Matsushita Electric Works, Ltd.
Global Marketing Division
23
UV irradiation is impossible although [ERROR]
is not displayed
When the UV irradiation cannot started by pressing the [EMISSION] key or
inputting an external signal although the panel is not displaying [ERROR],
the [READY] signal is off because the UV irradiation conditions are not met.
Remedy
(1) Ensure that the shorting bar between terminals [11] and [12] is
not detached.
This [EMER] circuit must be normally closed. If the [EMER] signal
is off, an emergency stop is made, and the [READY] signal is
turned off, preventing UV irradiation.
(2) The UV irradiation conditions have not been set for the TYPE number
indicated on the UJ20 display. Set the conditions or switch
the TYPE number to another one for which UV irradiation
conditions have been set.
T
READY
UV
EMER.
START
START
COM
READY
EMER.
Troubleshooting
