2011-07-01/00561073 [SCR Power Controller TYA202] 15
2 Installation
2.1 Important installation notes
Safety regula-
tions
k The choice of cable material, the installation and the electrical connection
of the device must conform to the requirements of VDE 0100 "Regulations
on the Installation of Power Circuits with Nominal Voltages below AC
1000 V" or the appropriate local/national regulations.
k Only allow qualified electricians to carry out the electrical connection.
k An isolating switch must be connected between the supply and the device
to allow disconnection of the device (all poles) from the voltage supply be-
fore the inside of the device is accessed.
k Clearance/safety distances in the device meet the requirements for double
insulation.
When mounting the connecting cable, ensure that the cables are fitted ac-
cording to regulations and that the safety gaps are maintained.
Fuse protection k Fuse protection in accordance with VDE regulations must be installed for
the wiring of the voltage supply in the power section. The supply protection
can also be achieved by a circuit-breaker in the supply lead. This must be
dimensioned for the power consumption of the power controller.
k A semi-conductor fuse is installed to protect the controller in the event of a
ground fault/short circuit. In the event of a fault/defect, it may only be re-
placed by an original JUMO semi-conductor fuse.
v Chapter 8.2 „Replace defective semi-conductor fuse“
Wiring Load and control cables should be laid separately if possible. Fuses (e.g. 2A
type Neozed) must also be fitted in the control circuit for lead protection.
PE connection h Provide a direct connection between the PE of the supply network and PE
of the power controller. Connect to the PE terminal.
The cross-section of the PE conductor must be at least as large as the cross-
section of the voltage supply conductors to the power section. If the protec-
tive earth conductor is not part of the supply cable or its sheathing, the chosen
conductor must have a cross-section of at least 2.5 mm
2
(if mechanically pro-
tected) or at least 4mm
2
(if the PE conductor is not mechanically protected).
v see VDE 0100 Part 540
Check h that the data given on the type plate (rated load voltage, load current) corre-
sponds to the data for the system.
h that the rotary electrical field has clockwise phasing (if the economy circuit
configuration is used).
h that the configuration e.g. of the analog inputs correspond to the wiring.
h Only connect the analog input for default set point values to the master. The
slave receives its information via the patch cable.
Load
connection
h The electronic switching device (2 antiparallel SCRs) are in circuit between
the terminals U1 and U2.
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