5.10 Voltage supply for external devices (+24V, GND)
A voltage supply is integrated for external devices e.g. a sensor (max. current load see technical
data).
In case of overload or short circuit (24 V – GND), the external power supply is shut down (multi-fuse).
The device performs a “Reset” and continues operation.
•
It is not permissible to connect voltage outputs of several devices to each other!
•
It is not permissible to connect voltage outputs in the device to each other!
5.11 Digital input “D1” for enable (device ON / OFF)
Electronic disconnection and Reset after motor fault via floating contact at terminals “D1”- “24V”, input
resistance and voltage range see Technical data.
Function factory setting for “D1”:
•
Device “ON” for closed contact.
•
Controller “OFF” with opened contact.
Activation via floating contacts, a low voltage of approx. 24 V DC is connected.
Danger due to electric current
•
No disconnection (no potential isolation in accordance with VBG4 §6) in remote control of the
device!
•
Never apply line voltage to the digital input!
5.12 Relay outputs “K1”
An external fault indicator is available over the potential-free contact of the built-in relays (max. contact
rating
Technical data and connection diagram).
Function factory setting for “K1”:
•
For operation the relay is energized, connections “13” and “14” are bridged. For fault the relay is de-
energized (
Diagnostics / faults).
•
When switching off via enable (D1 = Digital In 1), the relay remains energized.
5.13 Bypass circuit
For a bypass circuit, i.e. when bypassing the frequency inverter with line voltage, observe the
following:
•
Two contactors are required, a bypass contactor and a contactor at the inverter output. The two
contactors must be interlocked with each other.
•
When switching between bypass operation and inverter operation, a time delay of at least 1 second
must be observed.
•
When the contactor is switched off at the inverter output, a switch-off via the digital input must take
place at the same time, see function “Enable” in the IO Setup.
•
After switching off the line voltage, you must wait at least 90 seconds before switching on again.
•
Never apply line voltage to the inverter output!
Operating Instructions Fcontrol Basic – model series FSDM2.5..50M Electrical installation
L-BAL-E162-GB 2022/02 Index 008 Part.-No.
19/30
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