62 Operation programming
Keypad lock
Keypad lock can be active in the following states for the prevention of errone-
ous key operation.
Manual mode
EXT mode
NOTE
• Any key operation is not acceptable when the keypad lock is active. In an emergency,
unplug the pump to stop operation. In this case, keypad lock state is recalled when
the pump is turned on.
• Pressing the start/stop key for three seconds, keypad lock becomes active even when
the pump is receiving the STOP signal. Note that "STOP" or "-STOP" indication does
not change but key operation is not accepted. Keypad lock indication appears when
the STOP signal is released with "M-ON" or inputted with "M-OF".
Wait state
During operation
ON
STROKE RATE
ON
STROKE RATE
ON
STROKE RATE
Summary of Contents for EHN-R
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