TCW242-S_R1.0 – July 2021
Page 4
CAUTION: The device does not contain any internal overcurrent protection facilities on the
relays’ contact lines.
External fuses or short circuit current limiting circuit breakers, rated to 3 Amps, are to be
used for overcurrent protection of the connecting lines.
Internal FLASH memory
Settings segment endurance: 100 000 cycles (Every setting change is a memory cycle).
Data logger segment endurance: 100 000 full scrolls (70000 records) of the logger.
Update segment endurance: 100 000 cycles (updates).
Lithium battery
Type: CR1220
Caution!
Risk of explosion if the battery is replaced by an incorrect type.
5.
LED indicators
The following indicators show the status of the controller:
PWR
(red) – in working mode shines, blinks together with STS if there is a hardware error;
STS
(yellow) – flashes when the main program of the controller is executed;
NET
(orange) – network status - ON when a link is established, blinks if there is an activity.
6.
Installation and setup
This device must be installed by qualified personnel.
This device must not be installed directly outdoors.
The installation consists of mounting the device, connecting to an IP network, connecting inputs and
outputs, providing power and configuring via a web browser.
6.1.
Mounting
TCW242-S should be mounted in a clean and dry location on a non-flammable surface. Ventilation is
recommended for installations where the ambient air temperature is expected to be high.
Mount the device to a wall by using two plastic dowels 8x60mm (example Würth GmbH 0912
802 002) and two dowel screws 6x70mm (example Würth GmbH 0157 06 70). Attach the screws to
the surface vertically. See Appendix-A, fig. 1 for mechanical details.
Maintain spacing from adjacent equipment. Allow 50 mm of space on all sides, as shown in fig. 2 in
Appendix A, this provides ventilation and electrical isolation
TCW242-S can be mounted to a standard (35mm by 7.55mm) DIN rail. Attach the controller to the
DIN rail by hooking the hook on the back of the enclosure to the DIN rail and then snap the bottom
hook into place.
6.2.
Connection
Attention! Disconnect power supply before wiring.
The correct wiring procedure is as follows:
Make
sure power is turned off;
Make wiring connections to the terminals;
Apply power.
Make sure that the wires are properly attached to the terminals and that the terminals are
tightened. Not the proper wiring and configuration can cause permanent damage to TCW242-S or
the equipment to which it is connected or both.
Summary of Contents for TCW242-S
Page 1: ......
Page 52: ...TCW242 S_R1 0 July 2021 Page 52 Appendix A Fig 1 Fig 2...
