Wiring of the UPS, cable lengths and cable cross-sections
Destruction of screw terminals, insufficient con-
tact and loss of UL certification if no copper
wire is used and/or wrong tightening torque.
NOTICE
For wiring connection terminals use copper wire only. Tighten the screws of the
screw terminal with a torque of 5.5 lb in (0.6 Nm).
To connect the cables to X1S1, X1S2 und X1S, strip the cables by 15
mm.
Observe the following cable lengths and cross-sections:
UPS
PC
X1S1
X1S2
Com port
X1S (X10)
24 V
power supply unit
1
2
Com port
Fig. 10-4: Wiring of the UPS
VAU 01.1U and VAU 01.1S
Cable length
①
Cross-sections when wired firmly
1 m to 7 m
2.5 mm
2
(AWG13)
8 m to 10 m
4.0 mm
2
(AWG11)
①
see
fig. 10-4 "Wiring of the UPS" on page 23
Tab. 10-2: Required cable cross-sections for the DC 24 V voltage supply depending on the
cable length when wired firmly
The following data applies if the load changes immediately caused by connect-
ing or disconnecting loads (not wired firmly) at the UPS:
VAU 01.1
Bosch Rexroth AG
Assembly, Disassembly and Electrical Installation
DOK-SUPPL*-VAU*01.1X**-IT02-EN-P
23/53
