Burkert Type 8620 - Manual (Page 18)

mxCONTROL Type 8620
Page 18
Internal Equipment – Inputs
Inputs Hardware version 1:
4 Analog inputs (4 … 20 mA or Pt100; software-
configurable) +
4 digital (On/Off or Freq) inputs
Hardware version 2:
4 Analog inputs 4 … 20 mA +
2 Pt100 +
4 Digital (On/Off or Freq) inputs +
4 digital (On/Off) inputs
Analog inputs – Characteristics
Input resistance of 4…20 mA inputs max. 300 Ω
Measuring error of 4…20 mA inputs < 0.2 % FS
Range of Pt100 inputs -20 … +150 °C
Measuring error Pt100 inputs max. ±0.25 K
3 wire connection; software compensated wire resistance
required
Digital Inputs - Characteristics
Logical values binary inputs 1 or HIGH: 13 ... 35 V; 0 or LOW: 0 … 4.5 V
Input resistance of binary inputs ≥ 20 k Ω
Max. frequency 2 kHz
Duty factor frequency 1 : 1
Measuring error frequency max. 0.2 % FS
Input accepts signals from open collector; open emitter; push-pull output; hall effect; reed
switch; micro switch
Internal Equipment - Outputs
Outputs Hardware version 1:
5 Relay outputs +
4 Analog outputs 4 … 20 mA (optional) +
4 Transistor outputs (optional)
Hardware version 2:
5 Relay outputs +
2 Analog outputs 4 … 20 mA +
2 Transistor outputs
4…20 mA Analog outputs - Characteristics max. 500 Ohmic load, output resolution 10 bit (effective >9 bit)
Relay outputs - Characteristics max. 250 V AC/DC, max. 10 A, potential-free, two-way
contacts,
max. 2500 VA (AC), max. 40 W Ohmic load (DC),
3 million switching cycles at 1 A, 10 million switching cycles at
0 A
Transistor outputs - Characteristics 24 V DC, switching capacity each max. 16 W, pnp, max. 2200
Hz
Further internal Equipment
Micro-controller core 32 bit with integrated flash memory
Slot for SD card (memory card) Can be used for data logging, up- and download of
configuration and parameter files
Clock real-time clock with calendar
Battery back-up for real-time clock Lithium battery CR2032, exchangeable, approx. 10 years
service life
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