40
Operation programming
Keypad lock
Keypad lock can be active in the MAN or EXT mode for the prevention of erro-
neous key operation. The "LOCK" indication appears while keypads are locked.
NOTE
Any key operation is not acceptable when the keypads are locked. In an emergency,
unplug the pump to stop operation. Plugging in the pump, keypads are locked again.
■ Keypad lock activation
Press and hold the start/stop key for three seconds.
■ Keypad lock release
Press and hold the start/stop key for three seconds.
Keypad lock is released and key operation becomes acceptable.
1
1
ON
START
STOP
ON
START
STOP
ON
START
STOP
3 sec
ON
START
STOP
3 sec