AKD 5000
Programming
Description of choice:
Set the desired frequency.
128 Motor thermal protection
(MOT.THERM PROTEC)
Value:
✭
No protection (NO PROTECTION)
[0]
Thermistor warning (THERMISTOR WARN)
[1]
Thermistor trip (THERMISTOR TRIP)
[2]
ETR Warning 1 (ETR WARNING1)
[3]
ETR Trip 1 (ETR TRIP1)
[4]
ETR Warning 2 (ETR WARNING2)
[5]
ETR Trip 2 (ETR TRIP2)
[6]
ETR Warning 3 (ETR WARNING3)
[7]
ETR Trip 3 (ETR TRIP3)
[8]
ETR Warning 4 (ETR WARNING 4)
[9]
ETR Trip 4 (ETR TRIP4)
[10]
Function:
The frequency converter is able to monitor the motor
temperature in two different ways:
-
Via a thermistor sensor connected to one
of the analogue inputs, terminals 53 and 54
(parameters 308 and 311).
-
Calculation of the thermal load, based on the
current load and the time. This is compared with
the rated motor current I
M,N
and the rated motor
frequency f
M,N
. The calculations made take into
account the need for a lower load at lower speeds
because of less cooling from the fan.
ETR functions 1-4 do not start calculating the load
until there is a switch-over to the Setup in which
they were selected. This enables the use of the
ETR function, even where two or several motors
alternate. For the North American market: The ETR
functions provide class 10 or 20 motor overload
protection in accordance with NEC.
Description of choice:
Select
No protection
if no warning or tripping is
required when the motor is overloaded.
Select
Thermistor warning
if a warning is desired when
the connected thermistor - and thus the motor
- gets too hot.
Select
Thermistor trip
if cutting out (trip) is desired when
the connected thermistor - and thus the motor
- overheats.
Select
ETR Warning 1-4
, if a warning is to come
up on the display when the motor is overloaded
according to the calculations.
Select
ETR Trip 1-4
if tripping is desired when the
motor is overloaded according to the calculations.
The frequency converter can also be programmed
to give off a warning signal via one of the digital
outputs, in which case the signal is given both for
warning and for trip (thermal warning).
✭
= factory setting. () = display text [] = value for use in communication via serial communication port
MG.50.R3.02 -
71
Содержание AKD 5001
Страница 12: ...AKD 5000 Introduction Ordering form AKD 5000 Series Typecode MG 50 R3 02 11 ...
Страница 25: ...AKD 5000 Type F IP54 MG 50 R3 02 24 ...
Страница 29: ...AKD 5000 Compact IP 54 AKD 5001 5006 200 240 V AKD 5001 5011 380 500 V MG 50 R3 02 28 ...
Страница 33: ...AKD 5000 MG 50 R3 02 32 ...