Parameters/Functions; General Information On Parameters/Functions; Reset; Brake Application Time - DEMAG DIC 002 Series Operating Instructions Manual

8

Parameters/functions

8.1

General information on parameters/functions

The following tables contain basic values for the parameters that are also set when the unit is supplied.
A PC with Parcom Compact parameter programming software which is connected to one of the optional RS 232
modules 537 769 84 or 537 723 84 via data cable 537 237 84 can be used to configure and program the inverter
parameters.
Alternatively, the keypad unit can also be used to program the parameters.
Control Level 1 is described in these quick-step operating instructions. For further information, see "Dedrive
Compact STO frequency inverter application notes/operating instructions".
8.2

Reset

The Program 34 parameter makes it possible to acknowledge an error message and to restore the default set‐
ting. The display of the keypad unit shows the "dEFLt" or "rESEt" message and the LEDs additionally indicate the
status of the frequency inverter.
Parameters
No. Name
34 Program
Tab. 62
8.3

Brake application time

The inverter calculates an internal frequency cut-off value on the basis of the brake application time and the de‐
celeration ramp. This also considers a programmed DC post-magnetization time parameter. At the moment the
setpoint value is switched off, the inverter compares the actual output frequency with the calculated cut-off value.
In principle, there are 3 possibilities as shown in cases 1 to 3.
Case 1: Brake application time is shorter than the remaining deceleration time
Fig. 43 Case 1: Brake application time is shorter than the remaining deceleration time
1 Output frequency
2 SW-Step 1+ input
3 "Release brake" signal
Tab. 63
In case 1, the brake application time is shorter than the remaining deceleration time. The "Release brake" signal
is switched off as soon as the value drops below the cut-off value. The brake is no longer excited and the me‐
chanical brake starts to brake when its application time has elapsed. If the brake application time is correctly pro‐
grammed, the ramp is at zero at the same moment and modulation is switched off.
64
Value
123 A reset is carried out, an existing error is acknowledged.
The display of the keypad unit shows the "rESEt" message.
4444 The programmed parameters are overwritten with the default values.
The display of the keypad unit shows the "dEFLt" message.
4 "Modulation on" message
5 Calculated cut-off value
t Brake application time
B
t Delay time
VZ