Mitsubishi Electric fr-e700 series, Instruction Manual

Page: 576 / 608

Measurements on the main circuit Maintenance and inspection
8 - 14
햲
When the setting of Pr. 192 "ABC terminal function selection" is positive logic.
Item Measuring Point
Measuring
Instrument
Remarks (Reference Measurement Value)
Frequency
setting signal Across 2 (positive)
and 5 Moving-coil type
(Tester and such
may be used)
(Internal resistance:
50k or larger) 0 to 10 V DC, 4 to 20 mA "5" is
common
Across 4 (positive)
and 5
Frequency
setting power
supply Across 10 (positive)
and 5 5.2 V DC
Frequency
meter signal Across AM (positive)
and 5 Approximately 10 V DC at maximum
frequency (without frequency meter)
Start signal
Select signal Across STF, STR, RH,
RM, RL and PC (posi-
tive) When open: 20 to 30 V DC
ON voltage: 1 V or less
"PC" is
common
Reset Across RES and PC
(positive)
Fault signal Across A-C
and B-C Moving-coil type
(such as tester)
Electric Continuity check
햲
Normal Fault
Across A-C Discontinuity Continuity
Across B-C Continuity Discontinuity
Tab. 8-6: Measuring points and instruments of the control circuit