Datasheet

NX series I/O 37
Pulse output unit
Item Specifications
Model NX-PG0112 NX-PG0122 NX-PG0232-5 NX-PG0242-5 NX-PG0332-5 NX-PG0342-5
Name Pulse output unit
Number of axes 1 axis 2 axis 4 axis
I/O signals External inputs: 2 general-pur-
pose inputs / External outputs: 3
(forward direction pulse, reverse
direction pulse and a general-
purpose outputs)
Inputs: 5 per axis. External inputs
*1
Outputs: 5 per axis (forward direction pulse, reverse direction pulse
and 3 external outputs per channel
*2
)
*1. You can use the external input 0 as a latch input.
*2. You can use the external output 0 as an error counter reset output.
Control method Open-loop control through pulse
train output
Open-loop control through pulse string output
Controlled drive Servo drive with a pulse train
input or a stepper motor drive
Servo drive with a pulse string input or a stepper motor drive
Pulse output form Open collector output Line driver output
Control unit Pulses
Maximum pulse output speed 500 kpps 4 Mpps
Pulse output method Forward/reverse direction pulse
outputs or pulse + direction
outputs
Forward/reverse direction pulse outputs, pulse + direction outputs
or phase differential pulse output multiplication x1/2/4
Position control range –2,147,483,648 to 2,147,483,647 pulses
Velocity control range 1 to 500,000 pps 1 to 4,000,000 pps
Positioning
*3
*3. These functions are supported when you also use the MC function module in the NJ-series CPU unit. Refer to the NJ-series CPU unit motion control user’s manual
(Cat.No. W507) for details. A pulse output unit only outputs pulses during the control period based on commands received at a fixed period. Target position calcu-
lations (distribution calculations) for acceleration/deceleration control or for each control period must be performed on the controller that is connected as the host.
Single-axis position control Absolute positioning, relative positioning and interrupt feeding
Single-axis velocity control Velocity control (velocity feeding in position control mode)
Single-axis synchronized control Cam operation and gear operation
Single-axis manual operation Jogging
Auxiliary function for single-axis control Homing, stopping and override changes
External input
specifications
Input voltage 20.4 to 28.8 VDC
(24 VDC +20%/–15%)
21.6 to 26.4 VDC (24 VDC +10%/–10%)
Input current 4.6 mA (24 VDC)
ON voltage/ON current 15 VDC min./3 mA min.
OFF voltage/OFF current 4.0 VDC max./1 mA max.
ON/OFF response time 1 s max./2 s max. External inputs 0 and 1: 1 s max./2 s max.
External inputs 2 to 4: 20 s max./400 s max.
Internal I/O common processing NPN PNP NPN PNP NPN PNP
Line receiver
inputs
specifications
Input voltage - EIA standard RS-422-A line driver levels
High/Low level input voltage V
IT+
: 0.1 V min./V
IT-
: -0.1 V max.
Input impedance 120  ±5%
Hysteresis voltage Vhys (V
IT+
-V
IT-
): 60 mV
External output
specifications
Rated voltage 24 VDC (15 to 28.8 VDC)
Maximum load current 30 mA
ON/OFF response time 5 s max./5 s max. External output
0: 5 s max./5
s max.
External output
1 and 2: 0.5 ms
max./1 ms max.
External output
0: 5 s max./
200 s max.
External output
1 and 2: 0.5 ms
max./1 ms max.
External output
0: 5 s max./5
s max.
External output
1 and 2: 0.5 ms
max./1 ms max.
External output
0: 5 s max./
200 s max.
External output
1 and 2: 0.5 ms
max./1 ms max.
Internal I/O common processing NPN PNP NPN PNP NPN PNP
Residual voltage 1.0 V max.
Leakage current 0.1 mA
Line driver
output
specifications
Output voltage - RS-422-A line driver level (equivalent to AM26C31)
Maximum load current 20 mA
Maximum output frequency 4 Mpps
Dielectric strength 510 VAC between isolated circuits for 1 minute at a leakage current of 5 mA max.
Insulation resistance 20 M min. between isolated circuits (at 100 VDC)
Isolation method External inputs: Photocoupler isolation
External outputs: Digital isolator
Unit power consumption 0.8 W max. 0.9 W max. 1.20 W max. 1.30 W max.
I/O power supply source Supplied from the NX bus.
20.4 to 28.8 VDC
(24 VDC +20%/–15%)
Supplied from external source. 20.4 to 28.8 VDC
(24 VDC +20%/–15%)
Current consumption from I/O power supply 20 mA 50 mA 50 mA/CN max.
Current capacity of I/O power supply terminal 0.1 A max. per terminal Without I/O power supply terminal
Cable length 3 m max. Line driver outputs: 10 m max.
Other I/O: 3 m max.
I/O refreshing method Synchronous I/O refreshing
*4
*4. The I/O refreshing method is automatically set according to the connected communication unit and CPU unit.
Terminal block type Screwless push-in terminal
16 terminals (A + B)
MIL connector
34 terminals
2 MIL connectors
34 terminals
Dimensions (W x H x D) 12 × 100 × 71 mm 30 × 100 × 71 mm
Weight 70 g 110 g 150 g
Failure detection None
Protection None