6 9
KEB COMBIVERT F4-C
20
Name: Basis
29.01.98
Name: Basis
Chapter Section Page Date
© KEB Antriebstechnik, 1997
All Rights reserved
Functional Description Special Functions
6.9.6.c Example: Desired direction of rotation forward: negative holding frequency
With this parameter the function is activated/deactivated. In addition to it the status
display can be changed over. Pn.51 is set programmable.
Value Function
0 Function deactivated (default)
1 Braking control active, indication boff/bon
2 Braking control active, indication acc/dec/con
The status display during the holding phases depends on the adjustment of the mode
for the braking control (see Fic. 6.9.6.c).
At - Pn.51 = 1 indication of the status boff (brake released) or bon (brake activated)
- Pn.51 = 2 indication of the nornal ramp status
Additionally a digital output for the control is to be programmed (refer to Chapter 6.3).
For the monitoring of the load transfer to the inverter a minimum load level can be
adjusted in this parameter. In case the brake shall be released a the start the load
must not be smaller than the adjusted level. Otherwise the error E. br is triggered.
The monitoring is deactivated when Pn.58 is adjusted to 0.
Pn.51 Mode
Braking Control
Pn.58 Minimal Load Level
Error Message E. br
Set frequency
Braking
Actual frequency
Set direction of rotation
FOR
Brake
closed
open
Inverter status LS
facc fcon fcon
boff boff boff
facc fcon rdec
fcon fcon fdec
LS
bon bon bon
Starting
frequency Pn.54
Stopping
frequency Pn.57
Starting time 1
Pn.52
Starting time 2
Pn.53
Stopping
time 1
Pn.55
Stopping
time 2
Pn.56
set
frequency
control