Micro Innovations TravelCam Plus Bedienungsanleitung PDF herunterladen (Seite 9)

FEEDBACK POTENTIOMETER

The feedback potentiometer gear has

an over–torque shift engagement

which operates if the limits of the ac-

tive region of the potentiometer are

exceeded. This situation can occur

when the manual override handwheel

is turned past 90∞ or below 0∞ travel.

The potentiometer gear always re-

mains engaged with the drive gear,

but shifts on its shaft to prevent dam-

age and maintain proper alignment.

VOLTAGE SPIKE PROTECTION

Voltage spikes that can damage

electrical equipment are very common

in industrial locations. Large voltage

spikes can be caused by switching

power loads, such as large motor

drives, at the customer location. The

output stage TRIACs of the Servo are

protected against damage from

voltage spikes by a special combina-

tion of

• limit switch circuitry

• metal oxide varistor (MOV) for

transient voltage suppression

• zero crossing detection

DEVICENET SERVO

Bray also offers the Series 70 with the

most advanced serial bus communica-

tion Servo on the market. The Bray

DeviceNet Servo is fully ODVA (Open

DeviceNet Vendor Association)

compliant. Benefits include greatly

simplified field wiring and installation,

advanced control and diagnostics in

real-time from a remote location, and

full network integration. Please con-

tact your Bray representative for more

information.

CONTROL STATION (Optional)

Bray has designed a manual local

electrical control station that flush

mounts directly to the R

4

. The Control

Station features:

• a local–off–remote control switch

• an open–stop–close switch

• two lights which locally indicate

open and closed valve position

The cover plate can be rotated in

any 90∞ increment, allowing the

customer to operate and view the

station with ease. The enclosure is

aluminum and weatherproof (NEMA

4, 4X, IP 65). Additionally, the control

station has captive cover bolts and

two input ports available in the

following thread connections: 3/4" NPT

or M25. Two different multi-pin,

watertight electrical cable connections

are also available.

Control Station

9

ServoPlus II

shown

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