Lenze 490 Series Speed controllers tor DC motors - Manual (Page 17)

ct~eaJc~a4: 03.11.89 EK12/fa page:~ 14
output standstibb logic
nmax
When the speed is bess than n
=
50
the transistor output terminab ~j switches to =0.6V
When instabbing a diode (e.g. 1N4004) on the position
V 714 of the board 4091, the transistor output terminab
~ switches to 0.6 V if the speed is bess than
nmax
n = and the motor is without current.
50
The output is used for an automatic mains switch—off.
- Application proposab for fastest possibbe mains
switch-off (faster braking in inverter operation).
V174 must be sobdered. See chapter 11.
REL/TRP-1 5
part no. 321 351
K3
tBr brake time of the drive
S1 drive off
S2 drive on
K2 reiay with goid—piated contacts
5]
+Vcc
=
15V stabibized
maximum external bad of +Vcc is 50 mA
10. Optical display of the most iinpartant functions with LEDs
10.1 LED ±Vcc
±Vcc is bit, when the controbber is ready to operate.
±Vcc is not bit when there is no power suppby
(±Vccsurveillance).
Lanze
5]
IOOR
10K
BC 337
quick stop deloyed n1~n ccn~octcr
r~Oy timer cur~ent conTro!Ier