09/01 AWB8230-1412GB
Electrical connection
39
Control signal terminal wiring
Wire the control signal terminals to suit their application. For a
description of how to change the functions of the control signal
terminals, see Section ”Programming the control signal terminals”
from Page 49 .
Use twisted or screened cables for connecting to the control signal
terminals. Earth the screen on one side with a large contact area
near the frequency inverter. The cable length should not exceed
20 m. For longer cables, use a suitable signal amplifier.
The following figure shows a sample protective circuit for the
control signal terminals
CM2 External control voltage
input
Up to 27 V – Connection: Reference potential (0 V) of the
external voltage source for the transistor outputs,
terminals 11 and 12.
Load carrying capacity: Up to 100 mA
(sum of terminals 11 + 12)
12 Transistor output
Up to 27 V = CM2 RUN (operation) Configurable, open collector
Load carrying capacity: Up to 50 mA
11 Transistor output
Frequency setpoint reached
No. Function
Level Default setting Technical data, description
Caution!
Never connect terminal P24 with terminals L, H, OI or FM.
Caution!
Never connect terminal H with terminal L.
Figure 33: Control terminal connection (factory setting)
2 1
P24
H O
L
ZB4-102-KS1
15
M4
PE
2
Cu 2.5 mm
PES
PES
1
2
3
M
R1 REV FWD
4K7
M
F 20 m
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