Endress+Hauser Proline Prowirl 72, Руководство по эксплуатации

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Proline Prowirl 72 11 Description of device functions
E Hauser 87
PULSE WIDTH
(contd.)
A0001233
B = Pulse width entered (the illustration applies to positive pulses)
P = Intervals between the individual pulses
!
Note!
When entering the pulse width, select a value that can still be processed by a connected
totalizer (e.g. mechanical totalizer, PLC, etc.).
"
Caution!
If the pulse number or frequency resulting from the pulse value entered (see PULSE
VALUE function on Page 86) and from the current flow is too large to maintain the pulse
width selected (interval P is smaller than the pulse width B entered), a system error
message (#359, PULSE RANGE) is generated after buffering/balancing has occurred.
OUTPUT SIGNAL
!
Note!
This function is not available unless the PULSE option was selected in the OPERATING
MODE function.
Use this function to configure the pulse output in such a way that it suits an external
totalizer, for example. Depending on the application, you can select the direction of the
pulses here.
Options:
PASSIVE - POSITIVE
PASSIVE - NEGATIVE
Factory setting:
See parameter printout supplied (the parameter printout is an integral part of these
Operating Instructions)
PASSIVE:
A0001225
m
Open collector
n
External power supply
!
Note!
For continuous currents up to 15 mA
PASSIVE-NEGATIVE
Pulse (B: pulse width)
A0001975
PASSIVE-POSITIVE
Pulse (B: pulse width
A0001981
Function description PULSE/STATUS OUTPUT (pulse)
B= P
B
P P
B
B< P
1 5 8 3 7
+
-
=
U = 30 V DC
max
m
n
U (V)
t
U (V)
t