Gossen Metrawatt GmbH
25
2.9.3
Current Limit in CV Mode
The CV Current Limit is used to limit the maximum input current in CV mode. If the voltage is still larger than the setpoint while the cur-
rent limit has been reached, the load will switch to the CC mode. Please see Figure 2.13.
The input will not be turned off in the CV current limit, which is different from the software current limit.
The CV Current Limit can be set in main menu, or via the remote command ( INPut:LIMit:CURRent <NRf+>).
Figure 2.13 CV Current Limit
2.9.4
Current Rise Rate
The Current Rise Rate is used to set the current rise rate in CC mode. It can be set in main menu, or via the remote command (CUR-
Rent:RISE:RATE <NRf+>). If the current rise rate is 0.1 A/μs, and the current setpoint is 20 A, then the current rise rate is shown as
below when the input is turned on, see Figure 2.14:
Figure 2.14 Current Rise Rate
Note
The Current Rise Rate can be effective only in CCH and CCL, and the actual rise rate is one tenth of the setpoint in CCL.
2.9.5
Current Fall Rate
The Current Fall Rate is used to set the current fall rate in CC mode. It can be set in main menu, or via the remote command
(CURRent:FALL:RATE <NRf+>). If the current fall rate is 0.1 A/μs, and the current setpoint is 20 A, then the current rise rate is shown
as below when the input is turned off, see Figure 2.15:
Figure 2.15 Current Fall Rate
Note
The Current Fall Rate can be effective only in CCH and CCL mode, and the actual rise rate is one tenth of the setpoint in CCL.
I
Ilimit
Vset
V
Input Current
Input V
o
ltage
I (A)
t (μs)
20
10
100
200
300
400
20
10
I (A)
t (μs)
