Universal interface (Option)
IMPP[,<impp>] - Set I
mpp
This command adjusts the MPP current for PV
sim
mode. Entering the command without parameters displays the set
value. If the set value is higher than the maximum current of the unit, the range-error-bit within the ESR register of
the interface is set. The present set value remains unchanged. If the set value is higher than the I
limit
value, which was
adjusted by the user’s settings, but lower than the maximum current of the unit, the current is limited to the I
limit
value. No error message follows.
Example:
GTR Remote operation
OVP,200 Over voltage protection
UA,50.5 Open circuit voltage of a 50.5 V simulated PV generator
IA,10 Short circuit current of a simulated 10 A PV generator
UMPP,40.4 MPP voltage of a simulated 40.4 V PV generator
IMPP,8.2 MPP current of a simulated 8.2 A PV generator
MODE,PVSIM Activates PV simulation mode
SB,R Output open
In master/slave mode, the current of a programmed device is adjusted. In parallel connection the total current is n x IA.
LIMI - Limit I
a
With this command the user can read the maximum adjustable current limiting.
Example: 300A unit, I
limit
was adjusted to 200 A via configuration menu
LIMI Query of maximum adjustable current
LIMI,200.0A Unit answers: I
= 200 A
LIMP - Limit P
a
With this command the user can read the unit’s maximum output.
Example: 10 kW unit
LIMP Query of units output
LIMP,10000 Unit answers: 10 kW
LIMR - Limit R
With this command the user can read the adjustable range for R
i
within UIR mode.
Example:
LIMR Query of adjustable internal resistance
LIMR,0.015R,1.00R Unit answers: 15 mOhm up to 1 Ohm
LIMRMAX - Limit R
max
With this command the user can read the maximum adjustable range for R
i
within UIR mode.
Example:
LIMRMAX Query of maximum adjustable internal resistance
LIMRMAX,1.000R Unit answers: 1 Ohm
LIMRMIN - Limit R
min
With this command the user can read the minimum adjustable range for R
i
within UIR mode.
Example:
LIMRMIN Query of minimum adjustable internal resistance
LIMRMIN,0.015R Unit answers: 15 mOhm
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