User's Manual

DIB-500 R4.1 Setup and commissioning
Connection to the electrical system
110 Installation, Operation and Service Manual 90DIB500R41IM_FCC02 – 99.1
5.6.3 Connecting the voltage supply
The procedure for connecting the voltage supply cable differs depending on the type of
voltage supply (V
DC
, optional V
AC
).
Risk of damage
Connecting V
AC
and V
DC
power supply cables at the same time can damage the
DIB-500 R4.1.
➔ Never connect the V
AC
and V
DC
voltage supply cables at the same time.
➔ The connection must be made by an electrician.
The procedures for connecting the V
DC
and V
AC
voltage supply are described in the fol-
lowing sections.
5.6.3.1 Connecting the V
DC
voltage supply
In the case of a DIB-500 R4.1 with V
DC
voltage supply, the voltage supply is connected
directly via the corresponding terminals of the terminal block, see 3.1.5 on page 45.
Clamp specification
The terminals are dimensioned for cable cross sections of up to 4 mm
2
.
Proceed as follows to connect the voltage supply cable:
Preparation:
✓ The voltage source on site must be switched off.
✓ The equipment rack must be connected to the grounding system.
✓ The toggle switches must be set to the "Off" position ("downward" switch position).
✓ The site must be prepared in compliance with the document "Site Requirements".
✓ The top cover of the equipment rack must have been removed.
✓ The reference potential must have been defined.
Carry out the following steps:
Cable damage
If cables are routed over sharp edges or in bending radiuses too small for the cables,
the cables may be damaged.
➔ Never route cables over sharp edges and always maintain to the bending radius.