GUIDE TO THE
REGENERATIVE APPLICATION
SINUS PENTA
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150
7) Possible
failures:
If no failure occurred, go to step 8; otherwise, check links to the drive and check if alarm
messages are displayed. The start screen shows the value of the DC-bus voltage (
M501
);
before closing the ENABLE-A and ENABLE-B, this measure should be more or less equal
to the mains voltage (
M502
) multiplied by 1.41; after closing the ENABLE, this value
should tune to the setpoint in
P500
.
8) Additional
parameter
alterations:
Note that you can change
Cxxx
parameters in the CONFIGURATION menu only when the
drive is DISABLED.
We suggest that you write down any custom parameter. Parameters that may need
alterations are
C503
(enabling mode of MDO4 relay for motor drive activation) and
C502
(alarms relating to the supply mains).
9) Alarm
reset:
If an alarm trips, find the cause responsible for the alarm and reset the equipment: enable
MDI3 input (terminal 16) for some time, or press the RESET key in the display/keypad.
10) Motor
drive
starting:
Start up the motor drive as described in the Installation Instructions manual. When the
motor drive is operating, make sure that the DC-bus voltage (displayed in the Measure
submenu) is kept approx. constant and equal to the setpoint; also make sure that the
mains is stable. If load variations strongly affect DC-bus voltage or if it is unsteady, adjust
the voltage regulator parameters (
P510
to
P515
).
If overvoltage alarms trip, do the following:
1) For the regenerative drive sizes provided with a built-in braking unit (up to S32
included), you can install a braking resistor between power terminals 47/+ and
48/B of the regenerative drive.
2) For the regenerative drive sizes which are not provided with a built-in braking unit
(size > S32), you can use the external braking unit. Configure the external braking
unit with a trip voltage higher than the bus setpoint of the regenerative drive
(
P500)
but lower than the overvoltage value.
Voltage Class
Overvoltage
Threshold
2T
443.3
4T
828.6
5T
992.4
6T
1198.2
