SMC Networks LECYU Series, Руководство по эксплуатации

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4 Operation
4-26
4.4.5 Setting Encoder Output Pulse
Set the encoder output pulse using the following parameter.
Pn212
Encoder Output Pulses
Speed Position Torque
Classification
Setting Range Setting Unit Factory Setting When Enabled
16 to 1073741824 1 P/rev 2048 After restart Setup
Pulses from the encoder per revolution are divided inside the DRIVER by the number set in this parame- ter
before being output. Set the number of encoder output pulses according to the system specifications of the
machine or host PC or PLC...etc.
According to the encoder resolution, the number of encoder output pulses are limited.
Setting Range of
Encoder Output Pulses
(P/Rev)
Setting
Unit
Encoder Resolution
Upper Limit of Servomotor
Speed for Set Encoder Output
Pulses (min
-1
)
20 bits
(1,048,576 pulses)
16 to 2048 1
–
6000
16 to 16384 1
○
6000
16386 to 32768 2
○
3000
32772 to 65536 4
○
1500
65544 to 131072 8
○
750
131088 to 262144 16
○
375
Note 1. The setting range varies with the encoder resolution for the servomotor used.
An encoder output pulse setting error (A.041) will occur if the setting is outside the allowable range or does not
satisfy the setting conditions.
Pn212 = 25000 (P/Rev) is accepted, but
Pn212 = 25001 (P/Rev) is not accepted. The alarm A.041 is output because the setting unit differs from that in
the above table.
2. The upper limit of the pulse frequency is approx. 1.6 Mpps.
The servomotor speed is limited if the setting value of the encoder output pulses (Pn212) is large.
An overspeed of encoder output pulse rate alarm (A.511) will occur if the motor speed exceeds the upper limit
specified in the above table.
Output Example: When Pn212 = 16 (16-pulse output per one revolution), PAO and PBO are output as shown
below.
Preset value: 16
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
PAO
PBO
One revolution