Lenze E82EV751K4C User Manual

Braking operation with external brake resistor
8200 vector 0.25 ... 11 kW
13
Braking operation
13.4
13.4.1
L
13.4-1
EDS82EV903-1.0-11/2002
13.4 Braking operation with external brake resistor
Larger momentsof inertiaor longergenerator-modeoperationrequireanexternal
brake resistor. It converts mechanical energy into heat.
The brake resistor is connected when the DC-bus voltage exceeds a threshold.
It can thus be avoided that the controller sets pulse inhibit due to the fault
”overvoltage” and the drive coasts to standstill. External brake resistors ensure
braking operation at any time.
13.4.1 8200 vector 0.25 ... 11 kW
The brake transistor integrated into the controller connects the external brake
resistor.
The threshold can be adapted to the mains voltage if you are using 400 V
controllers (8200 vector).
Code Possible settings IMPORTANT
No. Name Lenze Selection
C0174* Brake transistor 100
78 {1 %} 110
Only active with 8200 vect or 0.55 ... 11 ^ 13.4-1
s
threshold
Recommended setting
y
kW, variant for 400/500 V mains voltage
•
1
0
0
%
T
h
r
e
s
h
o
l
d
D
C
7
9
0
V
U
mains
[3/PE AC xxx V]
380
400
415
440
460
480
500
C0174
[%]
78
81
84
89
93
97
100
U
DC
[V DC]
618
642
665
704
735
767
790
• 100 % = Threshold DC 790
V
• 110 % = Brake transistor switched off
• U
DC
= Threshold in V DC
• The recommended setting allows max.
10 % mains overvoltage
Integrated brake transistor into
8200 vector 0.25 ... 11 kW
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Lenze E82EV751K4C Specifications

General

Brand	Lenze
Model	E82EV751K4C
Category	DC Drives
Language	English