SEW-Eurodrive MOVITRAC 07, Системное руководство

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System Manual – MOVITRAC® 07
Explanation of the parameters
Parameters
700 Operating mode (setting also
on the operating panel with
, P-01)
0 / VFC (field-oriented voltage flux control mode) or
VFC & HOIST (field-oriented control mode for hoist applications, can
only be set in MOVITOOLS)
3 / VFC & DC BRAK. (field-oriented control mode with DC braking)
4 / VFC &FLY.START (field-oriented control mode with flying restart circuit)
21 / V/f character. (voltage/frequency controlled mode)
22 / V/f & DC BRAKING (voltage/frequency controlled mode with DC brak-
ing)
71_ Standstill current function
The inverter injects a current into the motor with the standstill current function while the motor is at a standstill. This
allows the inverter to fulfill the following functions:
•
The standstill current prevents condensation forming and freezing (in particular on the disk brake) when the ambient
temperature of the motor is low. Set the current to a level which does not result in the motor overheating. Recom-
mendation:The motor housing should be hand-hot.
• You can start the motor without a premagnetization time if you activate the standstill current. Recommendation: Set
to 45 - 50 % for hoists.
You can deactivate the standstill current function by setting P710 = 0. Set the standstill current as a percentage of the
motor rated current. The standstill current cannot exceed the current limit (P303).
The standstill current can be switched off by /CONTROLLER INHIBIT = 0.
When the standstill current function is activated, the output stage remains enabled even in the "No enable" status, in
order to inject the motor standstill current.
The standstill current is not switched off by pressing the Stop/Reset button.
You can switch off the standstill current at any time using the controller inhibit. To do this, you must program an input ter-
minal to controller inhibit.
You must program an input terminal to controller inhibit before activating the standstill current function. Otherwise, the
output stage will be energized directly.
710
•
Standstill current function 0 ... 50 % I
Mot
72_ Setpoint stop function (only in units with expanded functions or LOGODrive units)
Use the P720 Setpoint stop function to enable the inverter automatically depending on the main setpoint. The inverter is
enabled with all necessary functions such as premagnetization and brake control. In addition, always enable the drive
via terminals.
720
•
Setpoint stop function off / OFF
on / ON
721
•
Stop setpoint 0 ... 30 ... 500 [rpm]
722
•
Start offset 0 ... 30 ... 500 [rpm]
No. OP Name Description
P6..
P60.
P600