IDEC FC4A-C10R2 User Manual page 337

Destination Operand D1 (Status Relay)
Three internal relays starting with the operand designated by D1 indicate the status of the PWM instruction. These oper-
ands are for read only.
Operand
D1+0 Pulse output ON
D1+1 Pulse output complete
D1+2 Pulse output overflow
D1+0 Pulse Output ON
The internal relay designated by operand D1+0 remains on while the PWM instruction generates output pulses. When the
start input for the PWM instruction is turned off or when the PWM1 instruction has completed generating a predetermined
number of output pulses, the internal relay designated by operand D1+0 turns off.
D1+1 Pulse Output Complete
The internal relay designated by operand D1+1 turns on when the PWM1 instruction has completed generating a predeter-
mined number of output pulses or when either PWM instruction is stopped to generate output pulses. When the start input
for the PWM instruction is turned on, the internal relay designated by operand D1+1 turns off.
D1+2 Pulse Output Overflow
The internal relay designated by operand D1+2 turns on when the PWM1 instruction has generated more than the prede-
termined number of output pulses. When the start input for the PWM instruction is turned on, the internal relay designated
by operand D1+2 turns off.
Function
0: Pulse output OFF
1: Pulse output ON
0: Pulse output not complete
1: Pulse output complete
0: Overflow not occurred
1: Overflow occurred (PWM1 only)
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