1.1.2 Connection of
the Control
1.1.3 Digital Inputs
1.1.4 Analog Inputs
Installation and Connection
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
EMC
apart)
• Lay crossings in a right angle (in case it cannot be prevented)
X2A
10 11 12 13 14 15
X2A
10 11 12 13 14 15
13...30V DC ±0%
smoothed
Ri = 2,1 kΩ
Connect unused analog inputs to common, to prevent set value
fluctuations!
External analog
set-point setting (see CP.35)
X2A
1 2 3 4 5 6 7 8 9
0...±10 VDC
Ri = 55 kW
+
0(4)...20 mADC
Ri = 250 W
+
*) Connect potential equalizing line only if a potential difference of > 30 V
exists between the controls. The internal resistance is reduced to 30 kΩ.
Use of internal voltage supply
16 17
Use of external voltage supply
16 17
13...30VDC
PE
X2A
1 2 3 4 5 6 7 8 9
*
*
PE
20 21 22 23
23
PE
+
20...30 VDC
Internal analog
set-point setting
PE
R = 3...10 kW
GB - 5
GB