Mitsubishi Electric RD62P2E Application User's Manual page 40

Operation example of the PWM output function
The following figure shows an operation example of the PWM output function.
CH1 PWM output start
command (PWM output) (Y6)
CH1 PWM output cycle time
setting (Un\G256 to Un\G257)
CH1 PWM output ON time
setting 1 (Un\G258 to Un\G259)
PWM output
No. Description
(1) When CH1 PWM output start command (PWM output) (Y6) is turned off and on, the PWM output starts according to the following setting values.
• CH1 PWM output cycle time setting (Un\G256 to Un\G257)
• CH1 PWM output ON time setting 1 (Un\G258 to Un\G259)
• CH1 PWM output ON time setting 2 (Un\G260 to Un\G261)
(2) The PWM output is on while CH1 PWM output start command (PWM output) (Y6) is on.
(3) The following setting values can be changed while the PWM output is on.
• CH1 PWM output cycle time setting (Un\G256 to Un\G257)
• CH1 PWM output ON time setting 1 (Un\G258 to Un\G259)
• CH1 PWM output ON time setting 2 (Un\G260 to Un\G261)
(4) When the following setting values are changed, the changes are applied from the next output.
• CH1 PWM output cycle time setting (Un\G256 to Un\G257)
• CH1 PWM output ON time setting 1 (Un\G258 to Un\G259)
• CH1 PWM output ON time setting 2 (Un\G260 to Un\G261)
(5) When CH1 PWM output start command (PWM output) (Y6) is turned on and off while the PWM output is on, the PWM output stops. The PWM
output is off while CH1 PWM output start command (PWM output) (Y6) is off.
The waveform output from the PWM output point No.1 terminal (EQU1) or PWM output point No.2 terminal
(EQU2) is affected by the output circuit or connected device of the high-speed counter module. Check the
waveform by using a device such as a synchroscope, and set the output waveform.
Precautions for mounting a remote head module
When a high-speed counter module has been mounted with a remote head module, whether to hold or clear the Y signal at a
disconnection of own station can be set with "CPU error output mode setting" in the module parameter. According to this
setting, whether to hold or clear the PWM output can be specified.
Setting methods when the parameter is set with "CPU error output mode setting" are described as follows.
• Enable the station-based block data assurance for cyclic data in the sending side.
• To hold the PWM output at a disconnection, select "Hold" for "CPU error output mode setting" in the module parameter.
• To stop the PWM output at a disconnection, select "Clear" for "CPU error output mode setting" in the module parameter.
This setting is valid in module units. The parameter cannot be set in each channel.
1 FUNCTIONS
38
1.7 PWM Output Function
(1)
ON
OFF
1200
600
(2)
ON
OFF
PWM output ON time setting: 400
PWM output cycle time setting: 1200
(3)
1000
600
(4)
PWM output ON time setting: 600
PWM output cycle time setting: 1000
(5)
PWM output OFF