D4-CNT1

1 RELAY
This device may be configured for counting or frequency monitoring functions.
Using the "save" function, the state of the counter is saved to non-volatile memory during power failures, allowing the device to continue from where it left off before the power was removed.
A 10V - 24V DC supply (± 30mA) is included for use with NPN proximity switches.
The relay may be configured to either energize or de-energize when the pre-set number of pulses have been counted.
Pulses can be acknowledged when the pulse pins are either shorted OR released.
A prescaler of up to 200 is included. (the device reads the "pre scale" amount of pulses before updating the counter value).
The post-scaler multiplies the pulses received by up to 200.
Pulses may be displayed as lapsed (up-counting), remaining (down counting) or frequency (even if configured for counting).
Using the reset timer the device can automatically be reset between 0.1 and 99.9 seconds after the pre-set number of pulses have been counted, eliminating the need to generate reset pulses manually.
By using this timer function, the output pulse length can be varied from 0.1 to 99.9 sec.
When monitoring frequency the hysteresis may be set from 1 to 50% of the set-point. A latch facility and 10 second start-up timer is also incorporated.

ADDITIONAL FEATURES INCLUDE:

• relay operates (or gives a pulse) upon reaching the pre-set number of pulses
• reversed relay action to open contacts when count is reached
• interfaces with NPN proxy, photo switches (10-30V 30mA power supply included)
• select leading or trailing edge of pulse (when pulse open or closes)
• reset via external pulse or BUILT-IN timer (0.1 - 99.9sec after count is reached)
• pre-scaler divedes pulses automatically (one item = multiple pulses)
• post scaler multiplies pulses automatically (multiple items = 1 pulse)
• display lapsed or remaining pulses
• selectable save status (after power failure, device can either continue from where it left or reset)
• configurable to monitor frequency of pulses
• keypad lock

ADJUSTABLE PARAMETERS:

FUNCTION:                                                        counter/frequency
SET POINT:                                                       1-49999 pulses
RELAY OUTPUT:                                                continous/pulse
REVERSE RELAY (relay status after counting): open/close
PRE-SCALE (pulses/count):                             1-200 pulses
POST-SCALE (count/pulses):                            1-200
INPUT PULSE SPEED:                                        mechanical/fast
PULSE EDGE (leading/trailing):                        close/open
KEYPAD AND MENU LOCK

Specifications:

Input range:                           0-9999 pulses,0-9999 RPM,0-5000Hz, 0-9999 pulses per hour
Maximum display value:         9999
Pre-scale:                               1-1000 pulses
Post-scale:                             1-1000
Decimal pointer:                     9999, 9.999, 99.99, 999,9
Accuracy:                                Counter mode : 100%
Freq, RPM,PPh : ±0.05%
Display Resolution:                Counter: 0.001 to 9999
Freq, RPM, PPh: 1
Input voltage:                         ±15% of rated voltage
Led indication:                        Relay status
Reset time:                             0.5 sec (power supply reset) 0.05 sec (reset pulse)
Response time:                       Counter: <0.02s
Freq, RPM, PPh: <1.1s
Input frequency                      “FASt”: 0-8000 Hz “SLO”: 0-5 Hz

Pulse source type mechanical switch or NPN proximity

All parameters are saved to non-volatile eeprom memory, thus eliminating the need to re-program after a power failure

incorporates a crystal oscillator to maintain accurate timing

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