LESA Messtechnik PS.2LCD, Руководство по эксплуатации

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Installation:
A section of 136.5 x 136.5 mm is needed for the operating device. The operating device must be
implemented in the section and anchored there with two anchor hooks. On the standard model, the
operating device comes with the lockable transparent door, thereby meeting protection class IP 45.
The cover for the control device absolutely must be installed, for it not only offers protection against
physical contact, it simultaneously anchors the plug on the bus cable in its position.
The connection cable between the operating device and the control device is 80 cm long, and must not
be extended. Development work placed great emphasis on the bus cable's immunity to interference.
The EMT lab then tested and evidenced that the immunity to interference well exceeded the applicable
norms. Functional security is definitely established. In order to avoid unnecessary interference peaks
on the cable, surplus cable should be rolled up. In general, it's always important to keep power
electronics and the electronic system separate to the extent possible. The bus cable should not come
into contact with other cables prone to interference, such as those coming from the circuit breaker or
from volt and amp metres in a cable harness. The cable does not have to be shielded.
CAUTION:
Installation and wiring, as well as commissioning may only be performed by trained
technical personnel. Prior to commissioning, all menu points must be checked once
again, and corrected as needed.
When wiring external error report modules, to the extent possible, the contactor
combinations must be locked such that switch off is guaranteed regardless of the
PS2 system. This provides additional safety.
The PS2 system itself is not protected against explosion, and must be installed
outside of zones at risk of explosion.
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PS2 – SYSTEM ver.1.19