7.5 Induction motor control with analog setpoint interface

Transcription

1 .5 nduction motor control with analog setpoint interface nduction motor control with analog setpoint interface 6SN1122 0BA1 0AA The following appropriate control components are available for standard induction motors without rotary encoder (Order No. 6SN1122 0BA11 0AA1). Up until now, the functionality of the board above was supplied in two versions (Order No. 6SN1122 0BA1 0AA0) Basic version with fixed setpoints and motorized potentiometer Optional with analog setpoint interface and analog output nduction motor control 3 / 0.8 Nm 0.8 Nm X1 R E E2 E3 E4 E5 E6 E E8 E9 9 X2 A91 A A11 A21 A31 A41 A51 A AS1 AS2 + P Software Version label 3 / 0.8 Nm Figure SODRVE 611 (PJ)

2 nduction motor control with analog setpoint interface Note When using non PELV circuits connected to terminals AS1, AS2, the connector must be prevented from being incorrectly inserted using plug coding (refer to EN , Section 6.4). Order No. of the coding, refer to Catalog NC Note Only PELV circuits may be connected at connector X432 pin15 (FR ). SODRVE 611 (PJ) -119

3 .5.1 Select terminal functions Select terminal functions The select input terminals E1 to E9 (max. 9) are freely programmable. A control parameter is assigned to each select terminal, in which the code number of the selected function is entered. Table -13 Select terminal 2nd torque limit value Oscillation Reset fault memory (reset) Ramp function generator 1/2 Clockwise/counter clockwise ncrease setpoint Decrease setpoint Ramp time = 0 ntegrator inhibit, speed controller otor selection (max. 2 terminals) Gearbox stage (max. 3 terminals) Setpoint enable Fixed setpoint selection (max. 3 terminals) When selected, if a speed, which can be parameterized, is exceeded, the 2nd torque limit is activated. Generates an internal frequency setpoint with adjustable frequency and speed. Acknowledges a fault/error message after the cause has been removed. Note: Terminal 65 (controller enable) must be open. When selected, a changeover is made from ramp up/ramp down time 1 to ramp up/ramp down time 2. The ramp up/ramp down times 1 and 2 can be separately entered for each of the maximum of four motor data sets. Specifies the motor direction of rotation Terminal open: Clockwise phase sequence Terminal energized: Counter clockwise phase sequence Note: Positive analog setpoint, V otorized potentiometer function. Starting from an initial value which can be parameterized, the speed setpoint can be continuously adjusted using these two select terminals. f the enable voltage is connected to this terminal, the ramp function generator is bypassed. The integral component of the P speed controller can be inhibited via this terminal ( component=0ms). A total of four different motor data sets can be selected using these terminals. Each data set is assigned the following parameters: otor data, setpoint normalization, ramp function generator, controller parameters, current and power limiting and frequency bandstop filter. A total of 8 parameter sets for speed monitoring, torque limiting and torque monitoring can be entered using these terminals. Terminal open circuit: Digital zero setpoint Terminal selected: Setpoint enabled (analog setpoint or speed setpoint) A maximum of 16 speed setpoints can be selected. Setpoint 1 corresponds to the standard setpoint (analog setpoint and the internal setpoint); setpoints 2 to 16 are fixed setpoints which can be parameterized SODRVE 611 (PJ)

4 Select relay functions/signals.5.2 Select relay functions/signals The select relay terminals A11 to A61 (max. 6) can be freely programmed. A control parameter is assigned to every select relay, in which the code number of the selected function is entered. Table -14 Select relay n act =n set (ramp up completed) n act =n set (actual) The relay pulls in, if the ramp up sequence has been completed after a setpoint step. Speed fluctuations as a result of load surges do not cause the signal to be withdrawn. The relay pulls in, if the actual value lies within a tolerance bandwidth of the setpoint. Speed fluctuations as a result of load surges can cause the signal to be withdrawn. d < dx The relay pulls in, if the actual torque falls below the threshold which has been parameterized (this becomes active for ramp up completed after a time which can be parameterized). n act < n min The relay pulls in, if the speed actual value falls below the threshold which can be parameterized. n act < n x The relay pulls in, if the speed actual value falls below the threshold which can be parameterized. 2 t alarm otor overtemperature alarm Heatsink overtemperature, alarm Variable relay function (max. 2 terminals) otor 1/2/3/4 active The relay drops out when the parameterized 2 t limit of the motor is exceeded. The relay drops out for an overtemperature condition. f the temperature still continues to increase, a fault signal is output and the pulses canceled after a time which can be parameterized. The relay drops out if the temperature switch of the main power module heatsink responds. The drive shuts down with a fault message/signal after 20 s. Any control program variable can be monitored using this function. The relay pulls in, if motor 1/2/3/4 is active. SODRVE 611 (PJ) -121

5 .5.3 nterface overview induction motor control nterface overview induction motor control Table -15 Term. No A91 A Desig. Speed setpoint 1 Differential input Speed setpoint 2 Differential input (supplementary setpoint) 2 Analog output, DA1 Reference voltage for DA1 Analog output, DA2 Reference voltage for DA2 Note: The analog output is only available with the appropriate control version. Enable potential 5) Pulse enable: The relay start inhibit is energized using terminal 663, and when it opens, the firing pulses are inhibited and the motor is switched to a torque free condition. Controller enable: To power up the drive, in addition to terminal 65, terminals 663 and 81 must also be energized. f terminal 65 is opened, the motor brakes with the selected deceleration time (ramp down time). The pulses are canceled when n min is reached. Ramp function generator fast stop: After opening terminal 81, the motor brakes along the torque limit. The pulses are canceled, or the motor remains magnetized, when n min is reached. Type 1) O Typ. voltage/ limit values 0 V... ±10 V 0 V... ±10 V 10 V V max. 3 ma 10 V V max. 3 ma +24 V +21 V V +13 V V +13 V V ax. cross sect. E1 to E9 Freely programmable select terminals +13 V V AS1 AS2 A11 to A RS 232C X432 X411 Connecting a BERO to monitor the maximum speed 3)4) Relay, start inhibit (checkback signal, terminal 663) Relay, start inhibit (checkback signal, terminal 663) Freely programmable relay signals Signals, center contact Axis specific signal Ready or fault Serial interface for computer supported start up (start up program) NC NO NO NC max. 250V AC /1A 30 V DC /2 A 30 V/6 A 1) =input; O=output; NC=NC contact; NO=NO contact (for signal, NO=high, closed / NC=low, open) 2) s only available in the appropriate control version 3) X412, X432 is only available for Order No. 6SN1122 0BA11 0AA1. 4) BERO type: 3 conductor PNP NO contact, e.g. BERO 30 Order No.: 3RG4014 0AG01 or BERO 12 Order No.: 3RG4012 3AG01 The BERO cable/motor temperature sensing cable must be screened. 5) The terminal may only be used to enable the associated drive group. D Sub 15 pin D Sub 9 pin -122 SODRVE 611 (PJ)

6 Table -15 Term. No. Desig. X412 Possibility of connecting a motor temperature sensor KTY84 acc. to EC 134 3) or PTC X151/351 Equipment bus Type 1) Typ. voltage/ limit values 1) =input; O=output; NC=NC contact; NO=NO contact (for signal, NO=high, closed / NC=low, open) 2) s only available in the appropriate control version 3) X412, X432 is only available for Order No. 6SN1122 0BA11 0AA1. 4) BERO type: 3 conductor PNP NO contact, e.g. BERO 30 Order No.: 3RG4014 0AG01 or BERO 12 Order No.: 3RG4012 3AG01 The BERO cable/motor temperature sensing cable must be screened. 5) The terminal may only be used to enable the associated drive group. ax. cross sect. D Sub 15 pin SODRVE 611 (PJ) -123