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PROGRAMMING
INSTRUCTIONS
SINUS PENTA
337/452
3 7.2.
List of Parameters C210 to C212
Table 100: List of parameters C210 to C212.
Parameter
FUNCTION
User Level
MODBUS Address
DEFAULT
VALUES
C210
Automatic extension of down ramp
ENGINEERING
1210
See Table 74
and Table 78
C211
Max. time of continuous supply
ENGINEERING
1211
2.00sec
C212
Duty Cycle Braking (Ton/(Toff+Ton))
ENGINEERING
1212
10%
C210
Automatic Extension of Down Ramp
C210
Range
-1 ÷ 32000
–0.01: (With Resistance); 320.00%
Default
See Table 74 and Table 78
Level
ENGINEERING
Address
1210
Function
If
C210
= [With Resistor]
, this parameter commands enabling resistor and DC bus relating
to this operating condition, allowing dissipating energy regenerated from the motor. If no
braking resistor is used, energy regenerated from the motor cannot be dissipated. In this
condition, the down ramp is extended if the variation in DC bus voltage is too rapid or
exceeds certain threshold values. Set a higher value in parameter
C210
for a more
sensitive ramp extension (a lower rating of regenerated power allows obtaining longer
ramps), thus avoiding overvoltage.
NOTE
Parameter
C210
decreases the DC bus voltage threshold setting the ramp extension.
The k factor is as follows:
k = Pout/(Pmax*100*
C210
),
k ranges from 1.0 to 1.3
The greater the k factor, the lower the DC bus level setting the ramp extension.
For example, when
C210
=0.2, power Pout shall exceed 5% of Pmax in order to obtain
k>1.
When
C210
=2, 0.5% of Pmax is required to obtain k>1.
NOTE
Parameter
C210
is interlocked with parameter
P031
(Gradient variation acceleration
reset) so that
C210
–0.01:With resistance
cannot be programmed in conjunction with
P031
= 0:No.
C211 Max. Time of Continuous Supply for Braking Resistance
C211
Range
0 ÷ 32000
0 ; 320.00 sec
Default
200
2.00 sec
Level
ENGINEERING
Address
1211
Function
This parameter determines the max. continuous operating time required for the braking
resistance. If the braking resistance is used for a time
C211
without being activated, the
braking resistance command is automatically disabled for a time of inactivity set in
C212
.