MPH-02, MPB-02, MPD-02
Drive Control
6-89
DOK-INDRV*-MP*-02VRS**-FK01-EN-P
In parameter P-0-0810 it is possible to set a threshold value, for triggering
the warning
E2814 Undervoltage in mains
, higher than the minimum
value of the mains connection voltage range; this possibly enables the
control master to react to the situation in the mains. The tolerance limit
can be influenced via the level of the threshold value.
The control section of the converter receives data on the properties of the
charging circuit hardware for the soft start via parameter
P-0-0809,
Properties of charging circuit
. The content of this list parameter is
stored in write-protected form on the hardware of the converter power
section and can be displayed for test purposes.
The converter signals the status of power supply, mains voltage, DC bus
charging status and the readiness for operation of the supply unit via
parameter
P-0-0861, Status word of power section
. This allows
diagnosing the converter in the case of error.
The readiness for operation of the supply section of a converter is
displayed via a bit in P-0-0861. This status information has to be assigned
to the "Rel1" contact of the control section; the "Rel1" contact has to be
integrated in the mains contactor control circuit. There mustn’t be any
other information assigned to the "Rel1" contact because otherwise the
power of the converter cannot be switched off automatically!
See also "Digital Inputs/Outputs" in chapter "Extended Drive Functions"
Note:
Data on the hardware-side control of converters are contained
in the documentation of the device.
Information on the Braking Resistor
Converters of the HSC02.1 type are equipped with an integrated braking
resistor. For the devices with higher maximum current it is possible to
connect an external braking resistor as an alternative to the internal
braking resistor (device option). The presetting for whether an internal or
external braking resistor becomes active is made in parameter
P-0-0860,
Control word of power section
.
Converters of the HCS03.1 type do not have an internal braking resistor.
Depending on the device option it is possible, however, to connect an
external braking resistor.
When an external braking resistor is used, its technical data have to be
entered in parameter
P-0-0858, Data of external braking resistor
. If an
internal braking resistor is available, its data are contained on the
manufacturer side in parameter
P-0-0859, Data of internal braking
resistor
and stored in write-protected form in a parameter memory on the
power section.
The external braking resistor has to be activated in parameter
P-0-0860,
Control word of power section
!
Note:
When an external braking resistor is connected, the minimum
resistor value that can be connected has to be taken into
consideration.
See documentation for the respective device!
For the switch-on/switch-off threshold of the braking resistor in the case of
converters of the HCS type there are
•
reference values that can be selected and
•
dynamic adjustment to the current load of the braking resistor.
Identifying the Charging Circuit
for DC Bus
Status of Power Supply
Supply Section Ready for
Operation
External/Internal Braking
Resistor
Switch-On/Switch-Off Threshold
of Braking Resistor
Courtesy
of
CMA/Flodyne/Hydradyne
▪
Motion
Control
▪
Hydraulic
▪
Pneumatic
▪
Electrical
▪
Mechanical
▪
(800)
426-5480
▪
www.cmafh.com