Automated Logic U141v+ Instrukcje techniczne - Strona 2

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Using the U1 4 1v+

The U141v+ is part of a family of control

modules designed specifically for VAV

terminal box applications using an improved

algorithm for local flow control. The U141v+

has:

• one digital output

• two LogiStat inputs

• two general purpose inputs

• one analog output

The U141v+ module also provides an

integrated flow sensor and Belimo LM-24

actuator and is designed to be mounted

directly on the VAV box damper shaft.

The U141v+ communicates with other U-Line

modules on the Unet using BACnet MS/TP

protocol over EIA-485 twisted pair wire. The

U141v+ module communicates with the

CMnet through Unet Interface modules

(UNIs). The UNI must use one of the following

module drivers to communicate with the

U141v+:

• For WebCTRL systems, the DRV_UNI16

or DRV_UNI32 module driver

• For SuperVision systems, the U1M,

U3M, U5M, or UNM module driver

If communication with the UNI is lost, the

U141v+ can be programmed with a backup

default algorithm to maintain space

temperature. Refer to the appropriate UNI

module driver technical instruction for

instructions on setting up this default

algorithm.

The U141v+ module is programmed with a

Graphic Function Block (GFB), which is

transferred into the UNI. Depending on the

software you are using, GFBs written for U-

Line modules must be created in Eikon for

WebCTRL or Eikon using the Zone GFB

option; refer to the Eikon for WebCTRL User's

Revised 8/14/02 • U141v+

Guide or the Eikon User's Guide for more

information.

NOTE To operate this module based on a

schedule, the UNI must be networked with a

gateway module.

U141v+ modules have been designed to meet

low-end, high-volume terminal control

applications. As a result, time-critical

applications (such as short time delays and

trend intervals of less than one minute)

should not be used with these modules. ALC

recommends that all time delay functions and

trend intervals in U141v+ FBs be set to at least

one minute.

CAUTION If the equipment is used in a

manner not specified by the manufacturer,

the protection provided by the equipment

may be impaired.

Specifications

Power 24VAC ±10%, 7.5VA, 50-60Hz.

Motor torque 35ft.lb., runtime 100 seconds.

Inputs two inputs configurable for

thermistor, 0 to 5VDC, or dry contact; two

LogiStat inputs.

Input Resolution 10 bit.

Digital Outputs one relay output, rated at

1A.

Analog Outputs one analog output, 0-

10VDC, 5mA maximum drive capability.

Output Resolution 8 bit.

Communication 9600 bps or 38.4 kbps,

automatically detected (determined by

UNI module).

Environmental Operating Range 0 to

130 °F (-17.8 to 54.4 °C); 5 to 95% relative

humidity, non-condensing.

Status Indication Visual (LED) indicators.

Memory 60KB Flash EPROM and 2KB of

RAM, 8KB non-volatile storage for

default algorithm and configuration data.