ControlMaster CM10, CM30 and CM50
Universal process controllers,
1
/
8
,
1
/
4
and
1
/
2
DIN
4 Installation
12
IM/CM/S–EN Rev. R
4.4 Jumper Links for Relay Outputs
The factory-set default for relay action is N/O.
4.4.1 Removing the Controller from its Case
The ControlMaster inner assembly must be removed from its
case to access the relay contact jumper links.
Referring to Fig. 4.5:
1. Insert the bezel release tool
A
(supplied) into the front
panel slot
B
below the function keys.
2. Press the bezel release tool
A
fully in and then down
C
until the shoulder on the tool engages with the
notch behind the controller front plate.
3. Pull the bezel release tool
A
to withdraw the inner
assembly from the case
D
.
Note.
If the bezel release tool is mislaid, 2 small flat-
headed screwdrivers (4 mm [0.15 in.]) can be used as
alternative tools, one inserted into the front panel slot and
the second for leverage in the notch on the underside of
the controller front plate. The notch is the only area that
can be used as a leverage point – do not attempt to lever
the front panel from any other area.
Fig. 4.5 Removing the Controller from the Case
A
C
D
B
A