Wintriss SmartPAC2, Руководство пользователя

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1126700 SmartPAC 2 User Manual
2-38 Installation
relative to this signal, SmartPAC 2 knows that the resolver drive has slipped or broken or the
resolver itself has failed and issues an Emergency Stop command, simultaneously displaying
an error message.
Find a mounting location that allows the magnet to move past the switch once on every stroke
and close enough for the switch to sense the presence of the magnet. A gap between switch
and magnet of between 1/8 in. and 3/16 in. (about 3 – 5 mm) is recommended. The position
sensor must be mounted so that it is not connected to the resolver shaft or sprocket or any of
the drive components leading to the resolver and continue to operate if the resolver or its drive
mechanism fails. The position sensor must be installed only after the resolver is zeroed.
To generate an adequate position signal, the magnet should be mounted so the switch senses it
for at least 10
°
to 15
°
of the stroke. For best results at higher press speeds, mount the magnet
on a shaft of 2 in. to 3 in. (about 50 – 75 mm) diameter. As shown in Figure 2-25, the larger
the diameter of the shaft, the shorter the “dwell,” the period during which the switch senses
the magnet. To obtain a longer dwell, therefore, mount the magnet on a shaft of smaller
diameter.
To install the position sensor, do the following:
1.
Make sure that the resolver has been zeroed (see page 2-35).
2.
Turn on power to SmartPAC 2.
3.
Turn the Program/Run key to PROG. The Main Program Menu displays.
4.
Press the 1 and CLEAR keys at the same time for one second to display the Main
Initialization Menu (see Figure 2-22, page 2-35).
5.
Select POSITION SENSOR. The Position Sensor screen, shown in Figure 2-26,
page 2-39, displays.
6.
Check to make sure that the setting for the POSITION SENSOR MODE item is
DISABLED. If it isn’t, press ENTER to toggle to the DISABLED setting.
Figure 2-25. Position Sensor Dwell on Different Diameter Shafts
5” diameter
23 of dwell
o
5”
10” diameter
11 of dwell
o
10”
Actuating
Magnet
23
o
11
o