Key Lock Function; Remote Alarm Terminal - Panasonic MDF-U334 Series Operating Instructions Manual

KEY LOCK FUNCTION

This unit is provided with the key lock function. When the key lock is ON, change of temperature setting
through the key pad is not available. The key lock is set in OFF at the factory.
Display
L 0
L 1
Table 2 Procedure for key lock setting (change from key lock OFF to key lock ON)
Description of operation
1
2 Press digit shift key for 5 seconds.
Press numerical value shift key and
3
scroll the figure to 1.
4 Press set key.
The key lock only works with the chamber temperature setting and the defrost key (DEF).

REMOTE ALARM TERMINAL

WARNING
Always disconnect the power supply cord before connecting an alarm device to the remote alarm
terminal.
The terminal of the remote alarm is installed at the upper side of the unit. The alarm is outputted from
this terminal. Contact capacity is DC 30 V, 2 A.
Contact output:
At normal
At abnormal
Note:
The buzzer is silenced by pressing buzzer stop key (BUZZER) on the control panel during alarm
condition. (A remote alarm is continuing the operation.)
The buzzer will be activated again after certain suspension if the alarm condition is continued.
The alarm is actuated when the power supply plug is disconnected from the outlet or the power switch is
OFF.
Mode
Key lock is OFF
Key lock is ON
between COM. and N.O.
Open
Close
Use a twisted sealed wire for the connection.
Type UL2343, UL2448, UL2464, UL2552, UL 2623
Length: thirty meter max.
Function
Enable to change of temperature setting
Disable to change of temperature setting
Key
operated
The current chamber temperature is
----
displayed.
The right digit is flashed.
When pressed, the figure of settable
digit increases.
The key lock is set to ON.
SET The current chamber temperature is
displayed.
between COM. and N.C.
Close
Open
14
Indication after operation