Digital inputs
Programmable digital inputs 4
Terminal number 18, 19, 27, 29
Logic PNP or NPN
Voltage level 0–24 V DC
Voltage level, logic '0' PNP <5 V DC
Voltage level, logic '1' PNP >10 V DC
Voltage level, logic '0' NPN >19 V DC
Voltage level, logic '1' NPN <14 V DC
Maximum voltage on input 28 V DC
Input resistance, R
i
Approx. 4 kΩ
Digital input 29 as thermistor input Fault: >2.9 kΩ and no fault: <800 Ω
Digital input 29 as Pulse input Max frequency 32 kHz Push-Pull Driven & 5 kHz (O.C.)
Analog inputs
Number of analog inputs 2
Terminal number 53, 54
Terminal 53 mode Parameter 6-19: 1=voltage, 0=current
Terminal 54 mode Parameter 6-29: 1=voltage, 0=current
Voltage level 0–10 V
Input resistance, R
i
Approx. 10 kΩ
Max. voltage 20 V
Current level 0/4 to 20 mA (scalable)
Input resistance, R
i
<500 Ω
Max. current 29 mA
Analog output
Number of programmable analog outputs 2
Terminal number 42, 45
1)
Current range at analog output 0/4–20 mA
Max. load to common at analog output 500 Ω
Max. voltage at analog output 17 V
Accuracy on analog output Max. error: 0.4% of full scale
Resolution on analog output 10 bit
1)
Terminal 42 and 45 can also be programmed as digital outputs.
Digital output
Number of digital outputs 2
Terminal number 42, 45
1)
Voltage level at digital output 17 V
Max. output current at digital output 20 mA
Max. load at digital output 1 kΩ
1) Terminals 42 and 45 can also be programmed as analog output.
Control card, RS-485 serial communication
A)
Terminal number 68 (P, TX+, RX+), 69 (N, TX-, RX-)
Terminal number 61 Common for terminals 68 and 69
General Specifications and ... Design Guide
MG18C522 Danfoss A/S © Rev. 2014-01-14 All rights reserved. 115
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