Lenze 8200 Frequency inverters - Manual (Page 193)

Configuration
8200SHB0199 7-56
7.5.14.5 DC-injection brake (DCB)
Code Name Possible settings IMPORTANT
Lenze Choice Info
C019 Threshold auto DC
brake
821X/822X/824X 0.10 0.10 {0.02 Hz} 5.00
0.00 {0.02 Hz} 5.00 HVAC only
C035* ¤ Selection DC brake -0- -0- Selection of brake voltage under
C036
-1- Selection of brake current under
C036
HVAC only
C036 Voltage for DC brake * 0.00 {0.02 %} 40.00 *depends on the unit
Voltage/current for
DCB 0.00 {0.02 %} 150.00 HVAC only
C106 Holding time for
autom. DC injection
brake
820X 0.00 0.00 {0.01s} 50.00
821X/822X
824X
0.02 0.00 {0.01s} 999.00
C196* ¤ Input condition
autom. DC injection
brake
-0- -0- DC brake active at C050 < C019
-1- DC brake active at C050
< C019 and Setpoint < C019
HVAC only
Series “Standard”:
Function - DC braking enables fast deceleration of the drive to standstill without using a brake unit.
Activation - Via terminal
- C007 = -3-, -7-, -14-, 19:
HIGH level at terminal E2
The DC-injection brake remains active until a LOW signal is reassigned to terminal E2.
- C007 = -0-, -5-, -11-:
HIGH level at terminal E3
The DC-injection brake remains active until a LOW signal is reassigned to terminal E3.
- Automatically
- If the field-frequency setpoint falls below the operating threshold, the DC-injection brake will be
activated for the holding time set under C106. Afterwards, the drive will set controller inhibit.
Important The DC-motor current is directly set under code C036 (voltage for DC brake). Please observe, that
the connected motor can be overheated by overlong operation and excessive DC-motor current.
Special features
820X Fixed operating threshold for DCB f
d
= 0.1 Hz.
821X/822X/824X Operating threshold for DC brake adjustable under C019.
The display value of the parameter can be related to an application datum.
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