Manual – MOVIPRO® SDC with DeviceNet Interface
111
10
Explanation of the parameters
Parameterization of MOVIPRO
®
P71x Standstill current
P710/P711 Stand-
still current 1/2
Setting range: 0 – 50 % I
Mot
The standstill current is used for injecting an adjustable current into the motor when the
motor is at a standstill and the brake is applied. The standstill current can be switched
off by "/controller inhibit = 0". This allows the following functions to be carried out:
• At low ambient temperatures of the motor, it is possible to prevent the danger of
condensation formation and freezing (in particular of the disk brake). Overheating the
motor must be avoided when setting the current.
Recommendation:
Motor housing
should be hand hot.
• 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 % for hoists.
The standstill current function is deactivated by P710/P711 = 0. The setting is made in
% of the rated motor current. The standstill current is monitored for
P303/P313 Current
limit 1/2
(page 99) in any case.
• 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/P711 is set to a higher
value, this higher value applies.
• This function does not have any effect in "Servo" operating mode. No current is im-
pressed.
• The rated magnetizing current will always be set for operating modes "VFC & Hoist",
and "VFC n-control & Hoist" if P710 is active.
• Else, a rapid start will only take place if 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 or
the same as the rated magnetizing current of the motor during the measurement inter-
val. 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
1
2
0
0
I
