red lion CUB 1, Manual

Page: 7 / 154

APPLICATION FLEXIBILITY VIA RECONNECT OPTIONS
Pulling the “L.S. CNT.” Input to Common with a mechanical or solid-state
switch increments the counter. The low pass filter (1meg resistor and 4700 pf
cap) used with a Schmidt trigger circuit debounces mechanical switch signals.
The switch load is 14 µA (max. voltage drop 0.5 V) when ON. OFF-state
leakage current must be less than 2 µA.
Reed switches, mercury wetted contacts, snap action limit switches, and
silver alloy relay contacts with wiping action are usually satisfactory for
generating count input signals. Motor starter contacts, tungsten contacts, and
brush-type contacts should
NOT be used.
Note: By parallel connecting both “H.S. CNT.” and “L.S. CNT.” inputs,
count speed can be increased to 250 Hz if de-bounce is not needed .
LOW SPEED COUNT INPUT, 50 Hz MAX. [For 250 Hz see note in text]
Moving the white wire to the “H.S. CNT.” Input allows the CUB Counter
to operate at speeds up to 5 KHz when driven by bi-polar outputs or external
circuits having an output impedance of 3.3 K
Ω
or less. Input drive voltage
must be limited to 6.0 V maximum to avoid damage to the counter. Outputs
higher than 6.0 V can be used with an external voltage divider, as shown.
INPUT PULSE EXCURSION LIMITS
V
IN
(High) = +2.7 V min.; +6.0 V max.
V
IL
(Low) = +0.5 V max.
Note: The PSMA Power Supply and Interface Module used for powering RLC
sensors with CUB Counters, has proper interface output for direct drive to
“H.S. CNT.”
HIGH SPEED COUNT INPUT, 5 KHz MAX.
Connecting the “RST. EN.” (Reset Enable) Input to Common activates the
front panel Reset button. When the front panel Reset button is to be
deactivated, remove the yellow wire from the “RST. EN.” Input.
When Remote Reset is required, the blue wire in the hardware pack is
inserted in the “REM. RST.” Input. Pulling this input low causes the counter
to reset. The “REM. RST.” can be pulled low by either a mechanical switch
or solid-state transistor switch. Switch load and leakage are the same as for
“L.S. CNT.” Input above.
Note: The RC protection circuit on the “REM. RST.” Input causes a delay of
approximately 6 msec in Reset response.
RESET OPTIONS
R VALUES
+V
R
+12 V 10 K
+18 V 16 K
+24 V 24 K
Selection of desired operating modes is easily done by moving terminal
leads in the Input Connector Body. The Connector body is polarized to prevent
incorrect insertion, and locked in place by the connector latch to avoid
accidental disengagement. Connectors are supplied with the 3 leads installed as
shown at right. A spare blue lead is supplied in the hardware pack.
Removing Terminal: Insert blade of a small screwdriver into slot of connector
body, and gently push in to disengage the locking pawl. Pull terminal out.
Inserting Terminal: When inserting into connector body, make sure the
locking pawl is toward the slot in the body. Push terminal in until the locking
pawl snaps into slot.