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B4 STATE REC. During the energy recovery phase the output is acti-
vated (that's to say that the output is taken to a low
level). It is used for the control of the state of the bat-
tery charge level of the instrument "ZILB 93".
B7 SPEED SIGNAL* Input for the speed signal caming from a trasducer
speed / voltage. The range admitted by the signal is
from 0V to 5V.
B8 SPEED REF* Input for the reference speed signal.
On this pin it is fixed the voltage corresponding to the
relative speed which must not be exceeded on the pin
B7, range admitted from 0V to 5V.
* This function is active when the option "speed" is programmed in the "check" way.
5.1.2 Programmable functions (OPTIONS)
- The options can be programmed from the console using the “sel options” menu
function/pin option description
1) PIN G3 bypass The contactor connected to connector G3 is handled as
a bypass, with activation current = 80%Imax., output
current = 90%Imax., activation delay=800 msec.
weak The contactor connected to connector G3 is handled as
weakening, with activation current = 50% of the pro-
grammable output current (WEAK DROP OUT) from
10% to 100% Imax. Activation delay=800 msec.
2) SPEED free Speed check not active. The mini-console can be used
with this option.
check Speed check active. At input “B8”, a reference potential
between 1 and 5 V is applied, at “B7” an analogue
signal proportional to the speed is applied. When the
signal on connector B7 exceeds that of reference on
B8, the machine begins to reduce the motor voltage or
brakes if the difference persists. This braking state
remains until the signal on B7 becomes less than that
of B8. Sampling is made once every 60 msec.
Note: when the speed check option is active, the mini-
console cannot be used.
3) BATTERY free No low battery charge alarm.
check Activates the check that reads the battery voltage in
standby. When the residual charge is less than 10%,
the maximum current is halved and the LED blinks
continuously.
H2B regenerative traction
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