RKC INSTRUMENT MA901 General Description Manual

MA901
General Description
The MA901 controls up to 8 channels in a compact 1/4 DIN size. The MA901 increases zone density and makes smaller numbers of loops
affordable, yet still holds many of the advantages that a single loop controller might offer. This unit will aid designers of control equipment saving
labor costs, installation costs, electric panel sizes, and operation costs.
Features
8 channels of control
Multi-memory area
Digital communications
Digital contact input
Multiple alarm functions
Close horizontal mounting
IP65 Waterproof/Dustproof protection
8 channels Control
8 channels of temperature controls are packed into 96 x 96 x
100mm case. The MA901 can reduce your panel cutouts and
make your panel board smaller.
PV
SV
AT OUT1 OUT2 ALM1 ALM2
SET R/S
CB900
PV
SV
AT OUT1 OUT2 ALM1 ALM2
SET R/S
CB900
PV
SV
AT OUT1 OUT2 ALM1 ALM2
SET R/S
CB900
PV
SV
AT OUT1 OUT2 ALM1 ALM2
SET R/S
CB900
Multi-Memory Area
Up to 8 kinds of combinations of temperature set value, PID
constant, alarm set value etc for each channel can be
registered as "memory area" (recipe).
The change of settings caused by the change of a process and
product can be simply realized only by switching the "area". The
switching of the area by optional external contact input is also
available.
The available parameters for multi memory area :
SV, Alarm set values, PID constants, Anti-reset windup,
Overlap/dead band, Setting change rate limiter, Channel
used/unused
Area 1
P, I, D, AL1
etc..
MA901_03E
Multi-Loop Digital Temperature Controller
PV
SV
AT OUT1 OUT2 ALM1 ALM2
SET R/S
CB900
PV
CH P V
SV
AT OUT1 OUT2 ALM1 ALM2
AREA
S V SET R/S
CB900
OUT1 OUT2 OUT3 OUT4 OUT5 OUT6 OUT7 OUT8
PV
T A L A 1 M L A 2 M L A 3 M
SV
CH SET R/S
AT OUT1 OUT2 ALM1 ALM2
MA900 SET R/S
CB900
PV
SV
AT OUT1 OUT2 ALM1 ALM2
SET R/S
CB900
8 areas
Area 3
Select
P, I, D, AL1
etc..
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Digital Communications
An optional communications interface, RS-232C or RS-422A,
RS-485 is available for networking to computers, PLCs and
SCADA software. MODBUS or ANSI (RKC standard) protocol
can be selected. Up to 31 units can be interfaced on one RS-
422A or RS-485 communication line.
CH
AREA
OUT1 OUT2
T A
CH
SET
MA900
Digital Contact Input
An optional digital contact input is available for RUN/STOP and
memory area switching. (RUN/STOP switching can also be
completed at the front key panel.)
Multiple Alarm Functions
The MA901 provides a wide selection of alarm types to
configure up to three alarms.
Alarm 1 (Standard) :
Temperature alarms, Loop break alarm, FAIL
Alarm 2 (Optional) :
Temperature alarms, Heater break alarm, FAIL
Alarm 3 (Optional) :
Temperature alarms, FAIL
•Alarm output is common to all channels.
K
R C
(800) 576 - 6308
Inc,
MA901
P V
S V
OUT3 OUT4 OUT5 OUT6 OUT7 OUT8
L A 1 M L A 2 M L A 3 M
R/S
Host computer
CH P V
AREA
S V
OUT1 OUT2 OUT3
T A
CH SET
MA900
PLC
R
R
(Optional)
(Optional)
OUT4 OUT5 OUT6 OUT7 OUT8
L A 1 M L A 2 M L A 3 M
R/S
1