Mounting; Electrical Connections - PMA KS 90 Mode D'emploi

MOUNTING

With a sealing Ü between controller front and panel, the panel reaches protection
mode IP 54. For access to the S.I.L. switches A and LOCK, remove the controller
module from the housing by pulling it forwards at the top and bottom cut-outs.
Caution! The instrument contains ESD-hazarded components.
EARTH TERMINAL (for grounding interferences)
If outside interference voltages act on the instrument, functional troubles may be
caused (concerns also high-frequency interferences). For grounding interferences
and ensuring the electromagnetic immunity, an earth must be connected: Terminal
6 must be connected to earth potential by means of a short cable (approx. 20 cm, e.g.
to switch cabinet ground)! Keep this cable separate from mains cables.

ELECTRICAL CONNECTIONS

Keep mains cables separate from signal and measuring cables. We recommend
twisted and screened measuring cables (screen connected to earth).
Connected final elements must be equipped with protective circuits to manufacturer
specification. This avoids voltage peaks which can cause trouble to the controller.
The instruments must be protected by an individual or common fuse for a max. power
consumption of 10 VA per unit (standard fuse ratings, min. 1 A)!
a Signal and measurement circuits may carry max. 50 V r.m.s. against ground,
mains circuits may carry max. 250 V r.m.s. between terminals.
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