Siemens 125-1957 NGT Dband, Morn Dband, Switch Dband, AUX DSH Stpt, CTL Stpt, Disch Stpt, MA Stpt

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APOGEE Heat Pump Controller—Multi Stage Owner's Manual

Descriptor

Address

Application

Description

 

 

 

 

NGT DBAND

88

2281, 2283,

During night mode, this point indicates the number of degrees

 

 

2284, 2286,

above or below (depending on heating/cooling mode) the night

 

 

2287

setpoint that the room temperature can raise or drop before the

 

 

 

fan will be turn ON.

 

 

 

Valid input: 0 to 255°F

 

 

 

 

MORN DBAND

89

2281, 2283,

The number of degrees of variance from the heating or cooling

 

 

2284, 2286,

setpoint at which the controller will terminate morning warm-up or

 

 

2287

cool-down and begin normal operation.

 

 

 

Valid input: 0 to 255'F

SWITCH DBAND

90

2281, 2283,

The temperature range in degrees that is compared to the

 

 

2284, 2286,

difference between CTL TEMP (Point 78) and CTL STPT (Point

 

 

2287

92). The difference exceeding this value is one of the conditions

 

 

 

necessary to change modes between heating and cooling.

 

 

 

Valid input: 0 to 255°F

AUX DSH STPT

91

2281, 2284

The setpoint of the auxiliary radiation control loop.

 

 

 

 

CTL STPT

92

2281, 2283,

The actual setpoint value being used as input for the active

 

 

2284, 2286,

temperature control loop.

 

 

2287

 

 

 

 

 

DISCH STPT

93

2281, 2284,

The setpoint of the discharge air control loop.

 

 

2287

 

MA STPT

93

2283, 2286

The setpoint of the mixed air control loop.

 

 

 

 

DSH MIN TEMP

94

2281, 2284

The minimum value to which DISCH STPT (Point 93) can be set

 

 

 

by the room control loop.

 

 

 

 

DSH MAX TEMP

95

2281, 2284

The maximum value to which DISCH STPT (Point 93) can be set

 

 

 

by the room control loop.

 

 

 

 

LOOP TIME

98

2281, 2283,

The time, in seconds, between control loop calculations.

 

 

2284, 2286,

 

 

 

2287

 

 

 

 

 

ERROR STATUS

99

2281, 2283,

The status code indicating any errors detected during controller

 

 

2284, 2286,

power up. A status of 0 indicates there are no problems.

 

 

2287, 2299

 

 

 

 

 

30

Siemens Building Technologies, Inc.

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Contents Apogee Unit Vent Controller ⎯ 125-1957 Rev. CA, JulyPage Service Statement Page Table of Contents Point Database Troubleshooting Table of Contents How To Use This Manual Manual OrganizationManual Symbols Notation Symbol MeaningManual Conventions Datamate SoftwareWhere To Send Comments Getting HelpProduct Overview IntroductionOrdering Notes Standard ApplicationsAnalog Hardware InputsDigital Power Wiring Communication WiringHardware Outputs Analog 0 toTemperature Sensors Controller LED IndicatorsRoom Temperature Sensor Mixed Air/Discharge Air Temperature Sensor ActuatorsDamper Actuators Valve ActuatorsControl Temperature Setpoints Day/Night ModeApplications Basic OperationHeating and Cooling Switchover Valve ConfigurationControl Loops Morning Warm-up/Cool-down ON/OFF Coil Valve ControlElectric 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 Heating and DX Cooling, Ashrae Cycles I Application 2284 Control DrawingApplication 2284 Heating and DX Cooling, Ashrae Cycles I Application 2286 Heating and DX Cooling, Ashrae Cycle Application 2286 Control DrawingApplication 2286 Heating and DX Cooling, Ashrae Cycle Application 2287 Heating and Cooling Nesbitt Cycle W OverviewApplication 2287 Heating and Cooling Nesbitt Cycle W Application 2299 Slave Mode Point Database Descriptor Address Application DescriptionWall Switch RM Stpt MINRM Stpt MAX RM Stpt DialOvrd Time NGT OvrdAUX.NOAUX Free CLGAOV1SPAN AOV1STARTAOV2 Span AOV2 StartNGT CLG Mode EheatEhea T FANCLG Output OA Dmpr POSCLG P Gain CLG D GainSwitch Limit Switch TimeMA Loopout OA LoopoutSwitch Dband Error StatusNGT Dband Morn DbandBasic Service Information TroubleshootingOverview Ordering Replacement Parts Preventive MaintenanceSafety Features Controller LEDsGlossary AlgorithmCentralized control Control loopEnglish units Equipment controllerField panel InterceptOverride switch Slave modeOn text Sl unitsUnbundle Index BST LEDDDC FLNRTS TX LED

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.