Tachometer Maintenance
23 I Test Alerts (Dual Setpoint Tach.)
r
0
UN
ncn
PROXIMITOR
PROXIMITOR
KEYPHASOR OR GEAR
1. Disconnect the COM and IN wiring from the Transducer
A and B terminals on the Signal Input Module.
2. Connect a function generator output to an oscilloscope
input. Adjust the function generator output until a sine or
square wave having sufficient amplitude t o trigger the
tachometer is displayed.
3. Disconnect the function generator from the oscilloscope.
Connect the function generator t o the XDCR A and B
terminals on the Signal Input Module.
4. Adjust t h e function generator frequency until t h e
Tachometer displays an RPM reading below the over speed
setpoint(s) and/or above the under speed setpoint(s).
5. Press the RESET switch on the System Monitor and
verify that the TRIGGER OK LEDs are on, and the ALERT
1 and ALERT 2 LEDs are off.
83871-01 I l l
CAUTION
Tests will exceed Alert set
point levels causing Alerts
to activate. This could result
in r e l a y contact s t a t e
change. S e e B y p a s s
Section 17.
/4\ WARNING
High Voltage present
could c a u s e s h o c k ,
burns or death.
Do Not touch exposed
wires or terminals.
•
•
40
Содержание 3300/50
Страница 5: ...Tachometer Operation Blank Page 83870 01 i v...
Страница 7: ...Tachometer Operation 83870 01 Blank Page v i...
Страница 9: ...Tachometer Operation Blank Page 83870 01 v i i i...
Страница 37: ......
Страница 41: ...Tachometer Maintenance Blank Page i v...
Страница 43: ...Tachometer Maintenance Blank Page v i...
Страница 108: ...Tachometer Maintenance 83871 01 34 Appendix SCHEMATICS AND TECHNICAL DRAWINGS 63...
Страница 109: ......
Страница 114: ...A t It gg 0 4 4 0 5 I I I T z r a r t 4 4 4 4 4 4 JL 3 3 0 0 5 0 TACHOMETER PWA AND SCHEMATIC DRAWINGS S H E E T 5 O F 9...
Страница 116: ...4 w t g17 i I 4 4 4 Z V 7 4 t 1I t 3 3 0 0 5 0 TACHOMETER PWA AND SCHEMATIC DRAWINGS S H E E T 7 O F 9...
Страница 120: ...v S i g n a l I n p u t R e l a y M o d u l e E p o x y S c h e m a t i c Page 1 o f 2...