PROGRAMMING
SINUS K
MANUAL
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226
6.3.8.
M
OTOR
T
HERMAL
P
ROTECTION
S
UBMENU
The Motor Thermal Protection submenu determines the parameters relating to the software thermal protection of the
motor. See section 3.10 “MOTOR THERMAL PROTECTION” for more details.
Access page
Press PROG (Ent) to access the first page of the Motor Thermal Protection submenu. Press
↑
(Nxt) and
↓
(Prv) to scroll
through the submenus.
First page
Press PROG (Esc) to return to the Motor Thermal Protection submenu access page. Press
↑
(Nxt) and
↓
(Prv) to scroll
through the parameters.
PARAMETERS OF THE MOTOR THERMAL PROTECTION SUBMENU
C70 Thermal p.2/4
P
C70
R
NO, YES, YES A, YES B
D
NO
Activates the motor thermal protection.
NO: Motor thermal protection disabled.
YES: Motor thermal protection enabled with pick–up current independent of output
frequency.
YES A: Motor thermal protection enabled with pick–up current depending on output
frequency, with forced air–cooling system.
***
F
YES B: Motor thermal protection enabled with pick–up current depending on output
frequency, with a fan keyed to the motor shaft.
C71 Motor 3/4
P
C71
R
1% ÷120%
D
105%
current =****%
F
Determines the pick–up current expressed as a percentage of the motor rated
current.
C72 M. Therm.4/4
P
C72
R
5÷3600s
D
600s
const. =****s
F
Determines the motor thermal time constant.
PROG SAVE
Menu Mot.ther.pr
Ent Prv Nxt
PROG SAVE
Thermal prot.1/4
Ent Prv Nxt