Bypass Circuit; Potential At Control Voltage Connections; Start-Up; Prerequisites For Commissioning - Helios FU Basic Instructions D'installation Et D'utilisation

Installation and Operating Specification FU Basic
5.12

Bypass circuit

Please observe the following during bypass switching (controller shunt with mains voltage):
• Mutual locking of mains contactor and bypass protection.
Time delay of at least 1 second during switching.
•
When the contactor is switched off at the inverter output, the "enable" (ON / OFF) must also be
•
opened and closed again when it is switched back on. When switching off, wait at least 90 seconds
before switching back on!
Never apply line voltage to the inverter output!
•
5.13

Potential at control voltage connections

The control voltage connections (< 50 V) relate to the joint GND potential (Exception: Relay contacts
are potential free). There is a potential separation between the control voltage connections and the
protective earth. It must be ensured that the maximum external voltage at the control voltage
connections cannot exceed 50 V (between "GND" terminals and "PE" protective earth). If necessary, a
connection to the protective earth potential can be established, install bridge between "GND" terminal
and the "PE" connection (terminal for screening).
6

Start-up

6.1

Prerequisites for commissioning

Attention!
1. You must mount and connect the device in accordance with the operating instructions.
2. Double check that all connections are correct.
3. The mains voltage must match the information on the rating plate.
4. The rated current on the rating plate will not be exceeded.
5. Make sure that no persons or objects are in the hazardous area.
L-BAL-E187-GB 1703 Index 002 Part.-No.
14/22
Start-up