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302 Parameters
Specifies the thermal time of the motor cable for the thermal
protection function in the control program. This value is
defined as the time to reach 63% of the nominal cable
temperature when the cable is loaded with nominal current
(parameter
).
0 s = Thermal protection of motor cable disabled
Refer to the technical data from the cable manufacturer.
1 s
0 s
Thermal protection of motor cable disabled.
1 = 1 s
1…50000 s
Motor cable thermal time constant.
1 = 1 s
configure a monitored start/stop
control logic for external equipment such as a contactor-
controlled motor cooling fan.
This parameter selects the signal that starts and stops the fan.
0 = Stop
1 = Start
The output controlling the fan contactor is to be connected to
parameter
, bit 1. On and off delays can be set for the
fan by
and
respectively. A feedback signal from
the fan can be connected to an input selected by
; the
loss of the feedback will optionally trigger a warning or fault
(see
and
b6
b6)
Off
0 (function disabled).
0
On
1.
1
Running
(see page
2
). -
Defines a start delay for the motor fan.
The delay timer starts when the control source selected by
parameter
switches on. After the delay, bit 1 of
switches on.
0 s
0…42949673 s
Motor fan start delay.
1 = 1 s
No.
Name/Value
Description
Def
/
FbEq16
100%
63%
100%
Time
Time
Cable thermal time
Cable current
Temperature rise
Содержание ACS880-x04
Страница 1: ... ABB INDUSTRIAL DRIVES ACS880 primary control program Firmware manual ...
Страница 4: ......
Страница 18: ...18 Using the control panel ...
Страница 24: ...24 Control locations and operating modes ...
Страница 111: ...Application macros 111 Fieldbus control macro This application macro is not supported by the current firmware version ...
Страница 112: ...112 Application macros ...
Страница 496: ...496 Additional parameter data ...
Страница 544: ...544 Fault tracing ...
Страница 602: ...602 Control chain diagrams ...