6.15    E-SX Bus Interface Card 
6-251 
Chap. 6 
CONTROL OPTIONS 
(2) Status display LED      RUN, ERR 
The status of the local station (running/error) is indicated by the RUN/ERR LED on the option board. 
The option determines the status of the local station, which is a slave station, and thus this may differ 
from the RUN/ALM status displayed on the MICREX-SX CPU. 
Table 6.15.2  LED Display 
Status of slave  RUN (green)  ERR (red)
Initial  E-SX bus transmission not received OFF  OFF 
  E-SX bus transmission received  Flashing  OFF 
Normal   ON  OFF 
Option hardware error  OFF  ON Heavy alarm 
 
Master down detected  ON  ON 
Light alarm    ON  ON 
  Local station setting error (does not match master or 
station address outside range) 
  Communication error detected (missed reception 3 
tacts in succession) 
  Other inverter alarm occurred 
 
Inverter power OFF   
(including bypass operation) 
OFF  OFF 
 
Table 6.15.3  Software Specifications 
Item Specifications 
Data update cycle (*1) Minimum 250 s 
Run command  Run forward and reverse commands, alarm reset command, X1 to X14 commands 
Speed/torque 
command 
1-word data 
Bit data of running, braking, torque limiting, alarm relay and other signals 
Oper
ation 
Operation status 
output 
Return speed (1 word), torque output (1 word), current return position (2 words) 
(supported in near future) 
Option function codes  o30, o31, U11 to U13 
Protective functions 
er4
 : Network error (E-SX bus error) (*2) 
*Light alarm: 
er4
 alarm action can be set with o30, o31. 
*Heavy alarm: Immediate 
er4
 alarm. 
arf
 : Toggle error (*3) 
The 2-bit signals sent by the PLC, toggle signal 1 TGL1 and toggle signal 2 
TGL2,    are monitored, and this error occurs if the specified change pattern is 
not received before the time set in H144 elapses. 
are
 : E-SX bus tact synchronization error (*4) 
Occurs when synchronization of the E-SX tact cycle and inverter control cycle is 
lost due to noise or other factors. 
 
*1  The data update cycle depends on the carrier frequency setting, E-SX bus tact cycle of the MICREX-SX, and 
task cycle of the application program. 
*2  For light and heavy alarms, refer to "6.15.6 Protective
 operations". 
*3  For details on toggle signals and toggle errors, refer to "TGL1" and "TGL2" in the explanation of E01 to E13 in 
Chapter 4, Section 4.3 "Details of Function Codes." The toggle pattern for ON/OFF of TGL1 and TGL2 must 
be created in the MICREX-SX program. 
*4  For E-SX bus tact synchronization errors (
are
 ), refer to Section 6.15.10 "Synchronization of E-SX bus tact 
cycle and inverter control cycle
." 
RUN
ERR