Connection Of The Control Signals; Digital Input; Analog Inputs - KEB COMBIVERT F5 Reference Manual

Control Connections
3.1.2 Connection of
the control signals

3.1.3 Digital Input

3.1.4 Analog Inputs

42
To prevent a malfunction caused by interference voltages on the control
inputs, the following steps should be observed:
• Establish a true earth ground for all ground connections!
• Do not connect drive signal commons to earth ground!

• Use a shielded cable with twisted pair wires!
• Terminate shield wires to earth ground, only at inverter!
EMC
• Separate control and power wires by 8" or more!
• Control and power wires should cross at a right angle!
X2A
10 11 12 13 14 15
X2A
10 11 12 13 14 15
Speed Pattern, Torque Command
X2A 1 2 3 4 5 6 7 8 9
0...±10 VDC
Ri = 55 kW
+
0(4)...20 mADC
Ri = 250 W
+
Connect unused analog inputs to common to eliminate noise signals
Use of internal voltage supply
16 17
Use of external voltage supply
16 17
Ri = 2.1 kΩ
GND X2A
*
*
20 21 22 23 GND
23
GND
+
20...30 VDC
Regulated
1 2 3 4 5 6 7 8 9
R = 3...10 kW
!
GND