Keller ITS CellaCast PX 8 Series, Quick Start Manual, Page: 15 / 84

EN
Quick Start Guide CellaCast PX 8x
6 Assembly fibre optic cable
One end of the optical fibre has a nameplate showing the serial number of the corresponding
basic pyrometer. This is the end which must be screwed onto the pyrometer. For proper connec-
tion, the arrow on the nameplate of the fibre optic cable and the arrow on the pyrometer should
point toward each other. The serial number of the measuring head should also correspond to
the pyrometer.
ATTENTION The fibre optic cable must not be exposed to tensile load and must not be
twisted. The minimum bending radius is 125 mm.
7 Electrical connection
The pyrometer is supplied with low voltage 24 DC (18 ... 32 V DC).
ATTENTION The device may only be installed by a skilled, qualified electrician. Do not
connect it while the voltage supply source is turned on. Please observe
international safety regulations at all times.
► Disconnect the pyrometer from any voltage source.
► Connect the pyrometer according to the following schematic.
Pin 1 BN (brown) L+ (Power supply24V DC)
Pin 4 BK (black) Open Collector switching output; I
max
= 150 mA or IO-Link OUT 1
Pin 5 GY (grey) Open Collector switching output; I
max
= 150 m OUT2
Pin 2 WH (white) Analogue output; 0/4 ... 20mA
Pin 3 BU (blue) L- (GND)
The pyrometer must be protected against electromagnetic fields. Therefore, use a shiel-
ded cable, connecting it via connector casing of the pyrometer to the housing.
Use a flyback diode when switching inductive loads.