Commissioning
5–13
1070 066 028-101 (01.05) GB
5.1.8
Emergency braking
When the external enable signal FG has been deactivated, the drive is
braked with the braking ramp selected via P12 until the output frequency f = 0
is reached.
The braking ramp is extended if there is danger of exceeding
I
max
.
P19 (A-0-0019)
Activate emergency braking
factory
setting
all
DMs, DS
br0
(0)
br1
(1)
Coasting
emergency braking
5.1.9
Zero speed monitoring
With the help of the zero speed monitoring function, the frequency inverter
detects that the motor has stopped even without an additional motor en-
coder.
For further information, see Section 5.2.2 .
P20 (A-0-0020)
Zero speed monitoring
factory
setting
all
DMs, DS
bu0
(0)
bu1
(1)
off
on
.
The display flashes and ’bu1’ cannot be turned on if the FG enable sig-
nal had previously been active.
In this case, toggle the line voltage off/on, then select ’bu1’.
DANGER
Zero speed monitoring is only ensured if the motor is in zero speed
condition when the monitoring function is activated!