TR1200
12320-0702-03
Seite
6 / 20
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ATTENTION!
When all relays are programmed in operation current mode (= pick up at alarm), a
loss of the supply voltage or an instrument failure can remain unidentified. When the
relay is applied as control instrument, the operator must ensure, that this error is
recognized by regular examinations. We recommend to program and accordingly
evaluate at least one relay in the closed-circuit current mode.
Caution! Temperature sensor terminals
The pin connections of Sensors 1…6 (below) are not compatible with Sensors 7…12 (above). If a 3-wire-
technique sensor connected below is to be connected above, both external connections must be swapped.
Temperature sensors must be connected to the plug-in terminals T11, T12, T13 etc. To ensure proper
operation this plug-in terminals have gold-plated contacts. Do not use these plugs for other terminals.
Caution!
The sensor inputs and the RS485 interface are applied to the same electrical potential but are galvanically
isolated (2kV) for the auxiliary voltage. Take this into consideration during configuration.
RS485 connection:
Use RS485 Interface only with shielded wires.
Large cable lengths may shift the potential ground and the transmission can be disturbed.
Corrective measures can be galvanic separation or an additional ground wire.
Max. allowed cable length is 1000m.
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Installation
The device can be mounted:
Distribution board or switchgear cabinet on 35 mm rails according to EN 60715
Observe the maximum temperature permissible when installing in switching cabinet. Make sure
sufficient space to other equipment or heat sources. If the cooling becomes more difficult e.g.
through close proximity of apparatus with elevated surface temperature or hindrance of the cooling
air, the tolerable environmental temperature is diminishing.
Attention! Universal power supply
The unit is equipped with a universal power supply that is suitable for DC- and AC-
voltages. Before connecting the unit to the current, make sure that the allowed scope
of voltage of the control voltage Us, written on the lateral type plate, corresponds to
the supply voltage of the unit.
A circuit-breaker or switch must be situated within easy reach of the
unit and fused. Installation excess current protection should be ≤ 10 A.
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