TDK-Lambda GENESYS 10KW - Multi-Power Supply Serial Connection; Communication Interface Protocol Overview

83
-
530
-
000 Rev
G
52
NOTE
The address (ADR n) command must
return an “OK” r
e
sponse
before any other commands are accepted.
Multi power supply co
n
nection to RS232 or RS485 bus
Up to 31 units can be
connected to RS232 or RS485 bus. The first unit connects to the controller via
RS232 or RS485 and the other units are connected with RS485 bus.
1. First unit connection: Refer to Section 7.4.1 for connecting the first unit to the controller.
2. Other u
nits connection: The other units on the bus are connected via their RS485 interface.
Refer to Figure 7
-
5 for typical connection.
-
Set rear panel setup switch SW1
-
6 to its UP position.
-
Using the Linking cable (refer to Fig. 7
-
6), connect e
ach unit OUT conne
c
tor to the next unit IN
connector.
7.5 COMMUNICATION INTERFACE PROTOCOL
IN
OUT
POWER SUPPLY
#1
IN
OUT
POWER SUPPLY
#2
IN
OUT
POWER SUPPLY
#3
IN
OUT
POWER SUPPLY
#31
RS232/RS485
RS485
RS485
RS485
Fig7-5: Multiple power supply RS232/485 connection
8
1
1
8
1
6
3
5
4
1
6
3
5
4
PIN NO.
HOUSING
HOUSING
PIN NO.
NAME
NAME
SHIELD
SG
TXD
TXD
RXD
RXD
SHIELD
SG
RXD
RXD
TXD
TXD
-
+
+
+
+
-
-
-
Serial link cable with RJ-45 shielded connectors (P/N: GEN/RJ-45)
Fig.7-6:
L=0.5m typ.