Chapter 2 - Start-Up Instructions
IV A 2 - 20 DCS 500B / DCP 500B Operating Instructions
2.7 Balancing the speed controller, plus fine-balancing the e.m.f. and the
current controllers
1701 = 11206
Change between POT1 and POT2 activated.
Extremely reduce the ramp-up time, depending on the system conditions:
1708 = 0,1 s
1709 = 0,1 s
Adjusting the potentiometers for speed controller balancing:
During acceleration/ braking, the drive should reach the current limitation, if
necessary increase the value of POT1.
Scaling of 1204 and 1205 ⇒ 20 000 corresponds to 100 % speed.
1204 (POT1) = 10%...20% max. speed
1205 (POT2) = 0
1206 (PERIOD) = Adapt as necessary.
Switch ON power; start drive.
DANGER: System components now energized!
Drive should run at speed values corresponding to POT1 and „0“.
For assessing control quality, the Fig. entitled "Transient response of
controller" ( ⇒ section 2.6.3) can be used.
For this purpose, the following parameters at the speed controller must be adapted:
2014 = desired response (behaviour) of controller
2018 = desired response (behaviour) of controller
Only when fine-balancing of the e.m.f. controller is wanted!
((Necessary when work as per section 2.6.3. has been performed)
Only when fine-balancing of the current controller is wanted!
For assessing control quality, the Fig. entitled "Transient response of
controller" ( ⇒ section 2.6.3) can be used.
- If fine-balancing of the current controller is wanted, the settings for
the software potentiometers can be retained.
The following parameters at the current controller must be adapted:
407 = desired response (behaviour) of controller
408 = desired response (behaviour) of controller
- If fine-balancing of the e.m.f. controller is wanted, potentiometers'
settings must be adapted:
1204 (POT1) approx. 10 % smaller than speed at field weakening point
1205 (POT2) ca. 10% greater than speed at field weakening point
The following parameters at the e.m.f. controller must be adapted:
1007 = desired response (behaviour) of controller
1008 = desired response (behaviour) of controller.
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