User Manual - Rev AJ California Instruments
6.5.2 Current Limit Calibration
N is procedure only applies to MX Systems with top assembly P/N 7003-400-1 ote: Th
(Series I). If the MX system is P/N 7003-422, this section can be skipped. To
part l tag on check the model top assembly
the rear on the MX chassis.
number, consult the model and seria
Program the output to 135V, 60Hz on the low range. Program the current limit to IPROG in
Table 6-5 below, set limiting mode to Constant Current (CC).
Apply 105 to 110% of IPROG load to phase A output. Now adjust R195 on the system interface
b t curren ROG (ISET).
When this adjustment is being made the front panel OVERLOAD indicator should be lit.
If system is 3-phase, then proceed to the phas
C output adjust R197.
oard (P/N 7003-700-1) until the outpu t is 103% of IP
e B output and adjust R196 as above. For phase
MODEL IPROG ISET ADJUST
MX30-1 200 R195 206
MX30-1 66 R195, R196, R197 68
MX45-1 300 309 R195
MX45-3 100 , R196, R197 103 R195
MX90 200 97 206 R195, R196, R1
MX135 300 309 R195, R196, R197
Table 6-5: Current Limit Calibration
Repeat this adjustment for the Phase B and Phase C if present.
MX Series 173
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