SINUS PENTA
GUIDA ALLA
PROGRAMMAZIONE
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39.2. List of Parameters C210 to C213d
Table 113: List of parameters C210 to C213d
Parameter FUNCTION User Level MODBUS Address
C210
Automatic extension of down ramp
ENGINEERING 1210
See Table 82
and Table 86
C211 Max. time of continuous supply ENGINEERING 1211 2.00sec
C212
Duty Cycle Braking (Ton/(Toff+Ton))
ENGINEERING 1212 10%
C213
Frequency Increase for Overvoltage
Compensation
ENGINEERING 1279 0%
C213a
Torque Limit Proportional Gain due to
Overvoltage
ENGINEERING 1251 0.020
C213b
Torque Limit Integral Gain due to
Overvoltage
ENGINEERING 1252 0.010
C213c
Voltage Reference for Torque Limit
ENGINEERING 1253 100.0%
C213d
Flux Limit due to Torque Limit Activation
ENGINEERING 1254 0.0%
C210 Automatic Extension of Down Ramp
–0.01: (With Resistance); 320.00%
See Table 82 and Table 86
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 t
his
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
ramp extension (a lower rating of regenerated power allows obtaining lon
ger 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.
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