Technical Specifications
Table 8: VMA16 Controllers
MS-VMA1610-0U
: 1 UI VMA (Cooling Only)
MS-VMA1610-1U
: 1 UI VMA (Cooling Only)
MS-VMA1620-0U
: 1 UI, 3 BO, 2 CO VMA (Cooling with Reheat and Fan Control)
Note: MS-VMA1620-1U
: 1 UI, 3 BO, 2 CO VMA (Cooling with Reheat and Fan Control) Only
-xU models of these controllers are available. These models are for smoke control applications
only. If your application is not for a UL 864 UUKL 10th Edition smoke control application, please
review the product selection before installation.
Product Code Numbers
24 VAC (nominal, 20 VAC minimum/30 VAC maximum), 50/60 Hz, power supply Class 2 (North
America), Safety Extra-Low Voltage (SELV) (Europe)
Supply Voltage
10 VA typical, 14 VA maximum
Note:
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 Consumption
Operating:
0 to 50°C (32 to 122°F)
Storage:
-40 to 70°C (-40 to 158°F)
Ambient Conditions
Inputs/Outputs: 6.3 mm (1/4 in.) spade lugs
FC Bus, SA Bus, and Supply Power: 4-Wire and 3-Wire Pluggable Screw Terminal Blocks
Sensor Port: RJ-12 6-Pin Modular Jacks
Terminations
DIP switch set; valid controller device addresses 4–127
(Device addresses 0–3 and 128–255 are reserved and not valid controller addresses.)
Controller Addressing
BACnet MS/TP, RS-485:
3-wire FC Bus between the supervisory controller and controllers
4-wire SA Bus between VMA controller, network sensors and other sensor/actuator devices;
includes a terminal to source 15 VDC supply power from VMA to SA Bus devices
1
Communications Bus
VMA1610:
1 - Universal Input: Defined as 0–10 VDC, 0–600k ohm, or Binary Dry Contact
VMA1620:
1 - Universal Input: Defined as 0–10 VDC, 0–600k ohm, or Binary Dry Contact
3 - Binary Outputs: Defined as 24 VAC Triac (internal power source)
2 - Configurable Outputs: Defined as 0–10 VDC or 24 VAC Triac BO
Input and Output Capabilities
Analog Input:
15-bit resolution
Analog Output:
16-bit resolution and ±200 mV in 0–10 VDC applications
Analog Input/Analog Output
Resolution and Accuracy
17
VMA1610 and VMA1620 Variable Air Volume Controllers Installation Instructions
