of these
signals, and the choice of input terminals is dependent upon
whether a customized application program has been placed in the
controller.
Figure 4. Input Device Connections
TB5
+24VDC
GROUND
INPUT 4
INPUT 3
INPUT 2
INPUT 1
INPUT PORT
GROUND
INPUTS
TB5
+244321 GND
10K ohm Thermistor
0–5V
Analog Sensor
Figure 5. Velocity Sensor Connections
High Low
Airflow
4'
Tubing (Max.)
Air Flow Sensor
Low
High
Low
High
Figure 6. I/STAT, W/STAT, and S/STAT Connections
White
Red
Black
I/STAT, S/STAT and W/STAT
TB5
TB4
GROUND
INPUT 4
INPUT 3
INPUT 2
I/STAT
PORT
POWER
SIGNAL
INPUT 1
INPUT PORT
GROUND
NOT USED
INPUTS
STAT
TB4 TB5
GND
54321
GND
12V
SIG
Blue
Yellow
S/STAT Only

3
NP-546A-X1 Installation Sheet TCON289 – 12/00
Connecting the FTT-10A
1. Connect one lead of the twisted pair LON ¬cable to terminal TB2-
1 (LON+, see Figure 7).
2. Connect the other lead of the twisted pair LON cable to terminal
TB2-2 (LON –).
3. If shielded cable is used, the shield drain wire continuity must be
maintained as the LON cable passes through each NP-546A-X1.
Shield drain wires from each controller LON cable must be twisted
together, insulated, and tied back such that wires do not come in
contact with ground or any conductive surface.
Note: Connect the shield drain wire to Electrical Service Earth
Ground at only one end of the cable through a 470K
Ohm resistor.
4. Connect a LonPoint™ System Terminator, Model 44100, anywhere
on a free topology segment. Connect a Model 44101 on each end
of a bus topology. Refer to LONWORKS FTT-10A Transceiver User’s
Guide for a full description.
Note: The preferred location for the terminator on a free
topology segment is at a router.
Connecting the Triac Output Devices
1. ¬Connect one lead of a control relay to TB6-1 through TB6-6
(Output 1 through Output 6) as shown in Figure 8.
2. Connect the other lead of the control relays to earth ground as
shown.
3. Repeat as required for additional connections.
Note: You must establish a proper earth ground connection
point prior to connecting wires to electrical equip-
ment.
•Electrical Service Earth Ground wire must be
securely connected to the equipment chassis, and
to the ground terminal on the controller power
input terminal block, TB1-2 (Ground).
•The 24 VAC transformer secondary lead must be
securely connected to the Electrical Service Earth
Ground wire.
Connecting the Power Supply
1. Connect the 24 VAC input lead from a separate, isolated Class-2 24
VAC transformer to TB1-1 (24 VAC, seeFigure 9).
2. Connect TB1-2 (Ground) to earth ground using 14-AWG wire (2.1
mm2). TB1-2 connects to the same earth ground connection as the
neutral lead from the transformer.
Note: Connecting TB1-2 to a chassis bonding post separated
by seams, welds, or fasteners in the metal chassis could
produce continuity ground faults.
Caution! Applying 24 VAC power to any connector other than
TB1 will cause component damage to the NP-546A-X1
circuit board.
Figure 7. FFT-10A LON Connections
TB1
TB2
LON+
LON-
PORT
LON
PWR
GROUND
24VAC
OUT
24V
ANALOG
LON
AC PWR
-
+
GND
24VAC
J1 TB3
TB1
TB2
+
–
Shield
Splice
FTT-10A LON
470K ohm, 1/4 Watt,
≤10% metal film resistor
Note: Connect only
if using shielded cable.
Figure 8. Output Device Connections
OUTPUTS
TB6
7654321
GROUND
OUTPUT 1
OUTPUT 2
OUTPUT 3
OUTPUT 4
OUTPUT 5
OUTPUT 6
24VAC, 0.75A EACH, 2.0A TOTAL
TB6
TRIAC OUTPUTS
24 VAC @ 0.75 A each maximum, 2.0 A maximum Total
Earth
Ground
Figure 9. Power Connections
Earth
Ground
Line Voltage 24 VAC
24 VAC Transformer
TB1
TB2
LON+
LON-
PORT
LON
PWR
GROUND
24VAC
LON
AC PWR
J1
TB1
TB2
24V
GND
-
+

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NP-546A-X1 Installation Sheet TCON289 – 12/00
Service Request
To generate a service request, press the Service Request push-
button.
Note: This causes the Neuron chip to broadcast a message
containing its Neuron ID and program ID to any
connected LONWORKS® application. This is required to
configure the NP-GPU for operation on a LONWORKS
network.
Specifications
Dimensions
NP-546A-X1: .8.0"L × 4.3"W ×2.5"H (20.3 ×10.9 ×6.4 cm)
Operating Environment
Temperature: . . . . . . . . . . . . . . . . . 32°to 122°F (0°to 50°C)
Humidity:. . . . . . . . . . . . . . . 10 to 90% RH, non-condensing
Input power: . . . . . . . . . . 24 VAC ±10%, 50/60 Hz @ 9VA,
single Class-2 power source,
+ 1.1VA with I/STAT
+ 1.5VA Analog Output Load – maximum
+ 2.4VA sensor +24VDC load – maximum
Note: Input power does not include the Triac sourcing load.
FTT Cable Requirements
FTT, 78Kbps, LonTalk™
Note: Refer to TCON221, “NetPoint GPU Technical
Reference Guide” and LONWORKS FTT-10A
Transceiver User’s Guide for details.
I/STAT-A, M/STAT-A and W/STAT: 18–24 AWG (0.897–0.206
mm2) three conductor cable or shielded, twisted
pair (Belden 9184 equivalent) 100 feet (30 m)
maximum from the controller. Total capacitance
may not exceed 4 000 pF.
Inputs/Outputs
Inputs: Discrete — dry contact, excitation 5 V at 0.5 mA
Analog — 10K Ohm NTC thermistor, Dale
1M1002-C3 (Reference CSI TTS100 specification)
Accuracy: 0.5% voltage span max. at 25° C
Resolution: 0.1% voltage span
Temperature span: -40°to 148°C (-40°to 300°F)
Analog — 0– 5 VDC
Accuracy: 0.5% span maximum at 25° C
(0.25% typical)
Resolution: 0.1% Span
Outputs: Discrete: 24 VAC voltage sourcing Triac (6 each)
0.75 A per output maximum (total current
output 2 A maximum)
Analog: 0–10 VDC Analog output (4 each)
10 mA maximum current load
Resolution: 0.4% span
Accuracy: 2% span
Agency Approvals
FCC Part 15UL916 Energy Management Equiptment Pending
UL94-5V Rated Enclosure
CE Marked for EC Compliance
Approved and marked in accordance with Australian EMC
Framework