Danfoss Metasys N2 Operating Instructions

NOTICE
The ETR timer function does not work when 1-10 Motor
Construction = [1] PM, non salient SPM.
NOTICE
For correct operation of the ETR function, the setting in
parameter 1-03 Torque Characteristics must fit the
application (see description of parameter 1-03 Torque
Characteristics).
1-93 Thermistor Source
Option: Function:
NOTICE
This parameter cannot be adjusted
while the motor is running.
Select the input to which the thermistor (PTC
sensor) should be connected. An analog
input option [1] Analog Input 53 or [2] Analog
Input 54 cannot be selected if the analog
input is already in use as a reference source
(selected in parameter 3-15 Reference 1
Source, parameter 3-16 Reference 2 Source or
3-17 Reference 3 Source).
When using MCB 112, [0] None must always
be selected.
[0] * None
[1] Analog
Input 53
[2] Analog
Input 54
[3] Digital input
18
[4] Digital input
19
[5] Digital input
32
[6] Digital input
33
NOTICE
Digital input should be set to [0] PNP - Active at 24 V in
5-00 Digital I/O Mode.
2-00 DC Hold/Preheat Current
Range: Function:
50
%*
[ 0 -
160 %]
Enter a value for holding current as a percentage
of the rated motor current I
M,N
set in
parameter 1-24 Motor Current. 100% DC holding
current corresponds to I
M,N
.
This parameter holds the motor (holding torque)
or pre-heats the motor.
2-00 DC Hold/Preheat Current
Range: Function:
This parameter is active if [1] DC hold/Motor
Preheat is selected in parameter 1-80 Function at
Stop.
NOTICE
Parameter 2-00 DC Hold/Preheat Current have no effect
when 1-10 Motor Construction = [1] PM, non salient SPM.
NOTICE
The maximum value depends on the rated motor
current.
Avoid 100 % current for too long. It may damage the
motor.
2-10 Brake Function
Option: Function:
Available selections depend on 1-10 Motor
Construction:
[0] Asynchron:
[0] Off
[1] Resistor brake
[2] AC brake
[1] PM non salient:
[0] Off
[1] Resistor brake
[0] Off No brake resistor installed.
[1] Resistor
brake
Brake resistor incorporated in the system, for
dissipation of surplus brake energy as heat.
Connecting a brake resistor allows a higher DC-
link voltage during braking (generating operation).
The resistor brake function is only active in
frequency converters with an integral dynamic
brake.
[2] AC brake AC Brake only works in compressor torque mode
in parameter 1-03 Torque Characteristics.
2-17 Over-voltage Control
Option: Function:
[0] Disabled No OVC required.
[2] * Enabled Activates OVC.
NOTICE
Parameter 2-17 Over-voltage Control has no effect when
1-10 Motor Construction = [1] PM, non salient SPM.
NOTICE
The ramp time is automatically adjusted to avoid
tripping of the frequency converter.
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MG11F402 - Rev. 2013-12-16 95
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Danfoss Metasys N2 Specifications

General

Brand	Danfoss
Model	Metasys N2
Category	DC Drives
Language	English