6. About Hardware
54
SMC-4DL-PCI, SMC-8DL-PCI
Table 6.2. Encoder Input Section
Item
Specification
Encode type
Incremental
Maximum counter value
8000000h - 7FFFFFFh(-134,217,728 - 134,217,727), 28 bit
Input signal type
Single-phase input (UP/DOWN/Z) / Phase input(A/B/Z)
Supported output type
Differential output, TTL level output, open-collector output
Device used
AM26LS32(T.I) or equivalence to it
Terminal resistor
150
Ω
(Separatable with SW)
Receiver input sensitivity
±200mV
In-phase input voltage range
±7V
Distance in which signal can
be extended
10m (Depending on the time of connecting the differential output,
wiring environment and input frequency)
3m (Depending on the time of connecting the open-collector output,
wiring environment and input frequency)
1.5m (Depending on the time of connecting the TTL level output,
wiring environment and input frequency)
Response frequency
5MHz duty 50% (differential output),
3MHz duty 50% (TTL level output), 1MHz duty 50% (open-collector
output)
Table 6.3. Limit Input Section
Item
Specification
Signal channel
3ch/axis (original point, Forward limit, reserve limit)
Input signal name
ORG : origin input
+LIM : positive direction end limit input
-LIM : negative direction end limit input
Input logic
Enables selecting the positive/negative logic by using the Software
Input type
Opto-isolated input (corresponding to current sink output)
Response time (Max.)
200
µ
sec
Input resistance
4.7k
Ω
Input ON current
2.0mA or more
Input OFF current
0.16mA or less
External circuit power supply 12V - 24VDC(±10%)
Table 6.4. General-purpose Input Section
Item
Specification
Signal channel
7ch/axis
Input signal name
IN1/ALM : alarm input, general-purpose input
IN2/INP : positioning completion input, general-purpose input
IN3/SD : deceleration (decelerated stop) input, general-purpose input
IN4/LTC : counter latch input, general-purpose input
IN5/PCS : positioning control start input, general-purpose input
IN6 : general-purpose input
IN7 : general-purpose input
Input logic
Enables selecting the positive/negative logic by using the Software
Input type
Opto-coupler input (corresponding to current sink output)
Response time (Max.)
200
µ
sec
Input resistance
4.7k
Ω
Input ON current
2.0mA or more
Input OFF current
0.16mA or less
External circuit power supply 12V - 24VDC(±10%)