HVAC Pocket Programming Guide This guide provides a single reference document for the user of NXL HVAC (product codes starting with HVAC) and NXS (product codes starting with NXS) inverters, when using Basic Speed Control and PID Control in HVAC applications. Contents Introduction NXL HVAC Inverter Connections...
Introduction Basic Speed Control Pump Motor Load Pressure Speed Signal Sensor V signal to AI1 mA signal to AI2 Variable Frequency Drive Control System PID Control Pump Motor Load V signal to AI1 Pressure mA signal to AI2 Sensor Setpoint Signal V signal to AI1 mA signal to AI2 Control System...
See the NXL HVAC Quick Guide and NXL HVAC Safety Guide (attached to each drive) for information on installation, cabling, cooling, power connections and safety. More information can be found in the NXL HVAC User’s Manual, which can be downloaded from http://www.inettrack.europe.honeywell.com/support. Control Terminal Connections + 10 V...
NXS Inverter Connections Installation and Power Connections See the NX Series User’s Manual (included with every shipment) for information on installation, cooling, power connections and safety. The manual can also be downloaded from http://www.inettrack.europe.honeywell.com/support. Control Terminal Connections +10 V Reference output (voltage for potentiometer etc.)
Operating the NXL HVAC Keypad Reading the Display RUN and STOP DIRECTION READY Indicate if the drive is Active motor Lights up when AC power is on. In case of a fault, running. When RUN direction visible: the symbol will not light up. blinks, STOP command forward or ALARM...
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Navigating the Menu Home Menu Sub Menu Value Edit M1 – Monitoring V1.1 Value 1 V1.2 Value 2 P2 – Parameters P2.1 P2.1.1 Value P2.1.1 Edit P2.1.1 P2.1.2 Value P2.1.2 Edit P2.1.2 P2.2 K3 – Keypad Edit parameters UP/DOWN Increase/Decrease RIGHT Edit digits individually S6 –...
NXL HVAC Basic Speed Control What You Need to Know Motor nameplate data Speed signal specification − Nominal Current − Signal type (volts, milliamps) − Nominal Speed − Range (0-10, 2-10, 0-20, 4-20) Setup 1 Run the Start Up Wizard Note: Running the Start Up Wizard resets all parameters to their default values.
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Parameter List This is the list of the most commonly used parameter group: HVAC parameters. Default values on the list equal the values if FAN or PUMP has been selected in Start Up Wizard. Code Parameter Unit Default Note PUMP P2.1.1 Min.
Note: Only one function per input. If there is a need to change mA input to V input or vice versa, please see instructions in the NXL HVAC User’s Manual. Available for download at http://inettrack.europe.honeywell.com/support. Проектирование. Монтаж. Продажа. - http://vskd.ru...
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Manual Testing 1 Hold LEFT down for 3 seconds Control Place automatically switches to Keypad 2 Use normal keypad buttons for speed control • UP and DOWN for adjusting the speed • START and STOP for control 3 Hold LEFT down for 3 seconds to return to remote control (I/O or Fieldbus) Parameter List This is the list of the most commonly used parameter group: HVAC parameters.
Operating the NXS Keypad Reading the Display RUN and STOP DIRECTION READY Indicate if the drive is Active motor Lights up when AC power is on. In case of a fault, running. When RUN direction visible: the symbol will not light up. forward or blinks, STOP command ALARM...
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Navigating the Menu Home Menu Sub menu Value Edit M1 – Monitoring V1.1 Value 1 V1.2 Value 2 P2 – Parameters P2.1 P2.1.1 Value P2.1.1 Edit P2.1.1 P2.1.2 Value P2.1.2 Edit P2.1.2 P2.2 K3 – Keypad Edit parameters UP/DOWN Increase/Decrease RIGHT Edit digits individually S6 –...
NXS Basic Speed Control What You Need to Know Motor nameplate data Speed signal specification − Nominal Current − Signal type (volts, milliamps) − Nominal Speed − Range (0-10, 2-10, 0-20, 4-20) − Nominal Voltage, etc. Setup 1 Run the Start Up Wizard Automatically activated at 1 start.
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Input and Output Functions Only DIN3 is programmable in Basic application. If the other functions are required, change the application to Standard from System Menu (S6.2 Application selection). DIN1 Start Forward DIN4 Preset Speed 1 Ready DIN2 Start Reverse DIN5 Preset Speed 2 DIN3 External Fault...
NXS PID Control What You Need to Know Motor nameplate data Signal/sensor specification − Nominal Current − Signal type (volts, milliamps) − Nominal Speed − Range (0-10, 2-10, 0-20, 4-20) − Sensor span Setup 1 Run the Start Up Wizard Automatically activated at 1 start.
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4 Start function Set P2.4.6 Start Function to “CondFlyStart” Start mode where Tripless Output Switching is enabled. Recommended function to be used especially in fan and pump applications. Note: Only one function per input. If there is a need to change mA input to V input or vice versa, please see instructions in NX User’s Manual.
Inverter Fault Tracing Conveniently, the fault coding and trip logic are similar in all Honeywell NX inverters. This table thus applies to both NXS and NXL HVAC. Fault Fault Possible Cause Correcting measures Code Overcurrent Frequency converter has detected too Check loading.
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Fault Fault Possible Cause Correcting measures Code Motor under load Motor underload protection has tripped. FAN: check that belt is not broken. PUMP: check that pump is not dry. EEPROM Parameter save fault: Contact the technical support. checksum fault - Faulty operation. - Component failure.
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Find out more For more information on Honeywell’s frequency converters and other Honeywell products, visit us online at http://ecc.emea.honeywell.com Automation and Control Solutions Honeywell GmbH Böblinger Straße 17 71101 Schönaich Telephone (49) 7031 637 01 EN2B-0338GE51 R0907 Telefax (49) 7073 637 493 September 2007 www.honeywell.com...