Operating Instructions ACU
7.6.1 External DC 24 V power supply
The bidirectional control terminals X210A.1/ X210A.2 can be used as a voltage output or voltage
input. By connecting an external power supply of DC 24 V ±10% to terminals X210A.1/X210A.2, the
function of inputs and outputs as well as the communication can be maintained.
Requirements to be met by external power supply
Max. 1.0 A (typically 0.45 A)
Via standard fuse elements for rated current, characteristic: slow
Safety extra low voltage (SELV) according to EN 61800-5-1
The digital inputs and the DC 24 V terminal of the electronic control equipment can
withstand external voltage up to DC 30 V. Avoid higher voltage levels. Higher voltages
may destroy the unit.
Use suitable external power supply units with a maximum output current of DC 30 V or
use appropriate fuses to protect the unit.
The application manual "Safe Torque Off STO" must be complied with, particularly if the
safety function described there is used.
7.6.2 Relay output
By default, the freely programmable relay output is linked to the monitoring function (factory
setting). The logic link to various functions can be freely configured via the software parameters.
Connection of the relay output is not absolutely necessary for the function of the frequency inverter.
1
2
3
0.2 … 1.5 mm
AWG 24 … 16
2
Phoenix ZEC 1,5/3ST5,0
0.2 … 1.5 mm
AWG 24 … 16
2
0.25 … 1.5 mm
AWG 22 … 16
2
0.25 … 1.5 mm
AWG 22 … 16
2
S3OUT
X10
X10
Relay output, floating change-over contact, response time approx. 40 ms,
maximum contact load:
make contact: AC 5 A / 240 V, DC 5 A (ohmic) / 24 V
break contact: AC 3 A / 240 V, DC 1 A (ohmic) / 24 V
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