Features

Dynamic Database

• Shared memory allows creation of supported objects as required (up to memory max, or 128 object limit, whichever is reached first)
• All models provide 32K of database memory and 28K of trend memory
• Typical Object Configuration table shown below

Protocol

• BACnet® - MS/TP (EIA-485)

Motor Control

• Standard VAV and optimized motor control algorithms stored in firmware
• Numerous standard application codes can be downloaded from the Reliable Controls®website
• Optional user-programmed algorithm

Engineered Enhancements

• Onboard End Of Line (EOL) switch with LED indication provides easy EOL configuration and visual verification
• Remote addressing and software selectable inputs allow detailed configuration to be completed over the network
• Robust MRAM non-volatile memory preserves trend data on power cycle
• BACnet COV support provides optimized network sharing

Control-BASIC™ Programs

• 8500 bytes programmable control strategy in a readable, BASIC-like language
• 3200 bytes per program

Inputs

• Universal ranges
• Soft-selectable 0-10 VDC, 4-20 mA, thermistor / dry contact

Outputs

• Universal ranges
• 0-12 VDC or TRIAC, model dependent

Variables

• Selectable standard and custom ranges, as well as fixed or program-driven values

PID Loops

• Standard P, PI, or PID controllers for closed loop control

Single-Point Trend Logs

• Samples created at polled, COV, or triggered intervals
• Default 128 samples, configurable to allow trending over a longer period of time

Multipoint Trend Logs

• Each Trend Log includes 8 points at polled or triggered intervals
• Default 128 samples, configurable to allow trending over a longer period of time

Runtime Report

• Records the total On time and the total number of transitions, as well as daily transitions for every binary point
• A 50-sample runtime log is optional for each binary point

System Groups

• Allows related points to be grouped onto one display
• 80 points/group

Schedules

• 7 On/Off times for each weekday or exception

Calendars

• Days of the year designated as holidays

Arrays

• Up to 128 elements in a one-dimensional array

Tables

• For creating custom input ranges and Control-BASIC™ lookup tables

Custom Units

• 8 analog engineering units
• 8 binary engineering units
• 8 multistate units with 8 states, 32-characters each

SMART-Net™ Port

• Networks up to 4 SMART-Sensors™

32 Network In Points

16 Network Out Points

• The total maximum number of writes and shares to other devices

Warranty

• 5 years

Certification

• BTL Listed (B-BC)
• UL916 Listed
• CFR47 Part 15/B
• CE

Processor & Memory

• 66 MHz, high-performance, 32-bit embedded microcontroller with onboard Flash memory
• Controller database, values, log data, and configuration held in robust non-volatile memory
• Operating System firmware easily updated at any time over the network

Supply Voltages

• 24 VAC ±10% 32 VA max. 50/60 Hz
• 24 VDC ±10% 12 W max.
  Note: MPA-12 and MPA-111 require 24 VAC only to support internal power to TRIACs

Communications

• MS/TP
  • EIA-485 @ 76.8 Kbps max.
  • Auto-baud detection
• SMART-Net™
  • 4 SMART-Sensors™ max.
  • RJ-11 port on all models
  • 4 wire terminal connector on all models

Universal Inputs

• 12-bit A/D converter
• Soft selectable: 0-10 VDC, 4-20 mA, 
  thermistor/dry contact
• Impedance:
  3M Ω on 0-10 VDC range
  250 Ω on 4-20 mA range
  20k Ω on thermistor range
• Pulse counting up to 40 Hz
  (supports flow meters)
• 24 VAC over-voltage protection

Universal Outputs

• 10-bit D/A converter
• Analog: 0-12 VDC
• Binary: 0/12 VDC
• Output power: 75 mA @ 12 VDC
• 24 VAC over-voltage and short protection

TRIAC Outputs

• 24 VAC @ 0.5 A

SETUP-Tool™

• SETUP-Tool™ optional for MS/TP configuration

Dimensions

• With actuator:
  22.7 cm L x 10.1 cm W x 7.7 cm H
  (8 15/16" L x 3 15/16" W x 3" H)
• Without actuator:
  19.9 cm L x 10.1 cm W x 7.3 cm H
  (7 13/16" L x 3 15/16" W x 2 7/8" H)
• With MPA-C:
  22.7 cm L x 15.0 cm W x 7.7 cm H
  (8 15/16" L x 5 7/8" W x 3" H)

Mounting

• Supplied with #8 screw
• Compatible with 3/8" to 1/2" damper blade shaft

Weight

• 0.7 kg (1.8 lb.)

Ambient Limits

• Operating: 0 ºC to 50 ºC (32 ºF to 122 ºF)
• Shipping: -40 ºC to 60 ºC (-40 ºF to 140 ºF)
• Humidity: 10% to 90% RH non-condensing

Velocity Sensor

• ±0-500 Pa (0-2" WC)
• Maximum zero point accuracy 0.1 Pa (0.0008" WC)
• Resolution: 0.122 Pa (0.0005" WC)
• Span accuracy 3% of reading

Actuator

• Torque 45 in-lb (5 Nm)
• Brushless D.C.

Flow Sensor

• 5.2mm OD barbed fittings
• Suitable for 1/4" standard pneumatic control tubing

Enclosure

• ABS
• UL94-5V