Connect-Tek Transa PRO 17 Manuál s instrukcemi stáhnout pdf (Strana 71)

Non-Failsafe Setpoint

Non-Failsafe refers to a mode of operation that utilizes the normally open

set of contacts on a relay, where during normal operation the relay is

energized and the contacts are held closed. In the event of power loss to

the instrument, an alarm condition will not result at the switched output

can

4.2.4.2.4.

device. Alarm condition refers to a switched output state that signals a

fault to auxiliary or support equipment. This type of relay behavior should

be used in applications where loss of speed control

be tolerated and

will not result in a hazardous condition. All Relay and Digital switched

outputs are capable of non-failsafe switching.

4.2.4.3. Setpoint Categories

Both failsafe and non-failsafe setpoints have two categories of

setpoint operation, Overspeed and Underspeed.

sed where control of a condition

g is required.

Underspeed setpoints are used where control of a condition

involving too low a speed is required

2.4.3.1. Overspeed Setpoint

Overspeed setpoints are u

involvin excess speed

4.2.4.3.2. nderspeed Setpoint

1 2 ... 66 67 68 69 70 71 72 73 74 75 76 ... 132 133

Žádné komentáře

Connect-Tek Transa PRO 17 Manuál s instrukcemi Strana 71