42
d) Determine the frequency of the LTACH pulse tach at maximum machine speed. Calculation is
usually the best method. Look on the pulse tach data sheet for the number of pulses per revolution
and multiply by the revolutions per second, considering any gear ratios that may be used.
e) Determine the frequency of the RTACH pulse tach at maximum machine speed and at core
diameter. Calculation is the best method. Take all gear ratios into account.
f) Set the SW602 switches according to the frequencies in steps d) and e) above.
SW602 SWITCHES
RTACH
LTACH
Frequency
1
2
3
4
180 Hz - 1.7 KHz
Closed
Closed
Closed
Closed
1.1 KHz - 40 KHz
Open
Closed
Closed
Open
Note:
Opening switch 2 disables the RTACH output. Opening switch 3 disables the LTACH
output.
g) Set the LTACH span pot. Run the machine at maximum speed. (As an alternate method, run the
machine at 50% of maximum speed. Set the output voltages at 50% of the values specified below)
h) Measure the LTACH output voltage at test points TP601 (+) and TP603. Adjust the LTACH Span
pot. (RT601) for 10.0 volts.
i) Set the RTACH span pot. With the machine running at full speed, measure the RTACH output
voltage at test points TP602 (+) and TP603. Adjust the RTACH Span pot. (RT602) for 10.0 volts
AT THE CORE DIAMETER. As an alternate method, measure the roll diameter and adjust the
RTACH Span pot. to a voltage equal to: 10 x (core diameter)/(roll diameter)
Note:
If you ran the machine at half speed, set the output voltages at 50% of the values above.
6.9 REMOTE TENSION AMPLIFIER (See Page 7 for description, Figure 16 for switches)
The three pin transducer cable connectors are removed, one hole is covered, and a two pin connector
is installed in the other. A two conductor cable supplies the 0-10VDC tension signal from the remote
device to the SteadyWeb controller. The meter in the controller is fed from the remote device signal,
and it is calibrated by the ZERO and CAL pots. in the remote device. Switch SW102 must be set to
accept the tension signal from either the local amplifier or the remote one.
a) Set the SW102 switches as in the following table:
Summary of Contents for SteadyWeb
Page 1: ...INSTRUCTION MANUAL STEADYWEB AUTOMATIC TENSION CONTROLLER DOC 801 0783...
Page 8: ......
Page 10: ...2 1 2 STEADYWEB CONTROLLER EXPLODED VIEW Figure 1 STEADYWEB CONTROLLER EXPLODED VIEW...
Page 16: ...8 1 6 FRONT PANEL AND OPERATOR DEVICES Figure 2 FRONT PANEL and OPERATOR DEVICES...
Page 20: ...12 2 3 ELECTRICAL CONNECTIONS OF OPTIONS Figure 7 ELECTRICAL CONNECTIONS OF OPTIONS...
Page 29: ...21 5 1 THE CONTROL BOARD Figure 16 CONTROL BOARD...
Page 30: ...22 5 2 THE POWER BOARD Figure 17 POWER BOARD...
Page 56: ...48 Figure 39 TLS RELAY CONNECTIONS...
Page 70: ...62 Appendix F Transducer Electrical Connections Figure 45 MODELS C RS UPB TRANSDUCER WIRING...
Page 71: ...63 Figure 46 MODEL RFA VNW TRANSDUCER WIRING...
Page 72: ...64 Figure 47 MODELS TR NWI TRANSDUCER WIRING...
