Honeywell NXL Series Instructions for use

NXL HVAC APPLICATION MANUAL
Programming manual for NXL HVAC drives

Page 2 (68) Index Honeywell
HVAC Application (Software [ALFIQ105] Ver.2.06)
INDEX
1. I NTRODUCTION 3
2. C ONTROL I/O 4
3. HVAC A PPLICATION – P ARAMETER LISTS 5
3.1 Monitoring values (Control keypad: menu M1) 5
3.2 HVAC parameters (Control keypad: Menu P2 Æ P2.1) 6
3.3 Basic parameters (Control keypad: Menu P2 Æ P2.1.15) 7
3.4 Input signals (Control keypad: Menu P2 Æ P2.2) 9
3.5 Output signals (Control keypad: Menu P2 Æ P2.3) 11
3.6 Drive control parameters (Control keypad: Menu P2 Æ P2.4) 12
3.7 Prohibit frequency parameters (Control keypad: Menu P2 Æ P2.5) 12
3.8 Motor control parameters (Control keypad: Menu P2 Æ P2.6) 13
3.9 Protections (Control keypad: Menu P2 Æ P2.7) 14
3.10 Autorestart parameters (Control keypad: Menu P2 Æ P2.8) 15
3.11 PID reference parameters (Control keypad: Menu P2 Æ P2.9) 15
3.12 Pump & Fan Cascade control parameters (Control keypad: Menu P2 Æ P2.10) 16
3.13 Keypad control (Control keypad: Menu K3) 17
3.14 System menu (Control keypad: Menu S6) 17
3.15 Expander boards (Control keypad: Menu E7) 17
4. D ESCRIPTION OF PARAMETERS 18
4.1 HVAC Parameters 18
4.2 Basic Parameters 20
4.3 Input Signals 25
4.4 Output Signals 29
4.5 Drive Control 33
4.6 Prohibit Frequencies 37
4.7 Motor Control 38
4.8 Protections 41
4.9 Auto Reset Parameters 49
4.10 PID Reference Parameters 50
4.11 Pump and Fan Cascade Control 56
4.12 Keypad Control Parameters 65
5. C
ONTROL SIGNAL LOGIC IN HVAC A PPLICATION 66
6. NXL HVAC PID C ONTROL – B ASIC SETUP 67

Honeywell Introduction Page 3 (68)
1
HVAC Application
1. Introduction
The HVAC Application for NXL uses direct frequency reference from the analogue input 1 as a
default. In this way and with the help of start up wizard the basic commissioning of Honeywell NXL
HVAC drive has been made extremely simple. Basic case with analogue input control with 0-10V or
4-20 mA signal (like the case is with most HVAC applications) the programming of this product can
be done in less than 30 seconds.
However for more complicated applications advanced features are available. This application
manual offers the user to do more things than just the standard setup allows like PID controller can
be used e.g. in pump and fan applications, which offers versatile internal measuring and adjusting
functions. This means that external devices are not necessary. When the drive is commissioned, the
only visible parameter group is B2.1 (HVAC parameters). The special parameters can be browsed
and edited after changing the value of par. 2.1.14 (Parameter conceal).
The direct frequency reference can be used for the control without the PID controller and it can be
selected from the analogue inputs, fieldbus, keypad, preset speeds or motor potentiometer.
Special parameters for Pump and Fan Cascade Control (Group P2.10) can be browsed and edited
after changing the value of par 2.9.1 to 2 (Pump and fan control activated).
The PID controller reference can be selected from the analogue inputs, fieldbus, PID keypad
reference 1 or by enabling the PID keypad reference 2 via digital input. The PID controller actual
value can be selected from the analogue inputs, fieldbus or the actual values of the motor. PID
controller can also be used when the frequency converter is controlled via fieldbus or the control
keypad.
•Digital inputs DIN2, DIN3, (DIN4) and digital inputs DIE1, DIE2, DIE3 are freely
programmable.
•Internal and optional digital/relay and analogue outputs are freely programmable.
•Analogue input 1 can be programmed as current input, voltage input or digital input DIN4.
NOTE! If the analogue input 1 has been programmed as DIN4 with parameter 2.2.6 (AI1 Signal
Range), check that the jumper selections (
Figure 1- 1 , page 25) are correct.
Additional functions:
•The PID controller can be used from control places I/O, keypad and fieldbus
•Sleep function
•Actual value supervision function: fully programmable; off, warning, fault
•Programmable Start/Stop and Reverse signal logic
•Reference scaling
•2 Preset speeds
•Analogue input range selection, signal scaling, inversion and filtering
•Frequency limit supervision
•Programmable start and stop functions
•DC-brake at start and stop
•Prohibit frequency area
•Programmable U/f curve and U/f optimisation
•Adjustable switching frequency
•Autorestart function after fault
•Protections and supervisions (all fully programmable; off, warning, fault):
•Current input fault
•External fault
•Output phase
•Under voltage
•Earth fault
•Motor thermal, stall and underload protection
•Thermistor
•Fieldbus communication
•Option board

Page 4 (68) Control I/O Honeywell
2
2. Control I/O
Terminal Signal Description
1 +10V
ref
Reference output Voltage for potentiometer, etc.
2 AI1+ Analogue input, voltage range
0—10V DC.
Voltage input frequency reference
Can be programmed as DIN4
3 AI1- I/O Ground Ground for reference and controls
4 AI2+
5 AI2-
Analogue input, voltage range
0—10V DC, or current range
0/4—20mA
Current input frequency reference
(programmable)
6 +24V Control voltage output Voltage for switches, etc. max 0.1 A
7 GND I/O ground Ground for reference and controls
8 DIN1 Start forward Contact closed = start forward
9 DIN2 Start reverse (programmable) Contact closed = start reverse
10 DIN3 Multi-step speed selection 1
(programmable)
Contact closed = multi-step speed
11 GND I/O ground Ground for reference and controls
18 AO1+
19 AO1-
Output frequency
Analogue output
Programmable
Range 0—20 mA/R
L
, max. 500Ω
A RS 485 Serial bus Differential receiver/transmitter
B RS 485 Serial bus Differential receiver/transmitter
30 +24V 24V aux. input voltage Control power supply backup
21 RO1
22 RO1
23 RO1
Relay output 1
FAULT
Programmable
12 +24V +24 V DC Control voltage output; voltage for
switches etc.
13 GND I/O ground Ground for reference and controls
14 DIE1 Preset speed selection 2
(programmable)
Contact closed = Preset speed 2
15 DIE2 Fault Reset
(programmable)
Contact closed = Fault reset
16 DIE3 Disable PID (PID control
selection)
(Programmable)
Contact closed = Disable PID
25 ROE1
26 ROE1
Expander Relay output 1 (NO)
RUN
Programmable
28 TI+
29 TI-
Motor Thermistor input Active = Fault, stop according to defined
method
Table 1- 1. HVAC application default I/O configuration
Terminal Signal Description
1 +10V
ref
Reference output Voltage for potentiometer, etc.
2 AI1+
or
DIN 4
Analogue input, voltage range
0—10V DC
Voltage input frequency reference (MF2-3)
Voltage/current input frequency reference
(MF4-MF6)
Can be programmed as DIN4
3 AI1- I/O Ground Ground for reference and controls
4 AI2+
5 AI2-
Analogue input, voltage range
0—10V DC or current range
0—20mA
Voltage or current input frequency
reference
6 + 24 V Control voltage output
7 GND I/O ground Ground for reference and controls
Table 1- 2. The programming of AI1 as DIN4
Reference
potentiometer
mA

Honeywell HVAC Application – Parameter lists Page 5 (68)
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3. HVAC Application – Parameter lists
On the next pages you will find the lists of parameters within the respective parameter groups.
The parameter descriptions are given on pages 18 to 65.
Column explanations:
Code = Location indication on the keypad; Shows the operator the present param. number
Parameter = Name of parameter
Min = Minimum value of parameter
Max = Maximum value of parameter
Unit = Unit of parameter value; given if available
Default = Value preset by factory
Cust = Customer’s own setting
ID = ID number of the parameter (used with PC tools)
= On the parameter code: parameter value can only be changed after the FC has been
stopped.
3.1 Monitoring values (Control keypad: menu M1)
The monitoring values are the actual values of parameters and signals as well as statuses and
measurements. Monitoring values cannot be edited.
See NXL HVAC & Compact User Manual, Chapter 7.4.1, page 58 for more information.
Code Parameter Unit ID Description
V1.1 Output frequency Hz 1 Frequency to the motor
V1.2 Frequency reference Hz 25
V1.3 Motor speed rpm 2 Calculated motor speed
V1.4 Motor current A 3 Measured motor current
V1.5 Motor torque % 4 Calculated actual torque/nominal torque of
the motor
V1.6 Motor power % 5 Calculated actual power/nominal power of the
motor
V1.7 Motor voltage V 6 Calculated motor voltage
V1.8 DC-link voltage V 7 Measured DC-link voltage
V1.9 Unit temperature ºC 8 Heat sink temperature
V1.10 Analogue input 1 13 AI1
V1.11 Analogue input 2 14 AI2
V1.12 Analogue output current mA 26 AO1
V1.13 Analogue output current 1, expander board mA 31
V1.14 Analogue output current 2, expander board mA 32
V1.15 DIN1, DIN2, DIN3 15 Digital input statuses
V1.16 DIE1, DIE2, DIE3 33 I/O expander board: Digital input statuses
V1.17 RO1 34 Relay output 1 status
V1.18 ROE1, ROE2, ROE3 35 I/O exp. board: Relay output statuses
V1.19 DOE 1 36 I/O exp. board: Digital output 1 status
V1.20 PID Reference % 20 In percent of the maximum process reference
V1.21 PID Actual value % 21 In percent of the maximum actual value
V1.22 PID Error value % 22 In percent of the maximum error value
V1.23 PID Output % 23 In percent of the maximum output value
V1.24 Autochange outputs 1, 2, 3 30 Used only in pump and fan control
V1.25 Mode 66
Shows current operation mode selected with
start-up wizard: 0=Not selected, 1=Standard,
2=Fan, 3=Pump, 4=High Performance
Table 1- 3. Monitoring values

Page 6 (68) HVAC Application – Parameter lists Honeywell
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3.2 HVAC parameters (Control keypad: Menu P2 ÆP2.1)
Code Parameter Min Max Unit Default** Cust ID Note
P2.1.1 Min frequency 0,00 Par. 2.1.2 Hz 0,00 101
P2.1.2 Max frequency Par. 2.1.1 320,00 Hz 50,00 102
NOTE: If f
max
> than the
motor synchronous speed,
check suitability for motor
and drive system
P2.1.3 Acceleration time 1 0,1 3000,0 s 1,0 103
P2.1.4 Deceleration time 1 0,1 3000,0 s 1,0 104
P2.1.5 Current limit 0,1 x I
L
1,5 x I
L
A I
L
107
NOTE: Formulas apply
approximately for
frequency converters up to
MF3. For greater sizes,
consult the factory.
P2.1.6 Nominal current of
the motor 0,3 x I
L
1,5 x I
L
A I
L
113 Check the rating plate of
the motor
P2.1.7 Nominal speed of
the motor 300
20000 rpm 1440
112
The default applies for a 4-
pole motor and a nominal
size frequency converter.
P2.1.8 Start function 0 1 0
505
0=Ramp
1=Flying start
2=Conditional Flying start*
P2.1.9 Stop function 0 1 0 506 0=Coasting
1=Ramp
P2.1.10 Automatic restart 0 1 0
731
0=Not used
1=Used (3 x automatic
Restart)
P2.1.11 Nominal voltage of
the motor 380 500 V 400V 110
P2.1.12 Nominal frequency
of the motor 30,00 320,00 Hz 50,00 111 Check the rating plate of the motor
P2.1.13 Preset speed 1 0,00 Par. 2.1.2 Hz 10,00 105
P2.1.14 Parameter conceal 0 1 1
115
0=All parameters and
menus visible
1=HVAC group P2.1 and
menus M1 – H5 visible
Table 1- 4. HVAC parameters P2.1 in NXL HVAC
* Start mode where Trip Free Output Switching is enabled, recommended to be used with all pump and fan
applications.
** Default values if Start-up wizard has not been used. Look Figure 7-3 on page 54 from NXL HVAC &
Compact User Manual or NXL HVAC DRIVE Quick Guide to see the values with different modes in
wizard.
NOTE! Deactivating Parameter conceal P.2.1.14 gets all parameters into use in NXL HVAC drive

Honeywell HVAC Application – Parameter lists Page 7 (68)
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3.3 Basic parameters (Control keypad: Menu P2 ÆP2.1.15)
In NXL HVAC the full NXL basic group can be found under the subgroup 2.1.15.
Code Parameter Min Max Unit Default** Cust ID Note
P2.1.15.1 Min frequency 0,00 Par. 2.1.2 Hz 0,00 101
P2.1.15.2 Max frequency Par. 2.1.1 320,00 Hz 50,00 102
NOTE: If f
max
> than the
motor synchronous speed,
check suitability for motor
and drive system
P2.1.15.3 Acceleration time
1 0,1 3000,0 s 1,0 103
P2.1.15.4 Deceleration time
1 0,1 3000,0 s 1,0 104
P2.1.15.5 Current limit 0,1 x I
L
1,5 x I
L
A I
L
107
NOTE: Formulas apply
approximately for
frequency converters up to
MF3. For greater sizes,
consult the factory.
P2.1.15.6 Nominal voltage o
f
the motor 180 690 V 400 V 110
P2.1.15.7
Nominal
frequency of the
motor
30,00 320,00 Hz 50,00 111
Check the rating plate of
the motor
P2.1.15.8 Nominal speed of
the motor 300 20 000 rpm 1440
112
The default applies for a 4-
pole motor and a nominal
size frequency converter.
P2.1.15.9 Nominal current
of the motor 0,3 x I
L
1,5 x I
L
A I
L
113 Check the rating plate of
the motor
P2.1.15.10 Motor cosϕ0,30 1,00 0,85 120 Check the rating plate of
the motor
P2.1.15.11 Start function 0 1 0
505
0=Ramp
1=Flying start
2=Conditional Flying start*
P2.1.15.12 Stop function 0 1 0 506 0=Coasting
1=Ramp
P2.1.15.13 U/f optimisation 0 1 0 109 0=Not used
1=Automatic torque boost
P2.1.15.14 I/O reference 0 5 0 117
0=AI1
1=AI2
2=Keypad reference
3=Fieldbus reference
(FBSpeedReference)
4=Motor potentiometer
5=AI1/AI2 selection
P2.1.15.15 AI2 signal range 1 4 2 390
Not used if AI2 Custom
min <> 0% or AI2 custom
max. <> 100%
1=0—20 mA
2=4—20 mA
3=0V – 10V
4=2V – 10V
* Start mode where Trip Free Output Switching is enabled, recommended to be used with all pump and fan
applications.
** Default values if Start-up wizard has not been used. Look Figure 7-3 on page 54 from NXL HVAC &
Compact User Manual or NXL HVAC DRIVE Quick Guide to see the values with different modes in
wizard.

Page 8 (68) HVAC Application – Parameter lists Honeywell
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P2.1.15.16 Analogue output
function 0 12 1
307
0=Not used
1=Output freq. (0—f
max
)
2=Freq. reference (0—
f
max
)
3=Motor speed (0—Motor
nominal speed)
4=Output current (0—
I
nMotor
)
5=Motor torque (0—
T
nMotor
)
6=Motor power (0—P
nMotor
)
7=Motor voltage (0—
U
nMotor
)
8=DC-link volt (0—1000V)
9=PI controller ref. value
10=PI contr. act. value 1
11=PI contr. error value
12=PI controller output
P2.1.15.17 DIN2 function 0 10 1
319
0=Not used
1=Start Reverse
(DIN1=Start forward)
2=Reverse (DIN1=Start)
3=Stop pulse (DIN1=Start
pulse)
4=External fault, cc
5=External fault, oc
6=Run enable
7=Preset speed 2
8= Motor pot. UP (cc)
9= Disable PID (Direct
freq. reference)
10=Interlock 1
P2.1.15.18 DIN3 function 0 17 6
301
0=Not used
1=Reverse
2=External fault, cc
3=External fault, oc
4=Fault reset
5=Run enable
6=Preset speed 1
7=Preset speed 2
8=DC-braking command
9=Motor pot. UP (cc)
10=Motor pot. DOWN (cc)
11=Disable PID (Direct
freq. reference)
12=PID Keypad ref. 2
selection
13=Interlock 2
14=Thermistor input
Note! See NXL HVAC
User Manual 6.2.4
15= Force cp to I/O
16= Force cp to Fieldbus
17=AI1/AI2 selection for
I/O reference
P2.1.19 Preset speed 1 0,00 Par. 2.1.2 Hz 10,00 105
P2.1.20 Preset speed 2 0,00 Par. 2.1.2 Hz 50,00 106
P2.1.21 Automatic restart 0 1 0 731 0=Not used
1=Used
P2.1.22 Parameter
conceal 0 1 0
115
0=All parameters and
menus visible
1=Only group P2.1 and
menus M1 to H5 visible
Table 1- 5. Basic parameters P2.1.15 cc = closing contact: oc = opening contact: cp = control place

Honeywell HVAC Application – Parameter lists Page 9 (68)
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3.4 Input signals (Control keypad: Menu P2 ÆP2.2)
Code Parameter Min Max Unit Default Cust ID Note
P2.2.1 Expander board
DIE1 function 0 13 7
368
0=Not used
1=Reverse
2=External fault, cc
3=External fault, oc
4=Fault reset
5=Run enable
6=Preset speed 1
7=Preset speed 2
8=DC-braking command
9=Motor pot. UP (cc)
10=Motor pot. DOWN (cc)
11=Disable PID (PID
control selection)
12=PID Keypad ref. 2
selection
13=Interlock 1
P2.2.2 Expander board
DIE2 function 0 13 4 330 As par. 2.2.1, except:
13=Interlock 2
P2.2.3 Expander board
DIE3 function 0 13 11
369 As par. 2.2.1, except:
13=Interlock 3
P2.2.4 DIN4 function (AI1)
0 13 2 499 As par. 2.2.1, except:
13=Interlock 3
P2.2.5 AI1 signal selection 0 10 377
10=AI1 (1=Local,
0=input 1)
11=AI2 (1=Local,
1= input 2)
20=Exp. AI1
(2=exp.board
0=input 1)
21=Exp AI2
(2=exp.board
1=input 2)
P2.2.6 AI1 signal range 1 4 3 379
0=Digital input 4
1=0mA – 20mA (MF4-->)
2=4mA – 20mA (MF4-->)
3=0V – 10V
4=2V – 10V
Not used if AI2 Custom
min > 0% or AI2 custom
max. < 100%
Note! See NXL HVAC
User manual, chapter
7.4.6: AI1 mode
P2.2.7 AI1 custom minimum
setting 0,00 100,00 % 0,00 380
P2.2.8 AI1 custom
maximum setting 0,00 100,00 % 100,00 381
P2.2.9 AI1 inversion 0 1 0 387 0=Not inverted
1=Inverted
P2.2.10 AI1 filter time 0,00 10,00 s 0,10 378
0=No filtering
P2.2.11 AI2 signal selection 0 11 388 As par. 2.2.5

Page 10 (68) HVAC Application – Parameter lists Honeywell
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P2.2.12 AI2 signal range
1 4 2
390
Not used if AI2 Custom
min <> 0% or AI2 custom
max. <> 100%
1=0—20 mA
2=4—20 mA
3=0V – 10V
4=2V – 10V
P2.2.13 AI2 custom minimum
setting 0,00 100,00 % 0,00 391
P2.2.14 AI2 custom
maximum setting 0,00 100,00 % 100,00 392
P2.2.15 AI2 inversion 0 1 0 398 0=Not inverted
1=Inverted
P2.2.16 AI2 filter time 0,00 10,00 s 0,10 389
0=No filtering
P2.2.17
Motor potentiometer
frequency reference
memory reset
0 2 1
367
0=No reset
1=Reset if stopped or
powered down
2=Reset if powered down
P2.2.18 Reference scaling
minimum value 0,00 P2.2.19 0,00 344
P2.2.19 Reference scaling
maximum value P2.2.18 320,00 0,00 345
P2.2.20 Keypad control
reference selection 0 5 2
121
0=AI1
1=AI2
2=Keypad reference
3=Fieldbus reference
(FBSpeedreference)
4=Motor potentiometer
5=PID controller
P2.2.21 Fieldbus control
reference selection 0 5 3
122 See above
Table 1- 6. Input signals, P2.2
CP=control place
cc=closing contact
oc=opening contact

Honeywell HVAC Application – Parameter lists Page 11 (68)
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3.5 Output signals (Control keypad: Menu P2 ÆP2.3)
Code Parameter Min Max Unit Default Cust ID Note
P2.3.1 Relay output 1
function 0 20 3
313
0=Not used
1=Ready
2=Run
3=Fault
4=Fault inverted
5=FC overheat warning
6=Ext. fault or warning
7=Ref. fault or warning
8=Warning
9=Reversed
10=Preset speed
11=At speed
12=Mot. regulator active
13=OP freq. limit superv.1
14=Control place: IO
15=Thermistor fault/
warning
16=Actual value supervision
17=Autochange 1 control
18=Autochange 2 control
19=Autochange 3 control
20=AI supervision
P2.3.2 Expander board relay
output 1 function 0 20 2 314 As parameter 2.3.1
P2.3.3 Expander board relay
output 2 function 0 20 3 317 As parameter 2.3.1
P2.3.4 Expander board digital
output 1 function 0 20 1 312 As parameter 2.3.1
P2.3.5 Analogue output
function 0 12 1
307 See par. 2.1.15.16
P2.3.6 Analogue output filter
time 0,00 10,00 s 1,00 308 0=No filtering
P2.3.7 Analogue output
inversion 0 1 0
309 0=Not inverted
1=Inverted
P2.3.8 Analogue output
minimum 0 1 0
310 0=0 mA
1=4 mA
P2.3.9 Analogue output scale 10 1000 % 100 311
P2.3.10
Expander board
analogue output 1
function
0 12 0 472 As parameter 2.1.15.16
P2.3.11
Expander board
analogue output 2
function
0 12 0 479 As parameter 2.1.15.16
P2.3.12 Output frequency limit
1 supervision 0 2 0
315
0=No limit
1=Low limit supervision
2=High limit supervision
P2.3.13
Output frequency limit
1;
Supervised value
0,00 Par.
2.1.2 Hz 0,00
316
P2.3.14 Analogue input
supervision 0 2 0
356
0=Not used
1=AI1
2=AI2
P2.3.15 AI supervision OFF
limit 0,00 100,00 % 10,00 357
P2.3.16
A
I supervision ON limit 0,00 100,00 % 90,00 358
P2.3.17 Relay output 1 ON
delay 0,00 320,00 s 0,00 487 ON delay for RO1
P2.3.18 Relay output 1 OFF
delay 0,00 320,00 s 0,00 488 OFF delay for RO1
Table 1- 7. Output signals, P2.3

Page 12 (68) HVAC Application – Parameter lists Honeywell
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3.6 Drive control parameters (Control keypad: Menu P2 ÆP2.4)
Code Parameter Min Max Unit Default Cust ID Note
P2.4.1 Ramp 1 shape 0,0 10,0 s 0,0 500 0=Linear
>0=S-curve ramp time
P2.4.2 Brake chopper 0 3 0 504
0=Disabled
1=Used in Run state
3=Used in Run and Stop
state
P2.4.3 DC braking current 0,15 x I
n
1,5 x I
n
A Varies 507
P2.4.4 DC braking time at
stop 0,00 600,00 s 0,00 508 0=DC brake is off at stop
P2.4.5
Frequency to start
DC braking during
ramp stop
0,10 10,00 Hz 1,50 515
P2.4.6 DC braking time at
start 0,00 600,00 s 0,00 516 0=DC brake is off at start
P2.4.7 Flux brake 0 1 0 520 0=Off
1=On
P2.4.8 Flux braking current 0,0 Varies A 0,0 519
Table 1- 8. Drive control parameters, P2.4
3.7 Prohibit frequency parameters (Control keypad: Menu P2 ÆP2.5)
Code Parameter Min Max Unit Default Cust ID Note
P2.5.1 Prohibit frequency
range 1 low limit 0,0 Par.
2.5.2 Hz 0,0 509 0=Not used
P2.5.2 Prohibit frequency
range 1 high limit 0,0 Par. 2.1.2 Hz 0,0 510 0=Not used
P2.5.3
Prohibit frequencies
acc./dec. ramp
scaling
0,1 10,0 Times 1,0 518
Multiplier of the currently
selected ramp time
between prohibit
frequency limits
Table 1- 9. Prohibit frequency parameters, P2.5

Honeywell HVAC Application – Parameter lists Page 13 (68)
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3.8 Motor control parameters (Control keypad: Menu P2 ÆP2.6)
Code Parameter Min Max Unit Default Cust ID Note
P2.6.1 Motor control mode 0 1 0 600 0=Frequency control
1=Speed control
P2.6.2 U/f ratio selection 0 3 0
108
0=Linear
1=Squared
2=Programmable
3=Linear with flux optim.
P2.6.3 Field weakening
point 30,00 320,00 Hz 50,00 602
P2.6.4 Voltage at field
weakening point 10,00
200,00 % 100,00 603 n% x U
nmot
P2.6.5 U/f curve midpoint
frequency 0,00 par. P2.6.3 Hz 50,00 604
P2.6.6 U/f curve midpoint
voltage 0,00 100,00 % 100,00
605
n% x U
nmot
Parameter max. value =
par. 2.6.4
P2.6.7 Output voltage at
zero frequency 0,00 40,00 % 0,00 606 n% x U
nmot
P2.6.8 Switching frequency 1,0 16,0 kHz 6,0 601 Depends on kW
P2.6.9 Overvoltage
controller 0 1 1
607 0=Not used
1=Used
P2.6.10 Undervoltage
controller 0 1 1
608 0=Not used
1=Used
P2.6.11 Identification 0 1 0 631 0=No action
1=ID no run
Table 1- 10. Motor control parameters, P2.6

Page 14 (68) HVAC Application – Parameter lists Honeywell
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3.9 Protections (Control keypad: Menu P2 ÆP2.7)
Code Parameter Min Max Unit Default Cust ID Note
P2.7.1 Response to 4mA
reference fault 0 3 0
700
0=No response
1=Warning
2=Fault, stop acc. to
2.1.912
3=Fault, stop by coasting
P2.7.2 Response to
external fault 0 3 2
701
P2.7.3 Response to
undervoltage fault 1 3 2
727
P2.7.4 Output phase
supervision 0 3 2
702
P2.7.5 Earth fault protection 0 3 2 703
P2.7.6 Thermal protection
of the motor 0 3 2
704
0=No response
1=Warning
2=Fault, stop acc. to
2.1.129
3=Fault, stop by coasting
P2.7.7 Motor ambient
temperature factor –100,0 100,0 % 0,0 705
P2.7.8 Motor cooling factor
at zero speed 0,0 150,0 % 40,0 706
P2.7.9 Motor thermal time
constant 1 200 min 45 707
P2.7.10 Motor duty cycle 0 100 % 100 708
P2.7.11 Stall protection 0 3 1 709 As par. 2.7.1
P2.7.12 Stall current limit 0,1 I
nmotor
x 2 A I
nmotor
x1.3
710
P2.7.13 Stall time limit 1,00 120,00 s 15,00 711
P2.7.14 Stall frequency limit 1,0 P 2.1.2 Hz 25,0 712
P2.7.15 Underload protection 0 3 0 713 As par. 2.7.1
P2.7.16 Underload curve at
nominal frequency 10,0 150,0 % 50,0 714
P2.7.17 Underload curve at
zero frequency 5,0 150,0 % 10,0 715
P2.7.18 Underload
protection time limit 2,00 600,00 s 20,00 716
P2.7.19 Response to
thermistor fault 0 3 0
732 As par. 2.7.1
P2.7.20 Response to
fieldbus fault 0 3 2
733 As par. 2.7.1
P2.7.21 Response to slot
fault 0 3 2
734 As par. 2.7.1
P2.7.22 Actual value
supervision 0 4 0
735
0=No response
1=Warning if below limit
2=Warning if above limit
3=Fault, if below limit
4=Fault, if above limit
P2.7.23 Actual value
supervision limit 0,0 100,0 % 10,0 736
P2.7.24 Actual value
supervision delay 0 3600 s 5 737
Table 1- 11. Protections, G2.7

Honeywell HVAC Application – Parameter lists Page 15 (68)
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3.10 Autorestart parameters (Control keypad: Menu P2 ÆP2.8)
Code Parameter Min Max Unit Default Cust ID Note
P2.8.1 Wait time 0,10 10,00 s 0,50 717
P2.8.2 Trial time 0,00 60,00 s 30,00 718
P2.8.3 Start function 0 2 0 719
0=Ramp
1=Flying start
2=According to par. 2.1.8
Table 1- 12. Autorestart parameters, G2.8
3.11 PID reference parameters (Control keypad: Menu P2 ÆP2.9)
Code Parameter Min Max Unit Default Cust ID Note
P2.9.1 PID activation 0 1 0 163
0=Not used
1=PID controller activated
2=Pump & fan control
active, group P2.10
visible
P2.9.2 PID reference 0 3 2 332
0=AI1
1=AI2
2=Ref. from keypad (PID
Ref 1)
3=Fieldbus reference
(ProcessDataIN1)
P2.9.3 Actual value input 0 6 1 334
0=AI1 signal
1=AI2 signal
2=Fieldbus
(ProcessDataIN2)
3=Motor torque
4=Motor speed
5=Motor current
6=Motor power
7= AI1-AI2 (Actual 1 –
Actual 2)
P2.9.4 PID controller gain 0,0 1000,0 % 100,0 118
P2.9.5 PID controller I-time 0,00 320,00 s 10,00 119
P2.9.6 PID controller D-
time 0,00 10,00 s 0,00 132
P2.9.7 Actual value 1
minimum scale –1000,0 1000,0 % 0,00 336 0=No minimum scaling
P2.9.8 Actual value 1
maximum scale –1000,0 1000,0 % 100,0 337 100=No maximum scaling
P2.9.9 Error value inversion 0 1 0 340
P2.9.10 Sleep frequency Par.
2.1.1
Par.
2.1.2 Hz 10,00 1016
P2.9.11 Sleep delay 0 3600 s 30 1017
P2.9.12 Wake up level 0,00 100,00 % 25,00 1018
P2.9.13 Wake up function 0 3 0 1019
0=Wake-up at fall below
wake-up level (2.9.12)
1=Wake-up at exceeded
wake-up level (2.9.12)
2=Wake-up at fall below
wake up level (PID ref)
3=Wake-up at exceeded
wake up level (PID ref)
Table 1- 13. PID reference parameters, G2.9

Page 16 (68) HVAC Application – Parameter lists Honeywell
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3.12 Pump & Fan Cascade control parameters (Control keypad: Menu P2 ÆP2.10)
NOTE! Group P2.10 is visible only if the value of par 2.9.1 is set to 2.
Code Parameter Min Max Unit Default Cust ID Note
P2.10.1 Number of auxiliary
drives 0 3 1 1001
P2.10.2 Start delay, auxiliary
drives 0,0 300,0 s 4,0 1010
P2.10.3 Stop delay, auxiliary
drives 0,0 300,0 s 2,0 1011
P2.10.4 Autochange 0 4 0 1027
0=Not used
1= Autochange with aux
pumps
2= Autochange with Freq.
conv. & aux pumps
3= Autochange and
interlocks (aux pumps)
4= Autochange and
interlocks (Freq. conv.
& aux pumps)
P2.10.5 Autochange interval 0,0 3000,0 h 48,0 1029
0,0=TEST=40 s
Elapsed time for
autochange
P2.10.6
Autochange;
Maximum number of
auxiliary drives
0 3 1 1030 Autochange level for
auxiliary drives
P2.10.7 Autochange
frequency limit 0,00 par. 2.1.2 Hz 25,00 1031 Autochange frequency level for variable speed drive
P2.10.8 Start frequency,
auxiliary drive 1
Par.
2.10.9 320,00 Hz 51,00 1002
P2.10.9 Stop frequency,
auxiliary drive 1
Par.
2.1.1
Par.
2.10.8 Hz 10,00 1003
Table 1- 14. Pump and fan cascade control parameters

Honeywell HVAC Application – Parameter lists Page 17 (68)
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3.13 Keypad control (Control keypad: Menu K3)
The parameters for the selection of control place and direction on the keypad are listed below.
See the Keypad control menu in the NXL HVAC & Compact User Manual.
Code Parameter Min Max Unit Default Cust ID Note
P3.1 Control place 1 3 1 125
1= I/O terminal
2 = Keypad
3= Fieldbus
R3.2 Keypad reference
Par.
2.1.1
Par.
2.1.2 Hz
P3.3 Direction (on
keypad) 0 1 0
123 0= Forward
1= Reverse
P3.4 Stop button 0 1 1 114
0=Limited function of Stop
button
1=Stop button always
enabled
P3.5 PID reference 0,00 100,00 % 0,00
P3.6 PID reference 2 0,00 100,00 % 0,00 Selected with digital inputs
Table 1- 15. Keypad control parameters, M3
3.14 System menu (Control keypad: Menu S6)
For parameters and functions related to the general use of the frequency converter, such as
customised parameter sets or information about the hardware and software, see Chapter 7.4.6 in
the NXL HVAC & Compact User Manual.
3.15 Expander boards (Control keypad: Menu E7)
The E7 menu shows the expander boards attached to the control board and board-related
information. For more information, see Chapter 7.4.7 in the NXL HVAC & Compact User Manual.

Page 18 (68) Description of parameters Honeywell
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4. Description of parameters
4.1 HVAC Parameters
2.1.1, 2.1.2 Minimum/maximum frequency
Defines the frequency limits of the frequency converter.
The maximum value for parameters 2.1.1 and 2.1.2 is 320 Hz.
The software will automatically check the values of parameters 2.1.13, 2.1.15.19, 2.1.15.20,
2.3.13, 2.5.1, 2.5.2 and 2.6.5.
2.1.3, 2.1.4 Acceleration time 1, deceleration time 1
These limits correspond to the time required for the output frequency to
accelerate from the zero frequency to the set maximum frequency (par. 2.1.2).
2.1.5 Current limit
This parameter determines the maximum motor current from the frequency converter. To avoid
motor overload, set this parameter according to the rated current of the motor. The current limit
is equal to the rated converter current (IL) by default.
2.1.6 Nominal current of the motor
Find this value I
n
on the rating plate of the motor.
2.1.7 Nominal speed of the motor
Find this value n
n
on the rating plate of the motor.
2.1.8 Start function
Ramp:
0The frequency converter starts from 0 Hz and accelerates to maximum frequency
within the set acceleration time. (Load inertia or starting friction may cause prolonged
acceleration times).
Flying start:
1The frequency converter is able to start into a running motor by applying a small
torque to motor and searching for the frequency corresponding to the speed the
motor is running at. The searching starts from the maximum frequency towards the
actual frequency until the correct value is detected. Thereafter, the output frequency
will be increased/decreased to the set reference value according to the set
acceleration/deceleration parameters.
Use this mode if the motor is coasting when the start command is given. With the
flying start, it is possible to ride through short mains voltage interruptions.
Conditional Flying start:
2With this mode it is possible to disconnect and connect the motor from the frequency
converter even when the START command is active. On re-connecting the motor,
the drive will operate as described mode 1 (flying start). This function is also called
Trip Free Output Switching.

Honeywell Description of parameters Page 19 (68)
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2.1.9 Stop function
Coasting:
0The motor coasts to a halt without control from the frequency converter after the
Stop command.
Ramp:
1After the Stop command, the speed of the motor is decelerated according to the set
deceleration parameters.
If the regenerated energy is high it may be necessary to use an external braking
resistor for faster deceleration.
2.1.10 Automatic restart function
The automatic restart is taken into use with this parameter
0 = Disabled
1 = Enabled (3 automatic restarts, see par. 2.8.1 – 2.8.3)
2.1.11 Nominal voltage of the motor
Find this value U
n
on the rating plate of the motor. This parameter sets the voltage at the field
weakening point (parameter 2.6.4) to 100% x U
nmotor
.
2.1.12 Nominal frequency of the motor
Find this value f
n
on the rating plate of the motor. This parameter sets the field weakening point
(parameter 2.6.3) to the same value.
2.1.13 Preset speed 1
Parameter values are automatically limited between the minimum and maximum frequencies.
(par. 2.1.1 and 2.1.2)
2.1.14 Parameter conceal
With this parameter you can hide all other parameter groups except the HVAC parameter group
(B2.1).
Note! The factory default of this parameter is 1, i.e. all parameter groups except b2.1 have
been hidden. The other parameter groups cannot be browsed or edited before the value of this
parameter is set to 0.
0 = Disabled (all parameter groups can be browsed with the keypad)
1 = Enabled (only the HVAC parameters, B2.1, can be browsed with the keypad)

Page 20 (68) Description of parameters Honeywell
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4.2 Basic Parameters
This parameter group is only shown if parameter conceal P2.1.14 is deactivated. This group provides the
Basic parameters in the sub group 2.1.15 exactly in the same order as Basic Group 2.1 in NXL Compact or
the standard NXL range. Changing a parameter which exists in both HVAC and Basic group is
automatically changed in the other as well.
2.1.15.1, 2.1.15.2 Minimum/maximum frequency
Defines the frequency limits of the frequency converter.
The maximum value for parameters 2.1.15.1 and 2.1.15.2 is 320 Hz.
The software will automatically check the values of parameters 2.1.13, 2.1.15.19, 2.1.15.20,
2.3.13, 2.5.1, 2.5.2 and 2.6.5.
Equal to parameters 2.1.1 and 2.1.2 in HVAC parameter group. Changing this parameter
automatically changes this as well
2.1.15.3, 2.1.15.4 Acceleration time 1, deceleration time 1
These limits correspond to the time required for the output frequency to
accelerate from the zero frequency to the set maximum frequency (par. 2.1.2 and 2.1.15.2).
Equal to parameters 2.1.3 and 2.1.4 in HVAC parameter group. Changing this parameter
automatically changes this as well
2.1.15.5 Current limit
This parameter determines the maximum motor current from the frequency converter. To avoid
motor overload, set this parameter according to the rated current of the motor. The current limit
is equal to the rated converter current (IL) by default.
Equal to parameter 2.1.5 in HVAC parameter group. Changing this parameter automatically
changes this as well
2.1.15.6 Nominal voltage of the motor
Find this value U
n
on the rating plate of the motor. This parameter sets the voltage at the field
weakening point (parameter 2.6.4) to 100% x U
nmotor
.
Equal to parameter 2.1.11 in HVAC parameter group. Changing this parameter automatically
changes this as well
2.1.15.7 Nominal frequency of the motor
Find this value f
n
on the rating plate of the motor. This parameter sets the field weakening point
(parameter 2.6.3) to the same value.
Equal to parameter 2.1.12 in HVAC parameter group. Changing this parameter automatically
changes this as well