Vmax is the maximum effective motor speed.
Evaluation of Pr16 and Pr17 (speed control loop gain)
The default values of Pr16 and Pr17 have been chosen considering identical motor and
drive rated currents; if this is not the case correct the values of parameters Pr16 and Pr17
with the ratio of the motor rated current/drive rated current. This compensation will
eliminate the risk of motor vibration at the first start-up.
6) Set the analog reference signal to 0 V (pins 15, 8 of connector X7), and enable the drive
(24 V on pin 1 of connector X7).
7) The motor shaft must be stationary; when the analog reference voltage is changed, motor
speed should change proportionally. If this does not occur, check your wiring.
8) Save your settings with b99.15.
The drive is factory set with default values designed to meet the requirements of the
majority of applications. In default conditions the built-in pico-PLC runs the program
described in Appendix F so t he following functions will be present on the input and output
connectors:
The functions on pins 9, 2 and 10 of connector X7 must be enabled by setting bit b90.10 to
one. This requires access to the extended parameters menu.
The default PLC program controls parameter Pr5 in addition to timer 1 (Pr92) and bits
b40.0, b40.4, b40.5, b40.6, b40.12 so in this case the above bit parameters and switches
cannot be utilised unless the pico-PLC is disabled (b99.13=0) or the basic program is
modified.
X6 X7
1 real speed > Pr13 1 enable drive
9 motor speed = reference (+/- 20 rpm) 9 left-hand stroke end (n. c.)
2 real speed = 0 2 right-hand stroke end (n. c.)
10
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