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Features
For plants with constant or variable air volume flow control:
AC 24 V operating voltage
Quasi-static sensor 0..300 Pa operating range
5 and 10 Nm torque
Modbus RTU communication
Volume flow or position control
UL listed
VAV compact controllers are not suitable for environments where the air is saturated with
sticky or fatty particles or contain aggressive substances.
Functions
Function
Communication
Functions
Supported baudrates 9.6, 19.2, 38.4, 57.6, 78.4, 115.2 kbaud
Supported
transmission formats
Termination
Supported Modbus
function codes
Type summary
Product no.
Stock no.
S55499-D166
GDB181.1E/MO
S55499-D167
GLB181.1E/MO
Please refer to data sheet N4698 for information on accessories and spare parts.
1)
Actuator rotates
Ordering (Example)
Product no.
GDB181.1E/MO
The manufacturer of VAV box units (OEM) generally configures and assembles VAV
compact controllers. VAV control core parameters are therefore protected against
unauthorized changes after production. For configuration and maintenance the service tools
AST20 (handheld tool) or ACS931 / ACS941 (PC tool, to be used with AST11) are available.
2 / 14
Siemens
Building Technologies
o Supply air control or extract air control
o Supply and extract air control with ratio control 1:1, or ratio control for positive or
negative pressure
Description
Modbus RTU (RS-485), galvanically separated.
-
Setpoint 0..100%,
-
Actual values for volume flow, position and differential pressure
-
Volume flow or position control
-
Override control Open / Close / Min / Max / Stop
-
Setpoint monitoring and backup mode
1-8-E-1, 1-8-N-1-, 1-8-O-1, 1-8-N-2
120 k electronically switchable
03 Read Holding Registers, 04 Read Input Registers, 06 Write Single Register, 16 Write
Multiple registers (max. 120 registers within one message)
Operating
Positioning
voltage
signal
AC 24 V
Modbus RTU
Stock no.
S55499-D166
Power
Posit. time
consumption
1 VA / 0.5 W
150 s
1)
3 VA / 2.5 W
Description
VAV compact controller
Modbus
Manual
Position
adjuster
feedback
True position
Yes
potentiometer
Quantity
1
A6V10631832_en--_b
2016-01-29
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