TDK-Lambda Genesys User Manual page 71

2. Setting up the Slave Units
Two-Wire method
1. The Output Voltage of the Slave units should be programmed 2-5%
higher than the Output Voltage of the Master unit to prevent interference
with the Master unit's control. The Output Current setting of each Slave
unit is programmed by the Master unit to the desired load current divided
by the number of parallel units.
2. Set the rear panel setup switch SW1-2 to the UP position.
3. Set SW1-3 of the Slave unit(s) to the same setting as SW1-4 of the
Master unit (both units should be either 5V or 10V Remote Analog
programming).
4. Connect a wire jumper between J1-8 (LOC/REM) and J1-12 (COM)
(refer to Table 4-4)
5. Connect J1-10 (IPGM) of the Slave unit to J1-25 (P) of the Master Unit.
6. Connect J1-23 (IPGM_RTN) of the Slave unit to J1-12 (COM) of the
Master unit.
Single-Wire Method
1. The Output Voltage of the Slave units should be programmed 2-5%
higher than the Output Voltage of the Master unit to prevent interference
with the Master unit's control. The Output Current setting of each Slave
unit is programmed by the Master unit to the desired load current divided
by the number of parallel units.
2. Set the rear panel setup switch SW1-2 to the UP position.
3. Set SW1-3 of the Slave unit(s) to the same setting as SW1-4 of the
Master unit (both units should be either 5V or 10V Remote Analog
programming).
4. Connect a wire jumper between J1-8 (LOC/REM) and J1-12 (COM)
(refer to Table 4-4).
5. Connect J1-10 (IPGM) of the Slave unit to J1-25 (P) of the Master unit.
During operation, the Slave units operate as a controlled current source,
following the Master Output Current. It is recommended that the power
system be designed so that each unit supplies up to 95% of its current
rating because of the imbalance which may be caused by cabling and
connection voltage drops.
Failure to set the Slave unit voltage setting high enough will cause the
Slave unit to go into Constant Voltage (CV) mode. When this
happens, current will no longer be equally shared between the
WARNING
paralleled power supplies.
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