Agrowtek MX1i User manual

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1© Agrowtek Inc. | www.agrowtek.com | Technology to Help You Grow™
Technology to Help You Grow
AGROWtEK
Intelligent Reversing Motor Controller
for D.C. or Single-Phase A.C. Motors
Contents
Introduction 2
Position Control 2
Integrated Feedback 2
Installation Instructions 3
External Features 3
Dimensions 4
DC Power Connections 4
Mounting the Relay 5
Internal Component Locations 6
AC Motor Wiring 7
DC Motor Wiring 8
Specications
Input Power 2 W @ 12-24Vdc
Class II / Limited Energy Power Supply
Max Switching Current 8A @ 120Vac ~
2A @ 24Vdc
Max Switching Voltage 120 Vac ~ / 24Vdc
HP Rating 1/2HP (8FLA @ 120Vac ~)
Status Indicators Red LEDs, Forward/Reverse
Enclosure Knock-Outs (2) dia. 7/8”
Enclosure Rating TYPE 12K NEMA
Interface GrowNET™, MODBUS
Relay Ratings 100,000 cycles
Relay Cycle Counters Up to 4 billion cycles per relay
Connection to GrowControl™ GCX 9
GrowNET™ Hubs 9
Connection to USB AgrowLINK 10
Connection to MODBUS RTU 10
Supported Commands 11
Register Types 11
MODBUS Coil Registers 11
MODBUS Holding Registers 11
Technical Information 12
Troublshooting 12
Maintenance & Service 12
Storage and Disposal 12
Warranty 12
INSTRUCTION MANUAL
MX1i
KEEP THESE INSTRUCTIONS

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Introduction
MX1i intelligent motor controllers are designed to operate reversing gear motors for ridge vents, shade
curtains, roll-up side walls and other similar applications. Models are available for both AC (single phase) and
DC current.
The relays in the MX1i are designed in interlocking circuitry such that it is physically impossible to activate
both the forward and reverse direction at the same time even under conditions of a cpu failure, contact
weld, or other component failure.
Position Control
Position is controlled in terms of “percent open”(% open) and is based on the amount of time that is re-
quired to operate a motor between a fully closed position and a fully open position. The total amount of
time required to open from a close (or vice-versa) is referred to as the“travel time.”Travel time is set in the
MX1i by the GCX control system on the device conguration page (see conguration.)
The position is stored in the MX1i’s local memory every time the travel stops. In the event that an operator
changes the position by using the manual knob on the front of the unit, the position will continue to be
tracked and stored accurately in the MX1i’s memory.
Integrated Feedback
The local position (% open) as well as the override knob’s selection is transmitted to the GCX control system.
The GCX control system can send a target position to the MX1i, however, if the physical/manual knob is not
in the “Auto” position, the MX1i can not be controlled by the GCX control system.
AUTO
OFFOFF
FORWARDREVERSE
REV FWD

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1. Manual Knob Manaully operate and disable the MX1 outputs, or set to Auto mode.
2. LED’s Indicate forward/reverse output is active.
3. Cover Screws Loosen bottom and remove top screws.
Disconnect power and remove knob (1) prior to removing cover.
4. Knockout 1/2” EMT conduit knock-outs for power in and power out to motor.
5. DC Jack Optional DC power input for backup or manual operation.
6. GrowNET™ Port RJ-45 connection for GrowNET™ digital communication.
External Features
Installation Instructions
DANGER Electrocution Hazard
Disconnected all power sources before servicing or wiring. For continued protection against electric shock ensure the enclosure
is properly grounded at the marked chassis ground terminal. Install all electrical equipment and wiring in accordance with na-
tional and local electric codes. For indoor use in dry locations only (0-80% RH non-condensing.)
Replace serviceable parts only with those recommended by Agrowtek Inc.
DANGER Risque d’électrocution
Débranchez toutes les sources d’alimentation avant l’entretien ou le câblage. Pour une protection continue contre les chocs électriques assurer
l’enceinte est correctement reliée à la borne de terre du châssis marquée. Installez tous les équipements électriques et le câblage conformément
aux codes électriques nationaux et locaux. Pour une utilisation en intérieur dans des endroits secs seulement (0-80% RH sans condensation.)
Remplacer les pièces réparable seulement avec ceux recommandés par Agrowtek Inc.
4
Technology to Help You Grow
AGROWtEK
© Agrowtek Inc. | www.agrowtek.com
MX1i
Reversable Motor Controller
U.S.A.
MADE IN
DANGER! Risk of electric shock.
Disconnect all power sources before opening cover.
Read manual before installing or operating.
Programmable Smart Relays for Automation Control
GrowNET
Link Port
modbus rtu
TM
AUTO
OFFOFF
FORWARDREVERSE
REV FWD
65
4
1
2
3

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4.5”
5.5”
7.0”
6.0”
BACK
2.1”
Dimensions
Mounting holes: dia. 0.201”
DC Power Connections
1 2 3 4 5 6 7 8
DC Power In
Terminal Block RJ45
GrowNET Port
DC Barrel Jack
12 - 24Vdc is required to operate the relay’s processor and contacts which may be supplied via:
a) the GrowNET™ RJ-45 port from a GCX control system or HX8 hub,
b) the 2.1mm DC barrel jack and included power supply, or
c) the Vin terminal block on the circuit board for DIN rail power supplies.

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Remove Cover
1. Loosen set screw on bottom of knob (1/8” at screw driver) and remove the knob.
2. Loosen bottom two cover screws 1/4”.
3. Remove top cover screws.
4. Tilt cover to clear knob shaft and lift o cover.
Mount Enclosure
1. Remove the front cover panel using caution not to damage the LED light pipes.
2. Locate the relay box and mark the mounting hole locations or use the dimensions below.
3. Pre-drill and install anchors if necessary. Keep dust and debris away from the circuit board.
Mounting hardware is not provided; drywall or deck screws of sucient length are recommended.
DO NOT drill holes into the enclosure or enlarge holes. Metal chips from drills can cause short circuits on the PCB.
4
2
3
1
DANGER! Risk of injury or death from electric shock; disconnect all power before wiring or service.
Mounting the Relay
The MX1 intelligent relay is to be securely installed to a vertical wall surface using the four mounting holes
provided in the rear of the enclosure. Removing the front cover is required to mount and wire the relay.

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1. Power Input Input connections for motor power.
2. Motor Outputs Output connections for motor.
3. Motor Fuse Fuse sized according to specications. Replace only with recommended fuse.
4. DC Power Optional DC power connection for backup power.
Internal Component Locations
LINE
NEU
GND
L2
NEU
GND
L1
12
3
4+24Vdc
GND
DC+
DC-
GND
M2
GND
M1
12
3
+24Vdc
GND
4
MX1i-AC
MX1i-DC

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AC Motor Wiring
AC power (120V) must be supplied to the relay by a branch protected circuit (circuit breaker) panel. Power
to the motor is switched by the relay to the output terminals. Limit switches on the motor are wired at the
motor. Conduit is recommended for wiring connections.
LINE
NEU
GND
L2
NEU
GND
L1
+24Vdc
GND
FROM
CIRCUIT BREAKER
TO
MOTOR
AC motors must be wired to include the limit switches in the motor to terminate operation and prevent
damage to a structure in the event the controls have a failure.
FROM
MX1i-AC
GEAR MOTOR
(RIDDER RW-45)
MOTOR GROUND (PE)
A/C TERMINALS
LIMIT SWITCHES
T1 T2
T3 T4
T5 T6
GND
L1
NEU
L2
MOTOR FORWARD (W1)
MOTOR REVERSE (V1)
MOTOR NEUTRAL (U1)

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DC Motor Wiring
DC power must be supplied to the relay by a suitable external DC power supply such as an industrial DIN
rail power supply. Power to the motor is switched by the relay to the output terminals. Limit switches on the
motor are wired at the motor. Conduit is recommended for wiring connections.
DC+
DC-
GND
M2
GND
M1
+24Vdc
GND
FROM
DC POWER SUPPLY
TO
MOTOR

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GrowNET™ Hubs
All GrowNET™ devices are connected using standard CAT5 Ethernet cable with RJ-45 connections.
Devices can be connected directly to the GrowNET™ ports on the bottom of the controller, or through HX8
GrowNET™ hubs. It is typical to simplify cabling by locating hubs centrally in hall ways and rooms allowing
single runs from an 8-port device hub back to a central hub or back to the controller.
HX8 GrowNET ™ hubs expand a single port into eight more ports.
Hubs can be daisy-chained to form a network of up to 100 devices per
GrowNET™ bus. Individually buered port transcievers provide excellent
signal integrity and extended communication strength and range.
Hubs provide up to 1A of power for operating sensors and most relays
directly over the CAT5 cable. A DC jack on the hub provides 24Vdc power
to the ports from the included wall power supply. A terminal block
power option is also available.
DIELECTRIC GREASE
Dielectric grease is recommended on RJ-45 GrowNET™ connections when used in humid environments.
Place a small amount of grease onto the RJ-45 plug contacts before inserting into the GrowNET™ port.
Non-conductive grease is designed to prevent corrosion from moisture in electrical connectors.
• Loctite LB 8423 • Dupont Molykote 4/5 • CRC 05105 Di-Electric Grease
• Super Lube 91016 Silicone Dielectric Grease • Other Silicone or Lithium based insulating grease
NOTICE
GrowNET™ ports use standard RJ-45 connections but are NOT compatible the Ethernet network equipment.
Do not connect GrowNET™ ports to Ethernet ports or network switch gear.
Installation Notes
Refer to the GCX controller manual for details on adding the device to the system.
Connection to GrowControl™ GCX

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Connection to MODBUS RTU
RS-485 / RS-422
Use the LX2 ModLINK to connect MODBUS devices to the GrowNET™ port.
Agrowtek’s intelligent relays may be connected to the LX1 USB AgrowLINK for rmware updates, commu-
nication protocol conguration, addressing and manual operation. Standard drivers automatically install in
Windows for the LX1 USB AgrowLINK. GrowNET API is available for custom software applications.
Connection to USB AgrowLINK
RJ45/CAT5
7 - 24 Vdc
3.3/5Vdc Serial Bus Compatible.
Include required bus terminating resistors per EIA standard.
TX/RX+
TX/RX-
PLC
RS-485
LX1
USBGrowNET™ RJ45