Yaskawa MP920 User's Manual Design - Manual (Page 239)

5 Modules
5.3.4 CNTR-01 Counter Module
5-44
The table below shows the LED indicator patterns when an error occurs in the CNTR-01
Module.
„ Pulse Input Connectors
Pulse Input Connector 1
Error Contents
(Detected by Online Self-diagnosis
Function)
LED Indicator
RUN ERR CH1 to CH4
ROM diagnostic error Lit Blinks once Not specified
RAM diagnostic error Lit Blinks twice Not specified
Shared memory diagnostic error Lit Blinks three
times Not specified
CPU built-in timer diagnostic error Lit Blinks four
times Not specified
Timer diagnostic error Lit Blinks five
times Not specified
Illegal general instruction interrupt Unlit Blinks once Not specified
Illegal slot instruction interrupt Unlit Blinks twice Not specified
CPU address error interrupt Unlit Blinks three
times Not specified
DMA address error interrupt Unlit Blinks four
times Not specified
User break interrupt Unlit Blinks five
times Not specified
Trap instruction interrupt Unlit Blinks six
times Not specified
Watchdog timeout error Lit Blinks fif-
teen times Not specified
5-V Differential type pulse input connector
The CN1 connector is used to connect 5-V differential type pulse
input signals to the CNTR-01 Module
Number of channels: 4
CN1