27PM
5-2-55, Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN
Phone: +81(6)6659-8201 Fax: +81(6)6659-8510 E-mail: [email protected]
EM-7657-A Rev.2 P. 3 / 3
FUNCTION MONITOR LED (option /M)
■
FUNCTION MONITOR LED
3
2
4
1
–
+
Function
Monitor LED
■
INPUT MONITOR:
The input 0 – 100% is converted into a combination of 1-second (1 unit) and 0.25-second (0.2 unit) cycled
pulses. 1 unit corresponds to 25%, while 0.2 unit corresponds to 5%. 0% equals to 1 unit, while 100% cor-
responds to 5 units. The input % is represented in the total number of 1-unit pulses and 0.2-unit pulses,
repeated in the sequence of ‘1-unit pulses ––> 0.2-unit pulses ––> OFF for 1 second or more.’
[Examples]
25% = 2 units
30% = 2.2 units
45% = 2.8 units
50% = 3 units
100% = 5 units
0% = 1 unit
≥
1 second
1 UNIT
25%
ON OFF
1 sec.
0.2 UNIT
5%
0.25 sec.
■
ERROR MONITOR:
Indicates the transmitter’s error status.
Lower overrange
: The input signal is lower than the out-
put’s lower range limit.
2 sec. cycle
0.125 sec. OFF
Upper overrange
: The input signal is higher than the out-
put’s upper range limit.
0.125 sec. OFF - ON - OFF
2 sec. cycle
Burnout
: Sensor wire breakdown is detected.
0.125 sec. ON - OFF
Internal error
: The CPU detects an internal error.
0.125 sec. ON - OFF - ON
1 sec. cycle
