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System Manual – MOVIDRIVE® compact Drive Inverters
3
Explanation of the parameters
Parameters
•
It is possible to perform a rapid motor start when standstill current is activated
because the motor is kept in an excited state. This means the motor can be started
without having to wait for the pre-magnetizing time. Recommendation: Set to 45 ...
50 %.
The standstill current function is deactivated by P710/P711 = 0. The setting is made as
a percentage of the rated motor current. The standstill current is definitely monitored by
P303 Current limit 1 / P313 Current limit 2 .
In the CFC operating mode, if no other setting is made, the lowest magnetization current
according to the motor model is always used. If P710 Standstill current 1 / P711 Stand-
still current 2 is set to a higher value, this higher value applies. This function does not
have any effect in SERVO operating mode. The rated magnetizing current will always
be set for operating modes VFC & hoist, VFC n-control & hoist and CFC if P710 is active.
A rapid start will only take place in case the set standstill current is greater than or equal
to the rated magnetizing current.
During the standstill current phase, the motor resistance is calibrated in the intervals of
the set premagnetization time if the standstill current was constant and greater than the
rated magnetizing current of the motor during the measurement interval. If a new enable
takes place before expiration of the measurement interval, there will be no calculation
of a new resistance value. The existing resistance value will still be used.
P72x Setpoint stop
function
The setpoint stop function allows for an enable function created automatically by the in-
verter depending on the main setpoint. It results in an enable process with all necessary
functions, such as premagnetization, brake control, etc. It always requires an additional
enable via terminals.
59199AEN
Figure 47: Setpoint stop function
"1"
"1"
"1"
"1"
"0"
"0"
"0"
"0"
120
60
120
60
30
0
0
t11
t11
t13
Stop
setpoint
n
[min ]
Set
-1
n
[min ]
act
-1
/Controller inhibit
CW/stop
Enable/
stop
/Brake
Integrator
input
Integrator
output
t11 up CW
t11 down CW
Stop
ramp t13
Premagnetization
time
Premagnetization
time
Brake
release time
Brake
Brake
application time release time
Brake
application time
Start
offset
P6..
P60.
P600
Summary of Contents for MOVIDRIVE compact MCH41A
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