5.1.4. Use Verify to validate setup
(section 4.2.7)
5.2. Intermediate setup
ritical mixing operation must be monitored and maintained. A 4”, 94 tooth, 2
etral pitch target is mounted to the mixer driveshaft. The user wants to be able to
ally see the speed displayed in RPM, and have a 4-20mA output scaled to the speed
ge. The user also needs to set up 4 alarms. Alarm 1 & 2 must be failsafe and there
l utilize the me
A c 4
diam
visu
ran fore
wil chanical relays with Normally Closed contacts. Alarm 3 & 4 will be set
for over and under speed and will utilize the Digital outputs. Over and under speed alarm
setpoints are 300 and 400 RPM respectively with 50 RPM hysteresis. The failsafe limits
are s
for ol
roo
l Requirements
2.2. Connections
ne on the bench and tested using Verify and
Dia o ollows:
3.4.2.
TROL
plus
remote display to TACHTROL 30 per section
4.1.
3.3.2.
mally closed contacts) to
• Connect alarm Digital 1 & 2 from TT30 to speed alarm per section 3.3.2.
10% beyond the normal setpoints (270 and 440 respectively) with 80 RPM hysteresi
under speed and 90 RPM for over speed. A remote display is required for a contr
m.
5.2.1. Materia
1 TACHTROL 30 (TT30): Use for speed with display and analog output
requirement
1 TACHTROL
plus
(TT
plus
): Use as remote display for tachometer instruments
1 AI-TEK Single Channel Hall Effect Sensor
5.
Instrument configuration can be do
gn stics. Connections can then be made as f
• Connect power per section
• Connect TACH
3.3.2 and 3.3.3.
• Connect sensor to TACHTROL 30 per section 3.
• Connect Analog output per section
• Connect alarm Relay 1 & 2 from TT30 (nor
failsafe alarm per section 3.3.2.
100
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