User Manual

ST140

Table of Contents

Specifications

Consumer Safety Information

Description of Operation

Installation Models

Operating Instructions - Web App

Operating Instructions - Physical Button

Error Codes

Specifications

Model	ST140_3G	ST140_5G
Cellular Modem	2G/3G	LTE CATM1 (5G)
Cellular Networks	AT&T & T-mobile	AT&T
Power Supply	15 VDC
Peak Electrical Consumption	25W
Wiring	Minimum 20 AWG, Twisted Pair, Shielded Cable
Operating Temperatures	-40°C to 80°C (-40°F to 176°F)
Weatherproofing	IP66, NEMA 1,2,3,3R,4,4X,12,13
Enclosure Material	PBT/PC Blended Plastic
UL Rating	UL94V-0 Flammability Rating
Sunlight Protection	UV Stabilized
ON/OFF Button	Included
Relay 1	6A, 250VAC, 85°C
Analog Sensor 3: Relay 1 Feedback	Power Output: 30mA @ VIN or 15mA @ 12.5V Sensor Inputs: 4-20mA, 0-10VDC, Contact Closure
Relay 2	6A, 250VAC, 85°C
Analog Sensor 4: Relay 2 Feedback	Power Output: 30mA @ VIN or 15mA @ 12.5V Sensor Inputs: 4-20mA, 0-10VDC, Contact Closure
Analog Sensor: Pressure Sensor 1	Power Output: 30mA @ VIN or 15mA @ 12.5V Sensor Inputs: 4-20mA, 0-10VDC, Contact Closure
Analog Sensor 2: Pressure Sensor 2 (Accessory Port)	Power Output: 1A @ 12.5V Sensor Inputs: 4-20mA, 0-10VDC, Contact Closure
Flow Meter	Optically Isolated Pulse Input 10mA @ 12VDC
Digital Input 1: HOA Switch Location	Contact Closure Pulled Up to VIN @ 12mA
Digital Input 2: Open	Contact Closure Pulled Up to VIN @ 12mA
Digital Input 3: Open	Contact Closure Pulled Up to VIN @ 12mA
RS485/RS232: VFD Communication	Available: Contact Altrac Support

Altrac is continually updating and improving products; specifications are subject to change without prior notice.

Consumer Safety Information

This is the safety alert symbol. This symbol alerts you to potential hazards that can kill or hurt you or damage the ST140 Pump Station or associated equipment. 

Safety Behavior and Practices

Installing the Pump Station should only be done by a licensed electrician following local codes. Improper installation could result in shock or fire hazards.

• Do not install the ST140 in a location where water is frequently present. The enclosure is IP67 protected, but water can still enter the enclosure if pooled on the surface or in a connector. 

• Do not use this device if any part has been underwater. Immediately call a qualified service technician to inspect the device and to replace any part of the control system that is damaged.

• This device (when equipped with PW200) uses a three-prong plug for your protection against shock hazards and should be plugged directly into a properly grounded three-prong receptacle. Do not cut or remove the ground prong from this plug. 

• Any alteration to the device or its controls can be dangerous and will void the warranty. 

Safety Features

The ST140 is designed to resist electrical interference if a shielded cable is used.

• The ST140 downloads the latest settings and will reload those settings if power is cut. For example, if the ST140 loses cellular connection, it will continue running according to its schedule. 

• The ST140 utilizes automotive grade components to resist vibration and heat damage. 

Please find installation instructions for the Altrac Pump Station.

Description of Operation

The ST140 Pump Station allows you to remotely monitor and control VFD, Soft Start, Contactor and Relay driven pumps.  Each ST140 contains a cellular modem with connection to the Altrac Cloud. Using the Altrac Web App you can control your pump on your smartphone, tablet, or desktop computer.  The ST140 also has a physical button you can use to turn the pump on and off when you don’t have access to a smart device.

The Pump Station monitors and controls up to two pumps.  It is designed to control a primary irrigation pump and a secondary pump such as for fertigation or sulfur burner.  The ST140 monitors pump state(s), HOA switch position, a flow meter, and two pressure sensors for irrigation line pressure.

The Pump Station sends and retrieves data from the cloud every 10 minutes while connected to a power source.  During pump operation, the Station updates every 5 minutes or less.  If a sensor value changes dramatically the Station will update immediately.

Features

Software Package	SW140: Basic Software	SW141: Pump Scheduling, DCL, Fertigation	SW130: Flow Meter Software and Connectivity	SW120: Pressure Sensor Monitoring
Connection Frequency	Every 10 minutes when pump is OFF. Every 5 minutes or less when pump is ON.
Pump Remote ON/OFF	Included
Pump Scheduling Software		Included
Pump Device Control Logic		Included
Pump Fertigation Control		Included
Pressure 1 (PSI)	Included
Pressure 2 (PSI)		Included		Included
Pressure Differential		Included		Included
Flow Meter: Instant Flow Rate and Cumulative			Included
Webapp Access	Included	Included	Included	Included
Alerts: Text, Email, Phone	Included	Included	Included	Included
Reports: Daily, Weekly, Yearly	Included	Included	Included	Included

Installation Models

Standard Installation  

Advanced Installation (SW142)

Operating Instructions - Web App

Operating Instructions - Physical Button

In order to control the ST140 in situations where you have no access to the web app, you can use the physical button located on the device. 

Action	Pump 1 State	Pump 2 State	Mode	Outcome
Press < 1 second	Any	Any	Any	Device will publish telemetry to the cloud and receive queued settings.
Press > 1 second and Press < 6 seconds	Pump ON	Any	Manual	Pump 1 and 2 OFF.
Press > 1 second and Press < 6 seconds	Pump ON	Any	Automatic	Pump 1 and 2 OFF. Pump auto setting changes to manual mode.
Press > 1 second and Press < 6 seconds	Pump OFF	Any	Manual	Pump 1 ON. Pump 2 OFF. Runs until shutoff manually.
Press > 1 second and Press < 6 seconds	Pump OFF	Any	Automatic	Pump 1 ON. Pump 2 OFF. Pump auto setting changes to manual mode.
Press and Hold > 20 seconds	Any	Any	Any	Power Cycles the Cellular Modem

Error Codes

The Altrac station has the ability to check its own operation continuously. If a fault occurs, an error code will display in the web app. Please identify the code displayed when inquiring about service. 

Altrac strives to make issues fixable by anyone. However, some of the checks below may need to be completed by a qualified service technician. Call a service technician if you have any doubts or reservations about performing the remedy yourself.

Error Code Table

Error	Fault	Remedy
01	Altrac station not receiving power.	Check the power supply and wiring to the Power Terminal.
02	Altrac is not connected to the cloud.	Check that the Altrac has power. Check signal strength and quality for the device is sufficient. Check antenna cables are connected correctly to the circuit board. Move the device to gain better cellular reception. Add an external antenna for better cellular reception.
10	Relay 1 is not operating correctly. Equipment should be ON.	Check Relay 1 status LED lights up during use. Flip physical switch above Relay 1 and check for lit LED. Check wiring between Relay 1 terminal and VFD or contactors.
15	Relay 2 is not operating correctly. Equipment should be ON.	Check Relay 2 status LED lights up during use. Flip physical switch above Relay 2 and check for lit LED. Check wiring between Relay 2 terminal and VFD or contactors.
20	Relay 1 Feedback Not Received. Primary Pump should be ON.	Check Relay 1 Feedback LED is ON when equipment is ON. Check wiring between Relay 1 Feedback and VFD or current switch. Check current switch (if applicable) is dialed in correctly. Check VFD/SoftStarter is programmed to close Run Signal relay when running.
21	Relay 1 Feedback is under minimum current.	Check Relay 1 Feedback LED is ON when sensor is installed. Check wiring between Relay 1 Feedback and sensor. Check calibration in the app matches sensor specifications.
22	Relay 1 Feedback is over maximum current.	Check Relay 1 Feedback LED is ON when sensor is installed. Check wiring between Relay 1 Feedback and sensor. Check calibration in the app matches sensor specifications.
23	Relay 1 Feedback is over maximum voltage.	Check Relay 1 Feedback LED is ON when sensor is installed. Check wiring between Relay 1 Feedback and sensor. Check calibration in the app matches sensor specifications.
30	Relay 2 Feedback Not Received. Secondary Pump should be ON.	Check Relay 2 Feedback LED is ON when equipment is ON. Check wiring between Relay 2 Feedback and VFD or current switch. Check current switch (if applicable) is dialed in correctly. Check VFD/SoftStarter is programmed to close Run Signal relay when running.
31	Relay 2 Feedback is under minimum current.	Check Relay 2 Feedback LED is ON when sensor is installed. Check wiring between Relay 2 Feedback and VFD or current switch. Check calibration in the app matches sensor specifications.
32	Relay 2 Feedback is over maximum current.	Check Relay 2 Feedback LED is ON when sensor is installed. Check wiring between Relay 2 Feedback and VFD or current switch. Check calibration in the app matches sensor specifications.
33	Relay 2 Feedback is over maximum voltage.	Check Relay 2 Feedback LED is ON when sensor is installed. Check wiring between Relay 2 Feedback and VFD or current switch. Check calibration in the app matches sensor specifications.
40	Analog Sensor 1 is under minimum current.	Check Analog Sensor 1 LED is ON when sensor is installed. Check wiring between Analog Sensor 1 and sensor. Check calibration in the app matches sensor specifications.
41	Analog Sensor 1 is over maximum current.	Check Analog Sensor 1 LED is ON when sensor is installed. Check wiring between Analog Sensor 1 and sensor. Check calibration in the app matches sensor specifications.
42	Analog Sensor 1 is over maximum voltage.	Check Analog Sensor 1 LED is ON when sensor is installed. Check wiring between Analog Sensor 1 and sensor. Check calibration in the app matches sensor specifications.
50	Analog Sensor 2 (Accessory Port) is under minimum current.	Check Analog Sensor 2 (Accessory Port) LED is ON when sensor is installed. Check wiring between Analog Sensor 2 (Accessory Port) and sensor. Check calibration in the app matches sensor specifications.
51	Analog Sensor 2 (Accessory Port) is over maximum current.	Check Analog Sensor 2 (Accessory Port) LED is ON when sensor is installed. Check wiring between Analog Sensor 2 (Accessory Port) and sensor. Check calibration in the app matches sensor specifications.
52	Analog Sensor 2 (Accessory Port) is over maximum voltage.	Check Analog Sensor 2 (Accessory Port) LED is ON when sensor is installed. Check wiring between Analog Sensor 2 (Accessory Port) and sensor. Check calibration in the app matches sensor specifications.
70	Switch is in OFF position and pump is scheduled to be ON.	Check that the HOA swich on the pump station is in the Auto position. Check wiring between Digital Input 1 and the HOA switch.

Version 1: Metal Enclosure with limited functionality (2019-2020)

Version 2: Plastic Enclosure with full functionality (2020-Present) 

If you require additional assistance, please contact your Altrac representative.