APAR AR911, User Instruction

Page: 9 / 12

9
17:
PASS
password
0000
÷
9999
password for the configuration menu (when 18:
Prot
=
on
) 1111
18:
Prot
protection of
the configuration with a
password
oFF entry into the configuration menu is not password-protected
oFF
off
on entry into the configuration menu is password-protected
19:
toFF
auto-off time
oFF
1
÷
240
min
time calculated from the time of last use of any keyboard key,
oFF
the function is off
oFF
9. SOFT START/STOP AND TRIANGULAR WAVE GENERATOR
The device has a ramp function (soft start and stop) that works as shown in the diagrams below (figures 9.1, 9.2,
and 9.3). In order to start the function, configure the duration of the soft start (the increasing slope, parameter 12:
riSE
, chapter 8) or the soft stop (the decreasing slope, parameter 13:
FALL
). If both times are different than zero
(12:
riSE
and 13:
FALL
) a periodic triangular signal is generated on the outputs. The limit values (amplitudes) of
the output signal are equal to the limit values of the signal used (which depend on parameter 1:
StYP
) or may be
restricted with the lower limit 8:
LiLo
and the upper limit 9:
LiHi
. The indications of the display are expressed in
real units (mA or V when 2:
dira
=
unit
) or by parameters 3:
rbot
, 4:
rtoP
(when 2:
dira
=
boto
).
The function is started with the manual button [SET] after holding time longer than 1.5 seconds. The ramp can be
stopped and restarted at any time using the [SET] button (a momentary message appears
StAr
- start or
StoP
-
stop) .
The status of the outputs in the operation mode is updated automatically approx. 6 times a second.
Figure 9.1. The principle of operation of outputs in the soft start mode (parameter
riSE
> 0,
FALL
=
oFF
).
Figure 9.2. The principle of operation of outputs in the soft stop mode (parameter
riSE
=
oFF
,
FALL
> 0).