Technical specifications
Table 10: VMA1930 Controllers
Product Code Numbers
MS-VMA1930-0:
32-bit, Integrated VAV Controller/Actuator/Pressure Sensor - DPT, 3 UI
and 3 BO, 2 CO, 24 VAC, and SA Bus, Includes 6-pin Sensor Port for use with TE-7xx Series
Non-Communicating Sensors and two Ethernet Ports for BACnet/IP Communications
Communications Protocol
BACnet/IP
Engines Supported
NAE55, NAE85, ODS
Power Requirement
24 VAC (nominal, 20 VAC minimum/30 VAC maximum), 50/60 Hz, Power Supply Class 2
(North America), Safety Extra-Low Voltage (SELV) (Europe)
Power Consumption
10 VA typical, 14 VA maximum
Note:
The VA rating does not include any power supplied to the peripheral devices
connected to Binary Outputs (BOs) or Configurable Outputs (COs), which can
consume up to 12 VA for each BO or CO, for a possible total consumption of an
additional 60 VA (maximum).
Power Source
+15 VDC power source terminals provide 35 mA total current. Quantity 1 located in
Universal IN terminals - for active (3-wire) input devices
Ambient Conditions
Operating:
0°C to 50°C (32°F to 122°F)
Storage:
-40°C to 70°C (-40°F to 158°F)
Terminations
Inputs/Outputs 6.3 mm (1/4 in.) Spade Lugs
SA Bus, and Supply Power: 4-Wire and 2-Wire Pluggable Screw Terminal Blocks
SA Bus Modular Ports: RJ-12 6-Pin Modular Jacks
Controller Number
Set of 3 Rotary switches used to set controller number between 001 and 999.
Communications Bus
Two Ethernet ports; 10/100 Mbps; 8-pin RJ-45 connector
SA Bus: 0.6 mm (22 AWG) stranded, 4-wire (2-twisted pairs) shielded cable recommended
from the VMA controller for network sensors and other sensor/actuator devices; includes
a terminal to source 15 VDC supply power from the VMA1930 to SA Bus devices
Note:
For more information, refer to the
MS/TP Communications Bus Technical
Bulletin (LIT-12011034)
or the
Metasys IP Networks for BACnet/IP Controllers
Configuration Guide (LIT-12012458)
Processor
RX63N 32-bit Renesas microcontroller
Memory
16 MB serial flash memory and 8 MB of SDRAM
Universal Input (UI) Resolution/
Configurable Output (CO) Accuracy
UI Analog Input Mode:
15-bit resolution on UIs
CO Analog Output Mode :
0–10 VDC ± 200 mV
Air Pressure Differential Sensor
Range: -1.5 in. to 1.5 in. W.C.
Performance Characteristics:
Accuracy: ±1.3% Full Span Maximum. Combined error due to offset, non-linearity, and
temperature variation. Combined error due to offset, non-linearity, and temperature
variation. (±0.039 in. W.C.)
Typical accuracy at zero (null) pressure is ±0.02 in. W.C. Includes error due to non-
linearity. (if provided)
Actuator Rating
4 N·m (35 lb·in) minimum shaft length = 44 mm (1-3/4 in.) (if provided)
Mounting
Mounts to damper shaft using single set screw and to duct with single mounting screw
Dimensions
(Height x Width x Depth)
165 mm x 125 mm x 73 mm (6.5 in. x 4.92 in. x 2.9 in.)
Center of Output Hub to Center of Captive Spacer:
135 mm (5-5/16 in.)
Weight
0.65 kg (1.45 lb)
VMA1930 VAV Controller Installation Guide
19