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POWER SUPPLY
BOARD
OUTPUT BOARD
CPU BOARD + POWER
SUPPLY BOARD
LEVEL 1 DISPLAY
P.V.
Process variable
Alarm Setpoint Output 1
Alarm Setpoint Output 2
Alarm Setpoint Output 3
(*) For deviation alarms the setpoint range is -999 ... 999
If the Inc, Dec, F keys are not pressed within 15 sec.,
the display returns to the P.V. value
81661G_MHW_40A48-96_09-2016_ENG
Device structure: identification of boards
DISPLAY BOARD
CPU BOARD
DISPLAY BOARD
5 • PROGRAMMING and CONFIGURATION
Pressed for
F
approx. 2 sec.
I F
C F
(*)
I n
(*)
O u
S5
S6
B
A
POWER SUPPLY BOARD
S5
CPU BOARD
A
B
S1
CPU BOARD + POWER
SUPPLY BOARD
OUTPUT BOARD
S1
B
A
B
S2
A
S3
B
A
PA = 99
Information display
Hysteresis parameters
Input settings
Output settings
S5 = Status of Out 1 relay
S6 = Status of Out 2 relay
A = Direct
B = Inverse
S1 = Status of Out 3 relay
A = Direct
B = Inverse
S5 = ON with digital input
S1 = Status of Out 1 relay
S2 = Status of Out 2 relay
S3 = Status of Out 3 relay
A = Direct
B = Inverse
P A
Password
NO
YES
P r
Protection code
U.C.
User calibration
Keep the F key
pressed to browse
the menus.
Release the F
key to enter the
displayed menu.
Press the F key
to access the
parameters.
Keep the F key
pressed to exit any
menu at any time.
3
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