Instructions

Mounting
akYtec GmbH · Vahrenwalder Str. 269 A · 30179 Hannover · Germany · Tel.: [phone] · www.akytec.de
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4. Mounting
The extension module PRM is designed for DIN rail mounting. For the dimension drawing see Ap-
pendix A.
The safety precautions from the section 4.1 and the operating conditions from the section 2.1 must
be observed.
After mounting on the DIN rail, first the internal bus connection should be implemented (see 4.2 ‘In-
ternal bus’), then the power supply and the external devices should be connected to the module
terminal blocks (see 4.3 ‘Wiring’).
For device quick replacement see 4.4.
4.1 Intended use
DANGER
The device must be powered off before connecting to internal bus or I/O devices.
WARNING
Improper installation can cause serious or minor injuries or device damage.
Installation must be performed only by fully qualified personnel.
WARNING
Ensure that the mains voltage matches the voltage marked on the nameplate!
Ensure that the device is provided with its own power supply line and electric fuse!
Do not feed any external devices from the power contacts of the device.
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NOTICE
It is necessary to observe the polarity while connecting 24V power sources. Improper
connection can damage the device.
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NOTICE
Supply voltage for 24 VDC models may not exceed 30 V. Higher voltage can damage the
device.
If the supply voltage is lower than 19 V DC, the device cannot operate properly but will not be dam-
aged.
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NOTICE Signal cables should be routed separately or screened from the supply cables.
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NOTICE
Shielded cable should be used for the signal lines to ensure the EMC precautions.
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NOTICE
Removing of the terminal blocks may be performed only after powering off the device and
all connected equipment.
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NOTICE
Before switching on, make sure that the device was stored at the specified ambient tem-
perature (-20 ... +55 °C) for at least 30 minutes.
4.2 Internal bus
A high-speed internal bus that connects PR200 to PRM modules provides the same high-speed
performance of the module I/Os that of the built-in I/Os of the basic device. This allows reading the
module input vales and writing the module output values within one cycle of the program running
on PR200.
The PRM modules are connected to PR200 in series. Maximum two modules can be connected
(Fig. 4.1). To implement the internal bus, connect PRM to PR200, using the 4.5 cm flat cable in-
cluded to the module.
PRM has two connectors marked ‘EXT’ located under the right and left covers on the device front.
The connector under the left cover is used to connect the 1st PRM to PR200 or the 2nd PRM to the