5 Electrical installation
5.1 Safety precautions
Danger due to electric current
•
Work on electric components may only be carried out by trained electricians or by
persons instructed in electricity under the supervision of an electrician in accord-
ance with electrical engineering regulations.
•
The programming of the equipment takes place with switched on supply voltage
by opened cover and voltage for change-over Setpoint 1/2. Use power supplies
which guarantee reliable electrical isolation of the operating voltage as per IEC/-
DIN EN 60204-1. Consider also the general requirements for PELV circuits in
accordance with IEC/DIN EN 60204-1.
•
Inspect electrical equipment periodically: retighten loose connections
–
immedi-
ately replace damaged lines and cables.
•
Never clean electrical equipment with water or similar liquids.
Information
The respective connections are represented in the enclosure of this manual (
Connection diagram)!
5.2 EMC-compatible installation of control lines
Pay attention to maintain suf
fi
cient distance from powerlines and motor wires to prevent
interferences. The control cable may not be longer than 30 m. Screened control cables
must be used when the cable length is longer than 20 m!
5.3 Connection Voltage supply
Connection Voltage supply at terminals:
“
+Ub
”
and
“
GND
”
. Here, it must be strictly
observed that the mains voltage lies within the allowable tolerance speci
fi
cations (
Technical data and nameplate af
fi
xed to the side).
5.4 Connection of sensor
Connection of temperature sensor for measuring actual value (not in scope of delivery)
to terminals
“
TF
”
. It is possible to connect sensors of series
“
TF..
”
(KTY81-210) or
PT1000 temperature sensors. It must be paid attention to no polarity.
For a high interference immunity a capacitor must be connected directly to the sensor (1
nF parallel). With temperature sensors type TF.. (KTY81-210) a capacitor is integrated.
Attention!
Never apply line voltage to analog inputs!
Operating Instructions
TCA 150D
Electrical installation
L-BAL-E119-GB 1318 Index 002
Part.-No. 00163357-GB
7/17
