User's Manual
MS3705HB Slim Plug-In Digital Alarm Setter with Isolated Dual Output (High Accuracy Model)
Rev. 1.50
4
10. Mounting / Demounting
Mounting the Socket on a DIN rail
Demounting the Socket
Main Unit Installation / Removal
Fixing Screw
I/O Pins
Installation
(1) Identify the top and the bottom of the unit and insert the I/O pins
straight into the corresponding pin slots (receptacles) on the
socket.
(2) Tighten the fixing screw to fix the unit firmly in position.
Removal
(1) Loosen the fixing screw.
(2) Pull out the unit carefully not to bend the I/O pins.
11. Settings
11-1 Trip Point Setting
Setting for OUT-1:
Set the OUT-1/2 Selector Switch to the RY1 position, and the Relay
Trip Point Indicator will show the current trip point value for OUT-1.
You can use the UP or DOWN Switch to change the value.
Setting for OUT-2:
Set the OUT-1/2 Selector Switch to the RY2 position, and the Relay
Trip Point Indicator will show the current value for OUT-2. You can
similarly change the value.
Note: If no switch is operated for one minute, the indicators will
automatically turn off. To turn the unlit indicators back on,
press the UP or DOWN switch or move the OUT-1/2 Selector
Switch to the opposite position. The Relay Trip Point Indicator
and CPU Status Indicator will blink as shown in the table (#1)
in section 12, and then the former indicator will show the
current value.
11-2 Mode Setting
Turn on the power while holding down the DOWN Switch. After the
CPU Status Indicator LED starts blinking, release the DOWN Switch.
The Relay Trip Point Indicator will show the current relay activation
mode for the output you have selected with the OUT-1/2 Selector
Switch, i.e., OUT-1 when the it is in the RY1 position and OUT-2
when in the RY2 position. You can use the UP or DOWN Switch to
change the mode, referring to the table below. To make your
change take effect, move the OUT-1/2 Selector Switch to the
opposite position to where it is located. This enables the instrument
to save the setting. After completing the setting, cycle the power to
start operation in the mode you have selected.
Mode Output
0
Upper limit alarm; relay activated when alarmed.
1
Upper limit alarm; relay deactivated when alarmed.
2
Lower limit alarm; relay activated when alarmed.
3
Lower limit alarm; relay deactivated when alarmed.
11-3 Hysteresis Setting
Turn on the power while holding down the UP Switch. After the CPU
Status Indicator LED starts blinking, release the UP Switch. The
Relay Trip Point Indicator will show the current hysteresis value for
the output you have selected with the OUT-1/2 Selector Switch, i.e.,
OUT-1 when the it is in the RY1 position and OUT-2 when in the
RY2 position. You can use the UP or DOWN Switch to change the
hysteresis value. To make your change take effect, move the
OUT-1/2 Selector Switch to the opposite position to where it is
located. This enables the instrument to save the setting. After
completing the setting, cycle the power to start operation based on
the hysteresis you have set.
Notes:
1. The UP/DOWN switch is of a push button type. Pressing and
holding the switch changes the value faster.
2. Unless otherwise requested, the relay operation will be set to the
factory default settings shown in the table below.
Output Trip
Point Mode Hysteresis
OUT-1 50%
0 1.0%
OUT-2 50%
2 1.0%
Hold the socket with the slide
clamp facing down. Hook the upper
edge of the cavity in the rear of the
socket over the upper blade of the
rail (
①
), then push the lower part of
the socket against the lower blade
of the rail so as to make the slide
clamp engaged firmly with the rail
(
②
).
Push the slide clamp downward with
a flat-head screwdriver bit or the like
(
①
), and pull the lower part of the
socket toward you (
②
).