24.7.12
Instruction manual LOCON 24, 48, 64, LTC, TERM 24 and TERM 6 V. 8.8
21
Deutschmann Automation GmbH & Co. KG
Electrical connections LOCON 24, 48, 64
The outputs and the encoder are also powered via this connection so that max. 9 A is required at
full capacity (LOCON 64).
The typical voltage at the outputs and for the encoder supply is:
Supply voltage -1V; that means: is the device being supplied with 24V DC,
then the typical output- and encoder voltage is 23V DC!
3.5.2
Connection of the equipotential bonding system
The housing must be connected to the equipotential bonding system of
the overall system via the plug provided for this. The housing is not con-
nected internally to "GND".
Equipotential bonding is important in order to reliably discharge interfer-
ence affecting supply conductors.
3.5.3
Connection of the inputs and outputs
LOCON features up to 64 outputs and 52 inputs for 24 V on the card, depending on version and
capacity stage.
Absolute or incremental encoders are used as the machine's sensors. These encoders are con-
nected at pins "Encodertrack1" to "Encodertrack13" on encoders with parallel outputs, "SSICLK"
and "SSIDAT" on SSI encoders or "Inc_Track_A" and "Inc_Track_B" on incremental encoders.
The encoders' power supply is provided via pins "+24 V encoder" and "GND".
24 V must be applied to pin "ProgEnable" for programming enable (for example, via a key-oper-
ated switch).
Pins "Prog.No.1" to "Prog.No.32" and "ProgStart" must be wired only if external program switcho-
ver is to occur (for example, via a PLC).
The outputs and the encoder are powered jointly with the
24 V power supply of the total unit
.
The outputs of LOCON 24 are positive-switching 24 V, i.e. an active output has a level equal to
the supply voltage less 1 V by comparison with GND. An output which has been reset has high
impedance.
The outputs are short-circuit-proof and may drive maximum 300 mA, whereby 8 interrelated out-
puts (output block, see chapter "Signal description") of a driver may be loaded with maximum 1
A.
If more than 300 mA is required per output, it is possible to interconnect several outputs (up to 3
outputs per driver) in which case the drive rating is up to 900 mA.
If several outputs are interconnected, the switch-on points and switch-off points in the LOCON
must be programmed absolutely identically since, otherwise, the short-circuit monitor would
respond.
In the event of a sustained short circuit or overload, the corresponding outputs are deactivated
and a corresponding error message is shown on the display.
