AGROWTEK MX3i Intelligent Reversing Motor Controller Instruction Manual

INSTRUCTION MANUAL
MX3i

Intelligent Reversing Motor Controller for 230V 1-Phase & 3-Phase AC Motors

Specifications

KEEP THESE INSTRUCTIONS

Introduction

M31i intelligent motor controllers are designed to operate reversing gear motors for ridge vents, shade curtains, roll-up side walls and other similar applications. The MX3 model is designed to operate 3-phase AC motors only.
The relays in the MX3i are designed in interlocking circuitry such that it is physically impossible to activate both the forward and reverse direction at the same time, or to directly short any phases to each other 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 required 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 MX3i by the GCX control system on the device confi guration page (see confi guration.) The position is stored in the MX3i’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 MX3i’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 MX3i, however, if the physical/manual knob is not in the “Auto” position, the MX3i can not be controlled by the GCX control system.

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 national 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.

External Features

1. Manual Knob Manaully operate and disable the MX3i 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.

Dimensions

Mounting holes: dia. 0.201”

Mounting the Relay

The MX3i 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.

Remove Cover

1. Loosen set screw on bottom of knob (1/8” fl 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 off 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 suffi cient length are recommended.

DANGER! Risk of injury or death from electric shock; disconnect all power before wiring or service.
DO NOT drill holes into the enclosure or enlarge holes. Metal chips from drills can cause short circuits on the PCB.

Internal Component Locations

1. Power Input  Input connections for motor power.
2. Motor Outputs  Output connections for motor.
3. Motor Fuse  Fuse sized according to specifi cations. Replace only with recommended fuse.
4.  DC Power  Optional DC power connection for backup power.

DC Power Connections

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.

Motor Wiring

AC power (230V) 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 should be connected to the limit switch terminals on the PCB.
Conduit is recommended for wiring connections.

**** Use 300V or higher rated multi-conductor cable for limit switch connections if run in conduit with AC conductors.

Single Phase Connection

Single phase 115-230Vac can be switched on the MX3i motor controller for single phase motors with a forward and reverse lead. The controller will switch AC power from L1 to either A or C terminal for forward or reverse. All motor outputs are off when the motor controller is stopped.

Three Phase Connection
Three phase 230Vac can be switched on the MX3i motor controller. The controller will swap phases A and C to reverse the motor. All phases are off when the motor controller is stopped.

Limit Switch Wiring
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 motors are over- run.
**** The MX3 will not operate the motor relays unless the limit switches are properly connected or terminals jumpered unless the inputs are inverted as described below.

Limit switch inputs operate using the DC input voltage (12-24Vdc) supplied to the switch and returned to the input terminal.
Limit Switch Defaults
Limit switches are expected to be Normally Closed in the normal range of operation and Open when the limit is met. The MX3 can be confi gured to operate in the opposite manner with the limit switches in the Normally Open position during normal operation and Closed when the limit is met.
Invert Limit Switch Inputs
To ‘invert’ the limit switches to “normally open” type (limit when closed) press the reset button momentarilly.
The limit switches will now work in the opposite manner.

Connection to GrowControl™ GCX

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.

Refer to the GCX controller manual for details on adding the device to the system.
GrowNET™ Hubs
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 buff 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.

Installation Notes

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.
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

Connection to USB AgrowLINK

Agrowtek’s intelligent relays may be connected to the LX1 USB AgrowLINK for fi rmware updates, communication protocol confi 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 MODBUS RTU
RS-485 / RS-422
Use the LX2 ModLINK to connect MODBUS devices to the GrowNET™ port.

3.3/5Vdc Serial Bus Compatible.
Include required bus terminating resistors per EIA standard.

Supported Commands

0x01 Read Coils
0x03 Read Multiple Registers
0x05 Write Single Coil
0x06 Write Single Register
0x15 Write Multiple Coils
A request to use a function that is not available will return an illegal function error (0x01).

Register Types
Data registers are 16 bits wide with addresses using the standard MODICON protocol. Floating point values use the standard IEEE 32-bit format occupying two contiguous 16 bit registers. ASCII values are stored with two characters (bytes) per register in hexadecimal format. Coil registers are single bit values which control and indicate the status of a relay; 1 = on, 0 = off .
MODBUS Coil Registers

A request to read or write coils that are not available will return an illegal address error (0x02.)
MODBUS Holding Registers

A request to read or write a register that is not available will return an illegal address error (0x02).

Technical Information

Troublshooting
Relays are not activating, no power LED on PCB
Ensure the relay input power has 12-24Vdc and are correctly wired for polarity. A dimliy lit red LED should illuminate when the circuit board has power.

Maintenance & Service

Exterior Cleaning Exterior may be wiped with a damp cloth wish mild dish detergent, then wiped dry. Disconnect power before cleaning the enclosure to prevent electrical shock.

Storage and Disposal

Storage Store equipment in a clean, dry environment with ambient temperature between10-50°C. Disposal This indsutrial control equipment may contain traces of lead or other metals and environmental contaminants and must not be discarded as unsorted municipal waste, but must be collected separately for the purpose of treatment, recovery and environmentally sound disposal. Wash hands after handling internal components or PCB’s.

Warranty

Agrowtek Inc. warrants that all manufactured products are, to the best of its knowledge, free of defective material and workmanship and warrants this product for 1 year from the date of purchase. This warranty is extended to the original purchaser from the date of receipt. This warranty does not cover damages from abuse, accidental breakage, or units that have been modifi ed, altered, or installed in a manner other than that which is specifi ed in the installation instructions. Agrowtek Inc. must be contacted prior to return ship- ment for a return authorization. No returns will be accepted without a return authorization. This warranty is applicable only to products that have been properly stored, installed, and maintained per the installation and operation manual and used for their intended purpose. This limited warranty does not cover products installed in or operated under unusual conditions or environments including, but not limited to, high humidity or high temperature conditions. The products which have been claimed and comply with the aforementioned restrictions shall be replaced or repaired at the sole discretion of the Agrowtek Inc. at no charge. This warranty is provided in lieu of all other warranty provisions, express or implied. It is including but not limited to any implied warranty of fi tness or merchantability for a particular purpose and is limited to the Warranty Period. In no event or circumstance shall Agrowtek Inc. be liable to any third party or the claimant for damages in excess of the price paid for the product, or for any loss of use, inconvenience, commercial loss, loss of time, lost profi ts or savings or any other incidental, consequential or special damages arising out of the use of, or inability to use, the product. This disclaimer is made to the fullest extent allowed by law or regulation and is specifi cally made to specify that the liability of Agrowtek Inc. under this limited warranty, or any claimed extension thereof, shall be to replace or repair the Product or refund the price paid for the Product.

© Agrowtek Inc.
www.agrowtek.com 
Technology to Help You Grow™

References

• Agrowtek Inc. :: Grow Controls for Greenhouses, Hydroponics & Indoor Growing

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