Tweco 300 XT Auto-Cut 380V - Manual (Page 91)

AUTO-CUT 300 XT
Manual 0-5261 APPENDIX A-9
APPENDIX 2: SERIAL COMMUNICATIONS
A2.01 CABLES AND SWITCH SETTINGS FOR 2 AND 4 WIRE
The CCM communicates with the TSC 3000 (touch screen HMI panel) using RS 485 (2 wire, half duplex). When
a CNC controller is used in place of the TSC the CCM can be reconfigured for RS 422 (4 wire, half duplex) if sup-
ported by the CNC. RS 422 is normally full duplex but the CCM only supports half duplex. RS 232 is not directly
supported. Converters are available from various sources to convert RS 232 to RS 485/422. When possible, the 4
wire configurationisIt is recommended to use the 4 wire configuration when possible for easier troubleshooting. The
serial communication port of the CCM is provided with 3KV isolation from the rest of the plasma supply circuitry.
RS 485 wiring (2 wire, half duplex)
Art # A-09481
CCM Module
JUMPER
for 2 WIRE
(RS485 only)
use Data +,
Data -, Gnd.
2W
4W
J14
SW14
SW14 - LINE
TERMINATION
normally on
(refer to manual)
KEY PLUG
PLASMA ENABLE
TSC 3000
J54
1
2
3
4
5
6
7
8
9
10
11
12
13
14
REMOTE TSC to CCM CABLE (V):
(OR / W)
(W / BL)
J61
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
(BK)
(R)
(W)
(GN)
(OR)
Data-
Data+
The multicolor wires are twisted pairs.
CCM to TSC 3000 is RS 485 - 2 wire.
OR / W = Orange wire with White stripe
(W / OR)
(W / GN)
(GN / W)
(BL / W)
RS 422 wiring (4 wire, half duplex) (also called RS 485 4 wire)
Ar
t # A-09482_AB
4W
JUMPER for 4 WIRE
use TX+, TX-,
RX+, RX-
2W
(W / GN) #14
Normally open (NO) PLASMA ENABLE (close to enable)
jumper #1 to #3, connect SW to #5 & #6.
Normally closed (NC) PLASMA ENABLE (open to enable)
connect SW to #1 & #3 in place of the jumper.
No jumper required.
(W / OR) #12
SHIELD 1
#1
SHIELD 2
SW14
SW14 - LINE
TERMINATION
normally on
(refer to manual)
CCM Module
J54
1
2
3
4
5
6
7
8
9
10
11
12
13
14
COMMUNICATIONS &
CONTROL CABLE (W)
CNC to CCM
Rx+
Rx-
(W / BL) #9
(OR / W) #8
Tx-
Tx+
PLASMA ENABLE NC
(open SW to enable)
#3
J14
Connect both shields to earth ground
at the CNC end of cable.
OR / W = Orange wire
with White stripe.
PLASMA ENABLE NO
(used with jumper)
to CNC Rx+
(OR) #5
to CNC Rx-
(BL / W) #10
to CNC Tx-
#6 (GN)
to CNC Tx+
GN / W) #13
The multicolor wires are twisted pairs.
Signal Gnd
KEY PLUG
(W) #1
(R) #2
(BK) #3
Recommend using the 4 wire when possible as it is easier to troubleshoot if there is a problem. Note that CCM Tx+
connects to CNC Rx+ and CCM TX- connects to CNC RX- for 4 wire half duplex. If using 2 wire RS 485 connect
CCM Tx+ (also called D+ or Data +) to CNC Tx+ and CCM Tx- (also called D- or Data- ) to CNC Tx-. The Rx wires
are not used for 2 wire.
Line termination:
RS 485 and RS 422 are both “multi-drop protocols, that is there can be multiple devices on the same line. We do
not currently support more than one CCM. Until we do line termination should always be ON.