Concoa ALTOS 2 588 Series User manual

ADI 1100-D
Certified ISO 9001
24V ALTOS 2
™
Electronic Switchover
Controller
INSTALLATION AND OPERATING INSTRUCTIONS
Carefully Read These Instructions Before Operating
Carefully Read These
Controls Corporation of America
1501 Harpers Road • Virginia Beach, VA 23454
Telephone [phone] or 757-422-8330 • Fax [phone]
www.concoa.com
June 2022
Revision D

SAFETY
BASIC SAFETY PRECAUTIONS MUST BE FOLLOWED TO REDUCE THE RISK OF
FIRE, ELECTRICAL SHOCK OR INJURY.
• While the 24V Altos 2™ Electronic Switchover Controller (ESC) is dust and
moisture resistant, it is NOT water-proof or completely sealed. It should be
installed where it will not be subjected to rain or high concentrations of dust. Never
pour or spray liquids directly onto the product.
• Install the 24V Altos 2™ (ESC) where the ambient temperature range is between
0°F and 140°F.
• THIS PRODUCT IS NOT INTENDED FOR USE IN EXPLOSIVE
ENVIRONMENTS.
• DO NOT INSTALL THIS PRODUCT IN ANY HAZARDOUS ENVIRONMENT.
• If product appears damaged in any way, do not use and request service from
CONCOA.
USER RESPONSIBILITY
Service to this product should only be performed by CONCOA or an authorized
CONCOA agent. Requests for service may be made through CONCOA CUSTOMER
SERVICE at 1-800-225-0473. Written requests may be made using CONCOA’s FAX
number at 1-757-422-3125 or CONCOA’s E-MAIL at [email protected]
CONCOA accepts no responsibility for damage or injury if this product is modified in
any way.
CONCOA assumes/accepts no liability or responsibility for damage to individuals or
equipment that may occur when using this product

1
Index
Description of Product .........................................................................................................2
Power Requirements ............................................................................................................2
Device Output Relay Specifications ....................................................................................2
Understanding Device Operation.........................................................................................3
Mounting Requirements.......................................................................................................4
Installation Instructions........................................................................................................5
Connecting External Input Devices to the 24V Altos 2™ Electronic Switchover
Controller (ESC) ..................................................................................................................5
Circuit Board Styles.............................................................................................................5
Circuit Board Terminal Block Locations.............................................................................6
Table 1 – Terminal Block & Switch Descriptions...............................................................7
Hookup of Switching Device & Typical Inputs, Circuit Board Style A (“CV1”)...............8
Hookup of Switching Device & Typical Inputs, Circuit Board Style B (“CE”) .................9
Table 2 – Cable Information..............................................................................................10
Connecting Device Outputs ...............................................................................................11
Muting Audible Alarm.......................................................................................................11
Configuration using the LCD Screen.................................................................................12
Settings Menu ....................................................................................................................13
Source Settings...................................................................................................................14
Replace Set Point .......................................................................................................15
Units of Measure........................................................................................................16
System Settings..................................................................................................................17
Set Source Offset .......................................................................................................18
Set Source Max ..........................................................................................................19
Deadband ...................................................................................................................20
Audible Mode ............................................................................................................21
Power Save Mode ......................................................................................................22
Keypad Lockout.........................................................................................................23
Contrast......................................................................................................................23
Test Mode ..................................................................................................................24
Reset...........................................................................................................................25
About..........................................................................................................................26
Troubleshooting .................................................................................................................27
Warranty Information ........................................................................................................28
CE Declaration of Conformity for CE Approved Models .................................................29

2
DESCRIPTION OF PRODUCT
The CONCOA 24V Altos 2™ Electronic Switchover Controller (ESC), when connected
to a switching device such as CONCOA’s 5851100 Series pneumatic switchover
controller, signals the switching device to act based on 4-20mA inputs received from
external monitoring devices such as electronic weight scales or pressure transducers. The
readings from the 4-20mA input signals will be displayed locally on a 2.9” LCD screen
for up to 2 channels. The statuses of all inputs are also displayed locally with high
visibility multicolor LEDs that are green in the normal condition and turn red in the alarm
condition. The output signals to the switching device are sent through three dry contact
relay outputs, one for each input channel, and one for a master alarm.
POWER REQUIREMENTS
Input Voltage: External Power Supply
Universal input voltage 96-264 VAC, 50/60Hz.
Power Consumption: 2.5 watts
DEVICE OUTPUT RELAY SPECIFICATIONS:
Contacts: Normally Open/ Normally Closed Dry Contact
Contact Rating: 24 volts DC @ 1 amp Max.

3
UNDERSTANDING DEVICE OPERATION
Figure 1
Figure 1 shows the location of the various access parts, buttons, and indicators for the 24V Altos
2™ ESC. The 24V Altos 2™ ESC has a universal power supply.
Input signals coming from external devices such as electronic weight scales or pressure
transducers are connected to terminal blocks in the 24V Altos 2™ ESC (see Fig. 3) via
individual wires through a 1/2” conduit connection in the bottom of the enclosure.
The 24V Altos 2™ ESC provides output relay signals (dry contacts) to indicate the state of
sources 1& 2 and the master alarm. The master alarm is engaged when either source is in alarm
with signals brought out through terminal connectors on 3 terminal blocks (see Fig.3). Each
terminal block contains a common voltage input, a normally-closed contact, and a normally-open
contact.
Output relay signals are routed from the 24V Altos 2™ ESC terminal blocks via individual wires
through a 1/2” conduit connection on the bottom of the enclosure.
Figure 1 shows a view of the front panel which is laid out with two status lights representing
sources 1 and 2. The indicator lights are bi-colored LEDs (a single LED glows red or green) A
green LED indicates a normal condition. A red LED indicates an alarm condition. A flashing
green LED indicates standby condition.
On the left side of the front panel, a speaker is used to provide an audible indication of an alarm
condition. The alarm silence button in the upper right portion of the front panel allows the
operator to silence the audible alarm even while an alarm condition still exists.
In the center of the front panel is a 2.9” diagonal LCD screen used for displaying the status of
sources 1 and 2 as well as system configuration menus. On the right side of the screen are four
directional arrows used for navigating the configuration menu.
The 24V Altos 2™ ESC allows for a 4-20mA input signal from any device (e.g., transducer,
scale, etc.) for channel monitoring. The source configuration is selectable via the system menu.

4
The 4-20mA inputs are accessed via a terminal block containing the +24vdc supply line and the
signal return for each source. The source pressure or scale weight is displayed on the LCD screen
and, depending on the source alarm configuration and set point, the source LED with either be
green (normal state), flashing green (standby state), or red (alarm state).
If there are no alarm conditions, the 24V Altos 2™ ESC will show a green indicator next to the
status being monitored. When an alarm condition occurs, the color changes from green to red.
At the same time, the audible buzzer in the 24V Altos 2™ ESC, if enabled, will begin to sound.
The LCD screen will display the current source pressure or scale weight depending on the
source’s configuration. The set of contacts representing this alarm condition will alarm in the
relay output section of the 24V Altos 2™ ESC.
MOUNTING REQUIREMENTS
Figure 2

5
INSTALLATION INSTRUCTIONS
After mounting the 24V Altos 2™ ESC to the wall, wire any monitored devices through the
conduit connections and to the input terminal blocks (see Figures 3, 4, Table 1). Connect the
switching device (e.g., CONCOA 5851100 Series pneumatic switchover controller) to the relay
output terminal blocks (see Figures 3, 4, Table 1).
Turn the 24V Altos 2™ ESC on by plugging the unit directly into a wall outlet and turning the
power switch on the left side of the unit to the on position. The system may be tested once it is
connected to an external device by tripping the external inputs, causing the corresponding input
LED to turn red.
CONNECTING EXTERNAL INPUT DEVICES TO THE
24V ALTOS 2™ ELECTRONIC SWITCHOVER CONTROLLER
(ESC)
The 24V Altos 2™ ESC is designed to interface with up to 2 external 4-20 mA input signals
(transducers by default). The external device wires (+24Vdc out, signal in) are brought in
through a conduit connector on the left side on bottom of the box, and connect to terminal blocks
on the left hand side of the circuit board. Figures 3 & 4 and Table 1 outline how to connect
devices to the 24V Altos 2™ ESC.
The recommended cable for this assembly is 18-26 AWG wire (Alpha # 1176C or equivalent).
The length of each cable should be limited to 500 feet for pressure transducers and 1500 feet for
dry contact inputs. Table 2 shows CONCOA part numbers for cables that are available to
connect to various devices. Contact CONCOA for details.
After cutting the cable to length, remove the outer jacket to expose approximately 3/4 inch of the
internal conductors on both sides of the cable. Strip away 1/4-inch of the insulation on each of
the conductors, unscrew the terminal block, insert wire, and tighten screw. Test to ensure the
wire does not pull out of the connector.
CIRCUIT BOARD STYLES
Your 24V Altos 2™ Electronic Switchover Controller will have one of the following two styles
of circuit board. The style will be indicated by “CV1” or “CE” printed on the product nameplate
and box label:

6
Figure 3

7
Table 1

8
HOOKUP OF SWITCHING DEVICE & TYPICAL INPUTS
Figure 4 for Circuit Board Style A (“CV1”)