HF131PEN_v0501_05
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- RELAY OUTPUT
Two one open-collector outputs (Optional: mechanic relays or active outputs) are available to control
relays or small valves (max. 50VDC – 300mA).
Relay 2 can also be used as pulse output according the batch total (actual) or accumulated total.
Please note: if the communication option has been supplied, the pulse output functions 83, 84 and
85 are not available.
1-STEP / 2-STEP
81
With this setting, the function of relay is
Select "2-step" to executed batches with a two-stage valve.
Select “1-step” to be able to use relay 2 as pulse output relay.
PRECLOSE QUANTITY
82
According to the setting 81 - 2-step, relay two will be used to control a
valve for the batch process.
If the product is batched in two steps, the switch-off-moment for relay 2
has to be set. The switch moment is based on the remaining quantity
before the end of batch.
If the preclose quantity is set to zero, it will switch simultaneously with
relay 1.
PERIOD TIME
PULSE OUTPUT
83
According to the setting 81 - 1-step, relay 2 can be used as a scaled pulse
output.
The period time determines the time that the transistor or relay will be
switched; in other words the pulse length. The minimum time between the
pulses is as long as the period time.
One period is approx. 7.8 msec. If the value selected is “zero”, the pulse
output is disabled. The maximum value is 255 periods.
Note:
If the frequency should go out of range - when the flowrate
increases for example - an internal buffer will be used to "store the missed
pulses": As soon as the flowrate reduces again, the buffer will be
"emptied".
It might be that pulses will be missed due to a buffer-overflow, so it is
advised to program this setting within it's range
N
UMBER OF PERIODS
P
ERIOD TIME
MAX
.
FREQUENCY
0 disabled
disabled
1 0,0078
seconds
64
Hz.
2 0,0156
seconds
32
Hz.
3 0,0234
seconds
21
Hz.
64 0,5000
seconds
1
Hz.
255 1,9922
seconds
0.25
Hz.
PULSE PER
84
According to the measurement unit settings for preset, a scaled pulse will
be generated every X-quantity. Enter this quantity here while taking the
displayed decimal position and measuring unit into account.
PULSE ACCORDING
ACC. TOTAL / BATCH
85
With this function, it is determined if a pulse will be generated according
the quantity batched or according accumulated total.
With setting "batch" the pulse generator will be set to zero when a new
batch is started up.
