Tina 5A
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Technical Data
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Manufacturer.............................. JOKAB SAFETY
Ordering Data............................................ Tina 5A
Safety Category together with Vital/Pluto
(according to EN 954-1)...................................... 4
Color............................................. black and beige
Weight............................................................ 135 g
Bypass Connection............ Tina 5A can bypass
max. 30 Eden/Tina - units
or 6 Spot T/R
Connections
A1-A2 Supply............................... 24 VDC +/- 15%
S1 Input dynamic signal............................ 10 mA
S2 Output dynamic
signal modified.................................. 20 mA max.
S3 Output dynamic
signal modified twice........................ 20 mA max.
L1-L2 Bypass indication lamp.............. min. 1W,
max. 5W
(or resistor when lamp is not required
820 ohm/2W. The Tina 5A is supplied
with the resistor connected across
terminals L1, L2. This resistor must be
taken away and replaced with a
suitable rated lamp when bypass
indication is required.)
Y14 Information
output bypass on............................... 10 mA max.
Current Consumption A1-A2
No bypass.................................................... 10 mA
During bypass using
5 W indication lamp................................. 240 mA
Mounting....................................... 35 mm Din-rail
Operating Temperature
Range............................................. -10ºC to +55ºC
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Approvals
  
LED Indication
Signal....................................... Dynamic input S1 ok
On................................................... Supply voltage ok
Mute................................. Dynamic output on S2, S3
and 24 VDC to L1-L2 ok
Protection Class
Enclosure............................................................ IP 40
Connection Blocks............................................ IP 20
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Function - Tina 5A
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The Tina 5A is designed for bypassing of safety devices connected to the Vital safety circuit and for supervision of lamp indication.
During bypassing of safety devices e.g. a light grid or an interlocked gate, it must only be possible to allow the bypass function if a lamp indication is on. The lamp indication must therefore be supervised. Whether indication is required depends on the specific situation and result of risk analysis.
When the Tina 5A receives a coded dynamic signal to S1 and the bypass indication lamp is on (connected across L1-L2), a bypassing output signal is provided on S2 and S3. A broken or short circuit in the indication lamp leads to an interruption of the bypass output signal on S2 and S3, therefore stopping the bypassing.
The dynamic signal to S1 on Tina 5A must be the input signal from the first of the safety devices intended to bypass. The signal can be connected via output contacts from a safety relay, a safety timer or be initiated via a unit providing the dynamic coded signal as for example an Eden sensor or a Spot light beam.
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The dynamic coded output signal from S2 or S3 is to be connected to the output signal from the last safety device which is to be bypassed.
S2 is used if:
- An odd number of dynamic safety units is to be bypassed using an odd number of dynamic safety units. See drawing HE3824C.
- An even number of dynamic safety units is to be bypassed using an even number of dynamic safety units. See drawing HE3824F.
S3 is used if:
- An odd number of dynamic safety units is to be bypassed using an even number of dynamic safety units. See drawing HE3824D.
- An even number of dynamic safety units is to be bypassed using an odd number of dynamic safety units. See drawing HE3824E.
The total number of dynamic safety units is calculated by adding the number of Eden, Spot and Tina units connected in the Vital circuit.
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