TDK-Lambda HWS 3000G - Page 35

INSTRUCTION MANUAL
HWS 3000G
TDK-Lambda
<Page>
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6-9-3. Backup power source (1+1 redundant operation)
・Adjust the output voltage higher by the value of forward voltage drop (VF) of the diode.
*Output voltage and output power should be used within specifications.
・Use blocking diode to prevent reverse current. Diode current rating must be more than output load
current.
+S
+L
-L
-S
+V
-V
+S
+L
-L
-S
+V
-V
＋
Load
－
CB AGCB AG
CB AGCB AG
Power
Supply
Power
Supply
Io
Vo+Vf
Vo
Vo+Vf
+S
+L
-L
-S
+V
-V
+S
+L
-L
-S
+V
-V
＋
Load
－
CB AG
CB AG
Power
Supply
Power
Supply
Io
Vo+Vf
Vo
Vo+Vf
6-9-4. Leader-Follower connection
Leader-Follower control allows multiple power supplies to be linked together with one control.
The controlling side is called the "leader machine" and the controlled side is called the "follower machine."
Set each power supply to the leader machine and follower machine, and connect the leader/follower.
Then, use the method of "parallel operation to increase output current" described in 6-9-1.
When connecting a Leader-Follower, it cannot be used in N+1 redundant operation. If the leader
machine stops or malfunctions, the entire system will stop.
For details on setting the leader machine and follower machine, and how to connect the leader-follower,
see section 3-2-1.
◆Leader-Follower control list
<Analog function>
The following controls are possible by applying analog signals to the leader machine after connecting
the leader-follower.
・Remote ON/OFF control
・Output voltage variable by built-in volume or external signal (CV terminal external voltage
applied, CV terminal external current applied)
・Output current variable by external signal (CC terminal external voltage applied, CC terminal
external current applied)
<Pre-configuration>
If you set the following functions to the leader machine via communication in advance, the follower
machines will have the same settings.
*When a leader-follower is connected, settings cannot be changed via communication.
When configuring settings via communication, please configure the settings on the leader machine
before connecting the leader/follower.
・Constant voltage output setting value using built-in volume or communication function
・Constant current output setting value using communication function
・Setting of output rise speed (both current and voltage) using communication function
TOPTOP