Siemens 125-1957 Eheat, Ehea T, Fan, Ngt Hw Htg, NGT CLG Mode, AUX Output, AUX HTG Time

Page 37

Application 2299 – Slave Mode

Descriptor

Address

Application

Description

 

 

 

 

DX

44

2284, 2286,

The actual status of the DX cooling compressor.

 

 

2287

 

DO 5

45

2287, 2299

Digital output 5 controls a 24 Vac load with an ON or OFF

 

 

 

status.

EHEAT 1

45

2281, 2283,

The actual status of the first stage of electric heat.

 

 

2284, 2286

 

 

 

 

 

DO 6

46

2287, 2299

Digital output 6 controls a 24 Vac load with an ON or OFF

 

 

 

status.

EHEA T 2

46

2281, 2283,

The actual status of the second stage of electric heat.

 

 

2284, 2286

 

 

 

 

 

DO 7

47

2287, 2299

Digital output 7 controls a 24 Vac load with an ON or OFF

 

 

 

status.

EHEAT 3

47

2281, 2283,

The actual status of the third stage of electric heat.

 

 

2284, 2286

 

 

 

 

 

DO 8

50

2299

Digital output 8 controls a 24 Vac load with an ON or OFF

 

 

 

status.

FAN

50

2281, 2283,

This point is a digital output used to control the fan. ON

 

 

2284, 2286,

indicates that the DO is energized; OFF indicates that the DO is

 

 

2287

de-energized.

 

 

 

 

NGT HW HTG

53

2281, 2283,

YES indicates that the heating valve will be kept open in night

 

 

2284, 2286,

mode in both heating and cooling modes (recommended for

 

 

2287

systems with hot water). NO indicates heating valve will be

 

 

 

controlled normally.

 

 

 

Valid input: YES or NO

 

 

 

 

NGT CLG MODE

54

2281, 2283,

YES indicates that night cooling is available. NO indicates that

 

 

2284, 2286,

night cooling is not available.

 

 

2287

Valid input: YES or NO

 

 

 

 

AUX OUTPUT

55

2281, 2283,

Indicates the percentage of time the auxiliary radiation will be

 

 

2284, 2286

ON.

 

 

 

Valid values: 0 to 100%

 

 

 

 

AUX HTG TIME

57

2281, 2283,

The period of the auxiliary radiation pulse-width modulation

 

 

2284, 2286

algorithm.

 

 

 

Valid values: 0 to 255 minutes

 

 

 

 

EHT STG DELY

58

2281, 2283,

Delay between a stage of electric heat changing state and the

 

 

2284, 2286

next change of state of any stage.

 

 

 

Valid input: 0 to 255 seconds

 

 

 

 

DO DIR.REV

59

2281, 2283,

The configuration setup code for DOs. Allows the DOs to be

 

 

2284, 2286,

direct or reverse acting (enabled equals energized or enabled

 

 

2287, 2299,

equals de-energized).

 

 

 

 

HTG OUTPUT

60

2281, 2283,

If the heating control device is a valve or face-bypass damper,

 

 

2284, 2286,

then the value of this point indicates the position of the heating

 

 

2287

actuator. If electric heat is used, then the value of this point

 

 

 

determines how many stages are ON.

 

 

 

Valid values: 0 to 100%

 

 

 

 

Siemens Building Technologies, Inc.

27

Page 36 Page 38
Image 37
Page 36 Page 38
Contents 125-1957 Rev. CA, July Apogee Unit Vent Controller ⎯Page Service Statement Page Table of Contents Point Database Troubleshooting Table of Contents Manual Organization How To Use This ManualNotation Symbol Meaning Manual SymbolsManual Conventions Datamate SoftwareGetting Help Where To Send CommentsIntroduction Product OverviewOrdering Notes Standard ApplicationsAnalog Hardware InputsDigital Communication Wiring Power WiringHardware Outputs Analog 0 toTemperature Sensors Controller LED IndicatorsRoom Temperature Sensor Actuators Mixed Air/Discharge Air Temperature SensorDamper Actuators Valve ActuatorsDay/Night Mode Control Temperature SetpointsApplications Basic OperationHeating and Cooling Switchover Valve ConfigurationControl Loops ON/OFF Coil Valve Control Morning Warm-up/Cool-downElectric Heat Fan OperationBasic Operation Application 2281 Control Drawing Application 2281 Control Drawing Application 2281 Control Drawing Application 2283 Control Drawing Application 2283 Control Drawing Application 2283 Control Drawing Application 2284 Control Drawing Application 2284 Heating and DX Cooling, Ashrae Cycles IApplication 2284 Heating and DX Cooling, Ashrae Cycles I Application 2286 Control Drawing Application 2286 Heating and DX Cooling, Ashrae CycleApplication 2286 Heating and DX Cooling, Ashrae Cycle Overview Application 2287 Heating and Cooling Nesbitt Cycle WApplication 2287 Heating and Cooling Nesbitt Cycle W Application 2299 Slave Mode Descriptor Address Application Description Point DatabaseRM Stpt MIN Wall SwitchRM Stpt MAX RM Stpt DialNGT Ovrd Ovrd TimeAUX.NOAUX Free CLGAOV1START AOV1SPANAOV2 Span AOV2 StartEheat NGT CLG ModeEhea T FANOA Dmpr POS CLG OutputCLG P Gain CLG D GainSwitch Time Switch LimitMA Loopout OA LoopoutError Status Switch DbandNGT Dband Morn DbandBasic Service Information TroubleshootingOverview Preventive Maintenance Ordering Replacement PartsSafety Features Controller LEDsAlgorithm GlossaryCentralized control Control loopEquipment controller English unitsField panel InterceptSlave mode Override switchOn text Sl unitsUnbundle BST LED IndexDDC FLNTX LED RTS

125-1957 specifications

Siemens 125-1957, a notable creation of the German engineering giant Siemens, is recognized for its innovative design and advanced technology in the realm of electrical engineering. This model is emblematic of the mid-20th century's commitment to optimizing electrical machinery for industrial applications, contributing to enhanced productivity and efficiency.

One of the main features of the Siemens 125-1957 is its robust construction, designed to withstand the demanding environments of industrial settings. The body of the machine is built from high-grade materials, ensuring durability and longevity. It is also designed to minimize vibration and noise during operation, thus enhancing the user experience.

Technologically, the Siemens 125-1957 incorporates advanced electric motor technology, which provides reliable performance across a variety of applications. The motor is designed for high efficiency, allowing it to operate effectively under load while consuming less energy. This efficiency is crucial in industrial applications where operational costs are significant. The motor is also equipped with thermally protected windings, which prevent overheating and extend the service life of the equipment.

The 125-1957 model is characterized by its adaptability in various operational settings. It is compatible with a range of automation systems, making it a versatile choice for factories and production lines. Its design allows for easy integration with existing equipment, minimizing downtime during installation.

Moreover, the Siemens 125-1957 boasts a user-friendly interface, making it accessible for operators with varying levels of expertise. It comes with comprehensive safety features, including circuit protection and emergency stops, ensuring that it meets the strict industrial safety standards.

In summary, the Siemens 125-1957 represents a blend of robust design, advanced motor technology, and user-oriented features. With its energy-efficient performance and adaptability, it stands out as a key asset in industrial electrical engineering, demonstrating Siemens' commitment to innovation and quality in the manufacturing sector. This model continues to be relevant, supporting various industries in their pursuit of efficiency and reliability.
Top Page Image Contents