Pd6310 pulse input – Precision Digital PD6310 User Manual
Page 12

Model PD6210 & PD6310 Batch Controllers
Instruction Manual
12
F4 DIGITAL INPUT 
LOGIC LEVELS 
Logic High: 3 to 5 VDC 
Logic Low: 0 to 1.25 VDC 
PD6310 Pulse Input
INPUTS
Field selectable: Pulse or square wave 0-5 V, 0-12 V, or 
0-24 V @ 30 kHz; TTL; open collector 4.7 k
Ω pull-up to 5 V
@ 30 kHz; NPN or PNP transistor, switch contact 4.7 k
Ω
pull-up to 5 V @ 40 Hz; Modbus PV (Slave)
LOW VOLTAGE 
MAG PICKUP 
(Isolated) 
Sensitivity: 40 mVp-p to 8Vp-p
MINIMUM INPUT 
FREQUENCY 
0.001 Hz 
Minimum frequency is dependent on high gate setting. 
MAXIMUM INPUT 
FREQUENCY 
30,000 Hz (10,000 for low voltage mag pickup)
INPUT 
IMPEDANCE 
Pulse input: Greater than 300 k
Ω @ 1 kHz.
Open collector/switch input: 4.7 k
Ω pull-up to 5 V.
ACCURACY
±0.03% of calibrated span ±1 count
TEMPERATURE 
DRIFT 
Rate display is not affected by changes in temperature.
MULTI-POINT 
LINEARIZATION 
2 to 32 points
LOW-FLOW 
CUTOFF 
0-999999 (0 disables cutoff function)
DECIMAL POINT
Up to five decimal places or none:
d.ddddd
, d.dddd, d.ddd, d.dd, d.d,
or
dddddd
CALIBRATION
May be calibrated using K-factor, internal calibration, or by 
applying an external calibration signal. 
K-FACTOR
Field programmable K-factor converts input pulses to rate in 
engineering units. May be programmed from 0.00001 to 
999,999 pulses/unit. 
CALIBRATION 
RANGE 
Input 1 signal may be set anywhere in the range of the 
controller; input 2 signal may be set anywhere above or 
below input 1 setting. 
Minimum input span between any two inputs is 10 Hz. 
An error message will appear if the input 1 and input 2 
signals are too close together.
FILTER
Programmable contact de-bounce filter: 40 to 999 Hz 
maximum input frequency allowed with low speed filter. 
TIME BASE
Second, minute, hour, or day
