Nxl Hvac Basic Speed Control - Honeywell NX Series Pocket Programming Manual

NXL HVAC Basic Speed Control

What You Need to Know
Motor nameplate data
− Nominal Current
− Nominal Speed
Setup
1 Run the Start Up Wizard
Note: Running the Start Up Wizard resets all parameters to their default values.
• Hold STOP button down for 5 seconds
• Select application type FAN or PUMP and confirm with ENTER
• Select motor nominal speed and confirm with ENTER
• Select motor nominal current and confirm with ENTER
• For speed signal 0 – 10 V use AI1 (Analogue Input 1)
2 Control Signal Settings for Speed Signals other than 0 – 10 V
• For other selections full parameter view is needed:
P2.1.14
• For speed signal 2 – 10 V use Analogue Input 1
P2.2.6
• For speed signal 4 – 20 mA use Analogue Input 2
P2.1.15.14
• For speed signal 0 – 20 mA use Analogue Input 2
P2.1.15.14
P2.2.12
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 to adjust the speed
• START and STOP for control
3 Hold LEFT down for 3 seconds to return to remote control (I/O or Fieldbus)
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Parameter Conceal Set to 0 (not in use)
AI1 Signal Range Set to 4 (2 – 10 V)
I/O Reference Set to 1 (AI2)
I/O Reference Set to 1 (AI2)
AI2 Signal Range Set to 1 (0 – 20 mA)
Speed signal specification
− Signal type (volts, milliamps)
− Range (0-10, 2-10, 0-20, 4-20)