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1.13.14 Sensor configuration menu
Automatic
Sensor
configuration
Channel A pulls
Channel B pulls
Reset pulls
Trigger level
Channel A
activation
Reset activa-
tion
Excitation
voltage
The 'Sensor' ('SnSr') configuration menu contains all param-
Mechanical contact
eters related to the detection of the input signal, excitation
voltage and trigger levels.
Namur
• enter the 'Automatic configuration' ('Auto') menu to se-
NPN 2 wires
lect a standard sensor from the list. The instrument will con-
NPN 3 wires
figure the appropriate parameters for the sensor selected,
as indicated at Table 15. If the instrument does not detect
PNP 2 wires
the signal with this configuration, the following parameters
PNP 3 wires
can be manually reconfigured.
• at 'Channel A pulls' ('PuL.A') select 'P.uP' to activate the
Push pull
internal pull-up resistors needed for NPN sensors, select
TTL
'P.dn' to activate the internal pull-down resistors needed
for PNP sensors, or select 'no' to disable the pull resistors.
CMOS
Selecting pull-up or pull-down resistors sets the trigger lev-
Pick-up
el to 2,5 Vdc.
• at 'Channel B pulls' ('PuL.b') applies the same as previous
Inductive
entry but for channel B.
Vac <30 V
• 'Reset pulls' ('PuL.r') - applies the same as previous entry
but for the reset channel.
• at 'Trigger level' ('trIG') configure the trigger level to de-
No pulls
tect the impulses. Signals levels above the trigger level are
Pull up
'1' signals, and signal levels below trigger level are '0' sig-
nals. Trigger level is selectable between 0,0 and 3,9 Vdc.
Pull down
Channels 'A' and 'B' share the same trigger level. Trigger
level for reset channel is fixed at 2.5 Vdc. Vertical leds to the
No pulls
left are part of the 'trigger sense' utility to help locate the
real trigger level for the actual signal. See section 1.13.13
Pull up
for more information.
Pull down
• at 'Channel A activation' ('Act.A') configure the activation
of channel 'A' by rising edge ('on_h') or falling edge ('on_0')
• at 'Reset activation' ('Act.r') configure the activation of
No pulls
reset by rising edge ('on_h') or falling edge ('on_0')
Pull up
• at 'Excitation voltage' ('V.EXc') configure the value for the
excitation voltage to 5 Vdc, 9 Vdc, 15 Vdc or 18 Vdc. Select
Pull down
'no' to disable the excitation voltage.
• at 'Antirrebound' ('rbnd') configure the filter that prevents
0.0 Vdc to 3.9 Vdc
mechanical rebounds to be accepted as real impulses. Con-
figure a value between 0 and 1000 mSeconds. When an im-
pulse is received,the instrument inhibits the counting of new
impulses for the time configured. When time is over, the next
impulse is accepted and the filter activates again. Recom-
rising edge
mended value is 100 mSeconds for a mechanical contact.
falling edge
rising edge
falling edge
Antirrebound
FEMA ELECTRÓNICA . SERIES B . Models Bxx-C1
0 to 1000 mSec.
17
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