— 5-6 —
5.2.3. Setting the Polarity (A or B contact) of the Input Ports
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The shipping set of polarity for all CN2 input signal ports is A contact.
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The polarity of some input signal ports can be changed to B contact in an ESA25 Driver Unit.
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The ports of which the polarity can be changed are only four signals below. The other ports are
fixed to A contact.
EMST : Emergency stop
HLS
: Home limit switch
OTP
: + direction overtravel limit switch (CW direction)
OTM : - direction overtravel limit switch (CCW direction)
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The polarity can be changed by the parameter AB.
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The password input is necessary before inputting AB parameter.
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Table 5-6 shows the data and port. Refer to “Setting Example” below and the explanation of AB
parameter.
Table 5-6
Data digit
n1
n2
n3
n4
n5
n6
n7
n8
CN2 Pin No.
25
12
24
11
23
10
22
9
Signal name
SVON
EMST
IOFF
HLS
HOS
CLR
OTM
OTP
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Meaning of data
0 = A contact (normally open)
1 = B contact (normally close)
X = Cannot be changed just after read out the setting of polarity.
When setting polarity, inputting X means no change of polarity of the port.
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See “12. Command and Parameter” for more details.
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