Standards Specifications (5)

Name                                                                                      Frequency input

Model                                                                                                EP3

2-wire type: On/Off contact, voltage pulse, current pulse

Input signal                       (Internal distributor may be used to supply power to transmitter)

3-wire type: Voltage pulse, internal distributor may be used to supply power to transmitter

Input frequency                 0 to 10 kHz (Low level input cut off point 0.01 Hz)

100.                                                         frequency          0.1 Hz to 10 kHz

Zero elevation                   Between 0 to 50 % of input frequency

Measuring range and low          Can be changed by BRAIN terminal (*1)

level input cut off point

Main. Input pulse width    On time: 60 _s                 Off time : 60 _s (for input frequency 0 to 6 kHz)

On time: 30 _s                  Off time : 30 _s (for input frequency 6 to 10 kHz)

Contact input:                  Relay contact, transistor contact

Detection level   Open: more than100 kΩ

Closed: less than 200 Ω

Contact capacity:   at least 15 V DC, 15 mA or more

Input signal level              Voltage/current Pulse input:

EL (low level):   -1 to +8 V DC

Eh (high level):   +3 to +24 V DC

Voltage swing:   (Eh-El):  ≥ 3 V       pp (for input frequency 0 to 6 kHz )

Signal source resistance:                                                ≥ 5 V   pp (for input frequency 6 to 10 kHz )

1  k? or less

Internal load resistance   Selected for 200 Ω, 500 Ω or 1 kΩ, Jumper pin on the card (for current pulse input)

Input filter                           10 ms, ON/OFF for setting Jumper pin

Internal distributor            12 V DC 30 mA or 24 V DC 30 mA. Set for Jumper pin

Output signal                     1 to 5 V DC, 2 outputs (output resistance: 1 Ω max., load resistance: 2 kΩ min.)

Accuracy rating (*2)          Within _0.1 % of span

Signal isolation                 Isolated between input and output signals, and input signal and power supply input

Mounting method             Mounted in special nests (signal and power supply are connected via backboard and connector)

Wiring                                External wiring: Connected to M4 screw terminals for input/output inspecial nest, I/O card:

Special cable (connector connection)

External dimensions        73 (Width)x24 (Height)x115 (Depth) mm (including knob)

Weight                               75 g

Isolation resistance          Between input and output signals, input signal and power input: at 500 V DC,100 MΩ

Between output signal and power input: at 500 V DC, 100 MΩ

Withstanding voltage       Between input and output signals, input signal and power input: 1500 V AC for 1 minute

Between output signal and power input: 500 V AC for 1 minute

Power voltage                   24 V DC _10 %

Maximum current               110 mA

consumption (24 VDC)

Ambient conditions          0 to 50 _C /5 to 95 % RH (non-condensing)

Effect of ambient                Max. _0.2 % of span for 10 _C change

temperature change

Effect of power supply      Max. _0.1 % of span for change of 24 V DC _10 %

voltage change

*1:  Valid number of digit is 4 for the range and low cut off point.

*2:  Accuracy rating for the second output is _0.2 %.

EP3横河 EP3*A频率输入卡 EP3*A横河频率输入卡