Key Lock - Magnescale LY71 Instruction And Installation Manual

4. Settings
To enable use
Check the following circuit, and then make the necessary wiring connections.
Output circuit
• Output circuit
All output signals are photocoupler outputs (12 V to 24 V 15 mA max.).
To internal circuits
When using the general-purpose output as the reference point output, time until the output signal changes to
High is 200 ms after going past the reference point.
q
OUT A1
w
OUT A2
e
OUT B1
r
OUT B2
t
COM

4-3-9. Key lock

This function can be used to prevent unintended setting changes or misoperation after the counter unit is
installed. For example, when the user differs from the person who installed the counter unit, the keys can be
locked to prevent misoperation in the event the user incorrectly touches the keys.
After making the setting, the only valid key operations are the
Canceling key lock
∗ Once applied, a password must be entered to cancel the key lock.
1
Press .
........ Password entry is required.
2
Press the numeric keys 1, 7, 9 and 3 in that order.
........ Advanced setting operations are enabled.
3
Set key lock to OFF in the advanced settings.
4-14
(E)
Output signal Pins 1 to 4
COM Pin 5
Terminal pin assign
q
(Standby) key and
w e r t
key.
LY71