KE-2050/KE-2060, KE-2050R/2055R/KE-2060R Maintenance Manual
14-43
14-7-3. Adjusting the Stepping Driver
A stepping motor is used for the centering motor and support table motor of the transport unit.
To rotate the stepping motor correctly, it is necessary to adjust the 5-phase stepping driver.
• Centering motor (Transport stepping motor) HM001320000 5-phase stepping driver
• Support table motor (non-EN specification) HX004200000 5-phase stepping driver
• Support table motor (EN specification) HX005450000 5-phase stepping driver
14-7-3-1. Adjusting the Drive Current of the Transport Stepping Motor
<Adjustment Procedure>
c Before starting the adjustment procedure, make sure that the DC power source output
voltage has been properly adjusted.
d Turn the transport stepping motor and measure the voltage across [CP1] and [CP2] on the
five-phase stepping driver with a digital voltmeter.
Connect the positive (+) and negative (-) probes of the digital voltmeter to [CP1] and [CP2],
respectively.
e Slowly turn the RUN variable resistor so that the voltage across [CP1] and [CP2] becomes
2.8 V ± 0.01 V.
f Set the DIP switches on the step driver as shown in the figure below.
ON
1 2
1. ON
2. OFF
• Specification value
Drive current: 1.4 A
± 0.005 A/phase
(Measured with the voltage across CP1 and
CP2. 2.8 V
± 0.01 V)
Figure 14-7-3-1-1 DIP Switch Settings
Rev. 2.00
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