256
System Manual – MOVIDRIVE® compact Drive Inverters
4
Electronics cables and signal generation
Project Planning
4.18
Electronics cables and signal generation
•
The electronics terminals are suitable for the following cross sections:
MCF/MCV/MCS:
For single cores 0.20...2.5 mm
2
(AWG 24...12)
For double cores 0.20...1 mm
2
(AWG 24...17)
MCH:
Only single cores 0.20...1.5 mm
2
(AWG 24...12)
Use right-angled crimping pliers with 1.5 mm
2
(AWG 16)
Route electronics cables separately from power cables and contactor control cables
or braking resistor cables. If you use shielded electronics cables, ground the shield
at both ends.
•
Use setpoint potentiometer with R > 5 k
Ω
.
•
If necessary, potentiometer setpoints are switched using the 10 V voltage rather than
via the wiper lead.
•
Never connect 0 V cables (AGND, DGND, DCOM) for generating signals. The 0 V
cables of several electrical units which are connected should not be looped from unit
to unit, but rather wired up in a star configuration. This means:
– Install the units in adjacent switch cabinet compartments rather than distributing
them.
– Lay the 0 V cables with 1.5 mm
2
(AWG16) cross section from a central point to
each individual unit by the shortest possible route.
•
If coupling relays are used, they should always have encapsulated, dust-protected
electronic contacts suitable for switching small voltages and currents (5 ... 20 V,
0.1 ... 20 mA).
•
MOVIDRIVE
®
compact
MCF41A does not have an analog input.
•
Binary inputs/outputs.
The binary inputs are electrically isolated by optocouplers. Binary input commands
can also be issued directly as a 0/1 command from the PLC instead of using a
coupling relay (signal level
→
electronics data).
The binary outputs are short-circuit proof and protected against external voltage up
to DC 30 V. Connecting an external voltage > DC 30 V at the binary outputs can
cause irreparable damage.
•
The inverter starts a self-test (ca. 3 s) when the power supply or DC 24 V supply is
connected. All signal outputs have the level '0' during the self-test.
•
DC 24 V voltage supply VI24:
In accordance with EN 61131-2, V
N
= DC+24 V –15 %/+20 %. A total AC voltage
component with a peak value of 5 % of the rated voltage (DC+24 V) is permitted in
addition to the specified voltage tolerances.
05304AXX
Figure 89: Switch potentiometer setpoint
-10V
+10V
+10V
-10V
+
-
+
-
+
-
+
-
n1
n1
X10:
MCF/MCV/MCS
MCH
X10:
REF1
AI11
REF2
AI12
SC11
AI21
SC12
AGND
REF1
AI11
AI12
AI21
AGND
REF2
1
2
3
4
5
6
7
8
1
2
3
4
5
6
R11
R11
Summary of Contents for MOVIDRIVE compact MCH41A
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