YOKOGAWA UV700G, User Manual

Page: 90 / 131

<7. External Input and Output>
7-3
IM 12K01B02-01E
7.3 Contact Input and Output
7.3.1 Contact Output
This unit incorporates the contact output as shown below.
The contact point output contains 6 outputs, and 4 outputs can be set arbitrarily apart from
POWER OFF and MAINTENANCE.
Item Output No. Description Output timing
TOTAL ALARM Arbitrary setting Indicates various alarm
except POWER OFF.
ON when 1 or more alarms except POWER OFF, MAINTENANCE,
and NO SAMPLE have been triggered. (short circuit)
OFF when all alarms are stopped except POWER OFF ,
MAINTENANCE, and NO SAMPLE. (open)
ANALYZE ERR. Arbitrary setting Indicatesan analyzer
malfunction.
ON when an analyzer has malfunctioned. (short circuit)
OFF when all the analyzer malfunctions are canceled. (open)
LAMP ERR. Arbitrary setting Indicates a UV lamp
malfunction.
ON when the light intensity of the UV lamp is less than the specified
value. (short circuit)
OFF when the light intensity of UV lamp is over the specified value.
(open)
MOTOR ERR. Arbitrary setting Indicates a wiper motor
malfunction.
ON when motor rotation is abnormal (short circuit)
OFF when motor rotation is normal. (open)
NO SAMPLE Arbitrary setting Indicates there is no
sample.
ON when the water level of the overflow tank has decreased and float
switch is activated for 5 seconds continuously. (short circuit)
OFF when the water level of overflow tank has increased and float
switch is canceled for 5 seconds continuously. (open)
MAX COD Arbitrary setting Indicates the upper
alarm limit for COD.
ON when the status "COD measurement value > COD MAX
ALARM VALUE" continues longer than the specified alarm time.
(short circuit)
OFF when the status "COD measurement value < COD MAX
ALARM VALUE" continues longer than the specified alarm time.
(open)
MIN COD Arbitrary setting Indicates the lower
alarm limit for COD.
ON when the status "COD measurement value < COD MIN ALARM
VALUE" continues longer than the specified alarm time. (short
circuit)
OFF when the status "COD measurement value > COD MIN ALARM
VALUE" continues longer than the specified alarm time. (open)
MAX TURB Arbitrary setting Indicates the upper
alarm limit for TURB.
ON when the status "TURB measurement value > TURB MAX
ALARM VALUE" continues longer than the specified alarm time.
(short circuit)
OFF when the status "TURB measurement value < TURB MAX
ALARM VALUE" continues longer than the specified alarm time.
(open)
MIN TURB Arbitrary setting Indicates the lower
alarm limit for TURB.
ON when the status "TURB measurement value < TURB MIN
ALARM VALUE" continues longer than the specified alarm time.
(short circuit)
OFF when the status "TURB measurement value > TURB MIN
ALARM VALUE" continues longer than the specified alarm time.
(open)
WARM-UP Arbitrary setting Indicates the unit is
warning up.
ON for 1 hour after turning the power ON. (short circuit)
OFF after 1 hour has passed since turning the power ON. (open)
POWER OFF O-5 (fixed) Indicates power OFF. ON when the power is turned OFF. (short circuit)
OFF when power OFF is canceled. (open)
MAINTENANCE O-6 (fixed) Indicates the unit is
in maintenance, or
calibration mode.
ON during maintenance mode or calibration mode, or when the
maintenance switch is ON. (short circuit)
OFF when not in-maintenance mode or calibration mode, or when the
maintenance switch is OFF. (open)