Determining The Internal Pulse Output Frequency - Omron CP1L-EL20DR-D Operation Manual

Inverter Positioning
7-3-7

Determining the Internal Pulse Output Frequency

Frequency of
internal pulse
output (Hz)
Note
Operand
D First destina- D
tion word for
present value
D+1 Upper 4
Destination D
word for
inverter posi-
tioning status
(P = #0020 or
#0021)
Use the following formula to calculate the internal pulse frequency (Hz) to out-
put from the pulse output instruction (e.g., PLS2) based on the power supply
frequency (Hz) to be output from the inverter to the motor.
Encoder resolution High-speed
(pulses/revolution) counter multiplier
Power supply frequency to motor
for one revolution per second (See note 1.)
(1) Calculate the power supply frequency for one revolution per second from
the motor specifications. For example, with a 1,800-r/min (60-Hz) motor
(30 r/s), the power supply frequency for one revolution per second would
be calculated as follows: 60 [Hz] ÷ 30 [r/s] = 2 [Hz].
Description
Lower 4 When a present value is read, the following
digits data is stored in D and D+1 as an 8-digit hexa-
decimal value.
digits P = #0020/#0021: The actual movement from
the internal pulse origin.
P = #0030/#0031: The present value of the
error counter.
Bit 0 Operation Command Flag
ON: Operation command in progress
OFF: Stopped
Bit 1 Forward Command Flag
ON: Forward command in progress
OFF: Reverse command in progress or
stopped
Bit 2 Reverse Command Flag
ON: Reverse command in progress
OFF: Forward command in progress or
stopped
Bit 3 In-position Flag
ON: In position
OFF: Not in position
Bit 4 Error Counter Error Flag
ON: Error occurred in error counter
OFF: No error
Bit 5 Internal Pulse Output Flag
ON: Pulses being output
OFF: Pulse output stopped
Bit 6 Internal Pulse Acceleration/Deceleration Flag
ON: Acceleration/deceleration in progress for
internal pulse output (i.e., frequency being
changed)
OFF: Constant frequency for internal pulse out-
put
Bit 7 Error Counter Alarm Flag
ON: Alarm occurred for error counter
OFF: No alarm
Bit 15 Error Counter Sign Flag
ON: Positive
OFF: Negative
Gear ratio between motor
shaft and encoder shaft
(See note 2.)
Section 7-3
Power supply
frequency to
motor (Hz)
331