KOLLMORGEN 60WKS-M240/22 motor drive

Description

KOLLMORGEN 60WKS-M240/22 motor drive

KOLLMORGEN 60WKS-M240/22 motor drive

The proportion gain of the PI speed controller can be increased by turing P305 clockwise (the control becomes stiffer). When P305 is hard left, then R307 fixes the gain at about 10. The integral component is fixed by C304 and R307 to 0.1 F x 100 k
= 10 ms. Reducing C304 improves the response speed of the amplifier, but increases the tendency to oscillation. There are very few cases where the standard values need to be changed. Adjust P305 while the amplifier is active and the motor is at stillstand (setpoint voltage = 0 V) by turning it clockwise until oscillation begins (which is very easy to see on an oscilloscope connected to the current monitor) and then turning it back to a position clearly below the oscillation threshold.

Turning P306 to the left reduces the peak instrument current IPEAK . The (linear) range of adjustment is 0…100 %. Alternatively, the end value can be reduced by means of a fixed resistor. As delivered, P306 ist set to the right stop (maximum) and covered. The following table provides information for the rough setting of IPEAK and IRMS for commissioning. An exact setting – especially for low currents – is possible by using the method described in Chapter III.2.3.7.

When the current reaches the preset limit for effective current (IRMS, I²t limit, see Chapter III.2.3.7) the pulse current is limited until the effective load falls. The BTB signal is not affected by this behaviour. The response of the I²t limit is indicated by the yellow LED and signalled by a floating optocoupler output at the I²t signal output (terminal 18, referred to DGND, terminal 12). In normal operation the output is actively held down to 0 V (Low level). If required, a pull-up resistor with a minimum value of 2.2 k
can be externally wired to +15…30(24) V.