OPERATION INSTRUCTIONS DANFOSS ENG

ManualsBrandsSystemair ManualsElectrical accessories VentilationFC102-45,0kW/90A-IP55, 150/50m - frequency converter, 380-480V, 45kW, 90A, IP55

Safe Torque Off Terminal 37

3), 4)

(Terminal 37 is fixed PNP logic)

Voltage level 0–24 V DC

Voltage level, logic'0' PNP <4 V DC

Voltage level, logic'1' PNP >20 V DC

Maximum voltage on input 28 V DC

Typical input current at 24 V 50 mA rms

Typical input current at 20 V 60 mA rms

Input capacitance 400 nF

All digital inputs are galvanically isolated from the supply voltage (PELV) and other high-voltage terminals.

1) Terminals 27 and 29 can also be programmed as output.

2) Except Safe Torque Off input Terminal 37.

3) See chapter 4.8 Control Wiring for further information about terminal 37 and Safe Torque Off.

4) When using a contactor with a DC coil inside in combination with Safe Torque Off, it is important to make a return way for

the current from the coil when turning it off. This can be done by using a freewheel diode (or, alternatively, a 30 or 50 V MOV for

quicker response time) across the coil. Typical contactors can be bought with this diode.

Analog inputs

Number of analog inputs 2

Terminal number 53, 54

Modes Voltage or current

Mode select Switch S201 and switch S202

Voltage mode Switch S201/switch S202 = OFF (U)

Voltage level -10 to +10 V (scalable)

Input resistance, R

approx. 10 kΩ

Max. voltage ±20 V

Current mode Switch S201/switch S202 = ON (I)

Current level 0/4 to 20 mA (scalable)

Input resistance, R

approx. 200 Ω

Max. current 30 mA

Resolution for analog inputs 10 bit (+ sign)

Accuracy of analog inputs Max. error 0.5% of full scale

Bandwidth 20 Hz/100 Hz

The analog inputs are galvanically isolated from the supply voltage (PELV) and other high-voltage terminals.

Mains

Functional

isolation

PELV isolation

Motor

DC-Bus

High

voltage

Control

+24V

RS485

130BA117.10

Figure 8.1 PELV Isolation

Specifications Instruction Manual