Interroll DL Series - Integrated Thermal Protection; Frequency Inverter

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Version 1.2 (08/2022) en
Translation of original operating instructions
Assembly and installation
inverter or the control.
Fordynamicapplicationsthatcausetheratedcurrenttobebrieyexceeded,additionalprotectivefunctions,
such as I2t motor protection and minimum speed monitoring, must be enabled. However, maximum values for
current and torque must not be exceeded at any time. Complete overload protection of the motor only exists if
the aforementioned protective functions in the frequency inverter or control are enabled in addition to analysis of
thethermalcircuitbreaker.Forcorrectparameterization,Interrollrecommendscontactingthemanufacturerofthe
frequency inverter or control.
The following parameters apply to the synchronous motor installed in Interroll applications (BM8465, BM8460,
BM8461):
• Thermal circuit breaker: Enabled
• Blocking protection: Enabled via minimum speed monitoring
• I
2
t: 25 A
2
s (400 V)
• I
2
t: 75 A
2
s (230 V)
P
N
U
N
I
N
I
0
I
max
η
J
R
M
N
M
0
M
max
R
M
L
sd
L
sq
k
e
T
e
k
TN
U
SH
W V A A A kg x
cm
2
Nm Nm Nm Ω mH mH V/
krpm
ms Nm/
A
V
425 400 1,32 1,32 3,96 0,86 0,42 1,35 1,35 4,05 17,60 49,80 59,00 80,80 6,70 1,02 33
425 230 2,30 2,30 6,90 0,87 0,42 1,35 1,35 4,05 5,66 16,26 19,42 45,81 6,86 0,59 19
8.8.5 Integrated thermal protection
CAUTION
Accidental motor start!
Crushinghazardforngers.
¾ Connect the integrated thermal circuit breaker to an external control device that interrupts the current
supply to the motor at all poles in case of overheating.
¾ After the thermal circuit breaker has tripped, examine and remove the cause for overheating before the
current supply is reactivated.
The standard maximum switching current of the thermal circuit breaker is 2.5 A. For other options, please contact
Interroll.
For operational safety, the motor must be safeguarded against overload with an external motor protection, as well as
anintegratedthermalprotection;otherwise,thereisnowarrantyifthemotorfails.
8.8.6 Frequency inverter
Asynchronous drum motors can be operated with frequency inverters. Frequency inverters from Interroll are general
adjustedtofactorysettingandhavetobeparameterizedfortherespectivedrummotor.Forthispurpose,Interrollcan
supplyparameterizationinstructions.Inthiscase,pleasecontactyourlocalInterrollpartner.
• IfnofrequencyinverterfromInterrollisused,thefrequencyinvertermustbecorrectlyparameterizedaccordingto
thespeciedmotordata.Interrollcanprovideonlyverylimitedsupportforfrequencyinvertersthatarenotbeing