【正文】 motor. Rated frequency With the adjusted frequency the inverter reaches a maximal output voltage. The adjustment of the rated motor frequency is typical in this case. Note: Motors can overheat when the rated frequency is UAincorrectly adjusted! Adjustment range: Resolution: Factory setting: 0...400 Hz 0,0125 Hz 50 Hz 100% CP. 16 f GB 16 Operation of the Unit Special Adjustments The following parameters serve for the optimization of the drive and the adaption to certain applications. These adjustments can be ignored at the initial startup. With this parameter a regulated output voltage in relation to the rated frequency can be adjusted. For that reason voltage variations at the input as well as in the intermediate circuit only have a small influence on the output voltage (U/fcharacteristic). The function allows, among other things, an adaption of the output voltage to special motors. Adjustment range: Resolution: Factory setting: Note: 1...650 V (off) 1V 650 V (off) EnterParameter GB Voltage stabilization In the example below the output voltage is stabilized to 230 V (0% boost). UN/UA 250 V =230 V 190 V UA bei UN = 250V unstabilized UA bei UN = 250V stabilized UA bei UN = 190V stabilized UA bei UN = 190V unstabilized UN = mains voltage UA= output voltage =50 Hz f GB 17 Operation of the Unit Carrier frequency The switching frequency with which the power modules are clocked can be changed depending on the application. The employed power stage determines the maximum switching frequency as well as the factory setting (see manual: part2). Refer to following list to learn about influences and effects of the switching frequency. low switching frequency ? less inverter heating ? less discharge current ? less switching losses ? less radio interferences ? improved concentricity with low speed high switching frequency ? less noise development ? improved sinewave simulation ? less motor losses GB GB Adjustment range (dep. on power circuit): 2/4/8/12/16 kHz Factory setting:depending on power circuit Note:EnterParameter At switching frequencies above 4 kHz pay absolute attention to the max. motor line length in the technical data of the power circuit manual (Part 2). Step frequency 1...3 Input I1 Three fixed frequencies can be adjusted. The fixed frequencies are selected with the inputs I1 and I2. Adjustment range: Resolution: Factory : Factory : Factory : 400...400 Hz 0,0125 Hz 5 Hz 50 Hz 70 Hz Input I2 Input I1 and I2 If adjustments are made that are outside the fixed limits of and , then the frequency is internally limited. The negative values are released in application mode. The rotation source of the fixed frequencies is not changed by , it always corresponds to = 2. GB 18 Operation of the Unit DCbraking / Mode With DCbraking the motor is not decelerated by the ramp. Quick braking is caused by . voltage, which is applied onto the motor winding. This parameter determines how the dcbraking is triggered. Value 0 1 Activation DCbraking。 the drive should accelerate from 10 Hz to 60 Hz. delta f = 60 Hz 10 Hz = 50 Hz = (100 Hz / 50 Hz) x 5 s = 10 s GB Deceleration time The parameter determines the time needed to decelerate from 100 Hz to 0 Hz. The actual deceleration time is proportional to the frequency change. 100 Hz –––––– x actual deceleration time = delta f Adjustment range: Resolution: Factory setting: 1。 max. 30 V DC, 1 A Relay 2/switching cont. FLC Connection of the control In order to prevent a malfunction caused by interference voltage supply on the control inputs, the following directions should be observed: ? Use shielded/drilled cables ? Lay shield on one side of the inverter onto earth potential ? Lay control and power cable separately (about 10...20 cm apart) ? Lay crossings in a right angle (in case it cannot be prevented) EMC GB 7 Installation and Connection Digital Inputs X2A 1 Use of internal voltage supply 10 11 14 15 16 20 22 PE Use of external voltage supply GB X2A 13...30V DC 177。100 Hz CRF COM I1 I2 F R ST Uout 0V RLA RLB FLA FLB Supply voltage for set value poti Mass for analog In and Outputs I1 + I2 = Fixed frequency 3。0% smoothed Ri = 2,1 k? 23 PE + 13...30VDC20...30 VDC Analog Inputs Connect unused analog inputs to mon, to prevent set value fluctuations! External analog setpoint setting (see ) X2A 1 2 3 4 5 6 7 8 9 0...177。 Forward has priority Power modules are enabled。 KEB Table of Contents 1. Installation and Connection ......................... 4 Control Circuit GENERAL .......................................... 4 Assignment of Terminal Strip X2A ................................ 4 Connection of the Control ............................................. 5 Digital Inputs ................................................................. 5 Analog Inputs ................................................................ 5 Voltage Input / External Power Supply .......................... 6 Digital Outputs .............................................................. 6 Relay Output ................................................................. 6 Analog Output ............................................................... 6 Voltage Output .............................................................. 6 Control Circuit BASIC ................................................. 7 Assignment of Terminal Strip X2A ................................ 7 Connection of the Control ............................................. 7 Digital Inputs ................................................................. 8 Analog Inputs ................................................................ 8 Analog Output ............................................................... 8 Relay Outputs ............................................................... 8 GB 2.