page 9 of 25 GBB-EXKOM-08157/3
3.3 Technical data of QV II Quench Valve
Compressed-air connection: G1/4" at pressure reducer
Compressed-air supply: Minimum 6 bar
Compressed-air monitoring: Via pressure switch at tank,
signal to EXKOP
®MINI
Safety Controller
Commissioning pressure: 5.5 bar
Minimum operating pressure: 5.0 bar
Voltage supply: 24 V DC via EXKOP
®MINI
Safety Controller (max 100 W)
4. EXKOP
®MINI
Safety Controller
4.1 Installation notes
The EXKOP
®
Safety Controller is delivered completely wired in a housing with
lockable door. The controller should be installed in an easily visible location in a dry,
heated room.
Supply voltage variations (24 VDC) in the range of +/-10 % are acceptable. Power
consumption approx. 100 W.
In the case of higher voltage supply variations or extreme transient spikes, the use of
a main filter and/or voltage stabilizer is recommended.
The connecting cables to the transformer isolated barrier KFD2-ST2-Ex1.LB are
monitored for open-circuit and short-circuit.
Faults are indicated by means of LED's cause the immediately closing of QV II
Quench Valve.
For trouble-free operation, we recommend the use of shielded cables at the inputs of
the EXKOP
®MINI
Safety Controller, since disturbing pulses can be produced in
industrial plants through the use of high-current or high-voltage cables and high
inductance or capacitance.
The maximum cable length between the EXKOP
®
Safety Controller and individual
control components (QV Quench Valve, bursting disc,
Q-Rohr
®
etc.) must not exceed 600 m.
The regulations of VDE100 (or equivalent) must be observed.
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