Rec 1 / Rec 2 Connections; K1 / K2 (Relay Contacts) - wtw EcoLine LF 170 Bedienungsanleitung

REC 1 / REC 2 connections

REC 1 / REC 2 connections
The REC 1 ( χ ) and REC 2 (temperature) current outputs can be configured as The REC 1 ( χ ) and REC 2 (temperature) current outputs can be configured as
follows: follows:
• •
0 to 20 mA 0 to 20 mA
• •
4 to 20 mA 4 to 20 mA
If terminals with a common earth are used, ensure the exact polarity of the direction If terminals with a common earth are used, ensure the exact polarity of the direction
of the current flow (+ / – ). It involves active current sources that require no external of the current flow (+ / – ). It involves active current sources that require no external
current source! current source!
Do not use an external current source as this can lead to Do not use an external current source as this can lead to
malfunction of the current outputs! malfunction of the current outputs!
Maximum load of 600 Ohm. Maximum load of 600 Ohm.

K1 / K2 (relay contacts)

K1 / K2 (relay contacts)
The K1 and K2 relay contacts are designed as potential-free closers (make contacts). The K1 and K2 relay contacts are designed as potential-free closers (make contacts).
These contacts can also be configured as openers (break contacts) via the These contacts can also be configured as openers (break contacts) via the
configuration level. The assignment of the relay to the corresponding functions is configuration level. The assignment of the relay to the corresponding functions is
undertaken by the software configuration. undertaken by the software configuration.
Note: Note:
The contacts are designed for max. 250 VAC / 5A with, however, a maximum The contacts are designed for max. 250 VAC / 5A with, however, a maximum
of 150 W. of 150 W.
88 88
Installation Installation