Connection Of The Control Circuit; Digital Inputs; Analog Inputs - KEB COMBIVERT F5 Series Instruction Manual

Installation and Connection

2.2.2 Connection of the control circuit

In order to prevent a malfunction caused by interference voltage supply on the control inputs, the following
directions should be observed:
•
Use shielded / drilled cables
• Lay shield on one side of the inverter onto earth potential
• Lay control and power cable separately (about 10...20 cm apart); Lay crossings in a right angle (in
case it cannot be prevented)

2.2.3 Digital Inputs

13...30 V DC ±0 %
stabilized
Ri = 2,1 kΩ

2.2.4 Analog Inputs

Connect unused analog inputs to common, to prevent set value fluctuations !
External analog setpoint setting
Ri = 55 kW
X2A
0...±10 VDC
*) Connect potential equalizing line only if a potential difference of >30 V exists between the controls.
The internal resistance is reduced to 30 kΩ.
GB - 8
Using of the internal voltage supply
X2A
10 11 12 13 14 15
Using of an external voltage supply
X2A
10 11 12 13 14 15
(see CP.35)
1 2 3 4 5 6 7 8 9
*)
+
*)
16 17 20 21 22 23
16 17
X2A
PE
PE
23 PE
+
20...30 V DC
Internal analog set-point setting
1 2 3 4 5 6 7 8 9
R = 3...10 kW
PE