Carel µC2 User Manual

59
GG0
N F
G0 G
MCH200TW*
MCH200TP*
MCH200001* +
FCSER00000
RJ12 – Power supply
RS485 24 Vac
G
G0
– + GND
1
2
3
7
8
9
3
5
1
2
4
6
E N G L I S H
µC
2
- +030220731 - rel. 1.2 - 26.10.2007
Connection diagram (remote power supply)
Fig. 7.o.b
Key:
1. alternative: MCH200000*+MCH2004850 (see Fig. 7.o.a);
2. Insert 120 ohm terminal resistor between Tx/Rx+ and Tx/Rx-
for lines longer than 20 m;
3. length max.= 250 m (min. cross-sect. 1,5 mm
2
/AWG16);
4. RS485 twisted pair + shield Rx/Tx+, Rx/Tx-, GND;
5. fuse 250 mA;
6. 24 Vac 3 VA;
7. telephone cable;
8. length max= 40 m;
9. RJ12 power supply.
Installation
To install the remote terminal, no configuration is required on the µC
2
, as the terminal works with any
serial address set for parameter H10. Check, however, that the µC
2
is fitted with the serial interface
FCSER00000 (DIN rail version) or MCH2004850 (panel version). When first switched on the display will
show the firmware version of the µC
2
(Fig. 7.p.a).
After around 4 s the main screen will be displayed, with the symbols that represent the status of the µC
2
(Fig. 7.p.b).
In the event where the RS485 connection is not performed correctly or the controller is off, the terminal
will clear the display and show the message “OFFLINE” (Fig. 7.p.c).
Info mode
Pressing the “Up” + “Down” + “Sel” buttons together for more than 6 seconds displays the “INFO”
screen (Fig. 7.p.d) containing information on the µC
2
system and on the communication.
Pressing the “Prg” button returns to the main screen.
Information displayed (Fig 7.q):
Display row Meaning
1 Terminal firmware version
2 µC
2
firmware version
3 Supervisor address of the µC
2
4 Percentage error rate in the communic. between the term. and µC
2
Tab 7.g
If the RS485 supervisor line is connected via the MCH200TSV0 adapter
and the supervisor is active, the “ ”icon is displayed at the top right; the two circles to the right of
the Rx, Tx fields indicate respectively the request messages sent by the supervisor to the µC
2
with address
H10 (Rx) and the response from the µC
2
(Tx): empty circle = no data sent (data unchanged), full circle =
data sent.
Connection to the supervisor network (MCH200TSV0)
To connect the µC
2
to the remote terminal MC2000TX00 while still maintaining the possibility to connect
to the supervisor network, the serial adapter (optional) MCH200TSV0 must be used, as shown in Fig. 7.m.
Disconnect the telephone connector, open the cover on the 15-way pin strip using a small pair of wire
cutters, and insert the adapter (pin-strip to 4-pin plug), in the direction shown in Fig 7.m (pin 1 on the left
from the side of the triangle). Connect the RS485 network to the converter and set the parameter H10
(serial address) of the µC
2
to the desired value.
Fig. 7.p.a
Fig. 7.p.b
Fig. 7.p.c
Fig. 7.p.d

Carel µC2 Specifications

General

Brand	Carel
Model	µC2
Category	Controller
Language	English