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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
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.
6. Installation
The device can be mounted:
• Distribution board or switchgear cabinet on 35 mm rails according to EN 60715
• wall-mounting with 3 x screws M4
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.
Edited (Date / Name): 16.07.09 Ba/Su
Page 6 von 20
ZIEHL industrie-elektronik GmbH + Co KG, Daimlerstr.13, D-74523 Schwäbisch Hall, Tel.: +49 791 504-0, Fax: -56, e-mail: info@ziehl.de
this error is recognized by regular
Drawing No.: 12320-0702-01
Name: TR 1200
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