Siemens SAMMS-MV Manual De Usuario
42
4 Troubleshooting
Troubleshooting Guide
Error Condition
Main Cause
Remedy
CPU Fault
Indicates a problem in the
microprocessor or a low voltage
condition.
microprocessor or a low voltage
condition.
Verify voltage between terminals 5 and 6 is more than
10 VAC. If fault persists, call Siemens.
10 VAC. If fault persists, call Siemens.
Ground Fault
Indicates the ground fault current
exceeded the threshold. If ground fault
protection was selected, the ground
fault LED illuminates solidly and the
motor stops. If ground fault warning
was selected, the ground fault LED
flashes and the motor continues to run.
exceeded the threshold. If ground fault
protection was selected, the ground
fault LED illuminates solidly and the
motor stops. If ground fault warning
was selected, the ground fault LED
flashes and the motor continues to run.
The cause of the ground fault should be determined
and removed before using the motor again. F16 on
the HHC displays the ground fault trip current.
and removed before using the motor again. F16 on
the HHC displays the ground fault trip current.
Ready Light not
Illuminated
Illuminated
Usually indicates lack of control power.
1.
2.
3.
Verify the presence of 12 VAC between terminals 5
and 6 of the SAMMS-MV unit.
and 6 of the SAMMS-MV unit.
If control power is not present, check the control
power fuses or the control power transformer and
replace if defective.
power fuses or the control power transformer and
replace if defective.
If control power is present, push the RESET button to
test lights and unit. If the Ready light does not
illuminate, call Siemens.
test lights and unit. If the Ready light does not
illuminate, call Siemens.
Improper Remote
Operation
Operation
Indicates connection or operator error.
1.
2.
3.
Verify the SAMMS-MV unit is in the Auto mode.
Verify 115 VAC input at SAMMS-MV terminals 9, 10,
11, and 12 with reference to 13, and at terminal 7
with reference to 13.
11, and 12 with reference to 13, and at terminal 7
with reference to 13.
If remote operation is intermittent, verify connections
are made in a manner to avoid noise interference.
Refer to Section 2 of this manual for instructions.
are made in a manner to avoid noise interference.
Refer to Section 2 of this manual for instructions.
Improper Alarm
Contact Operation
Contact Operation
Indicates connection error.
Verify 115 VAC at terminals 7 and 8 with reference to
13.
13.
Improper Light
Operation
Operation
Usually indicates programming error.
1.
2.
Perform lamp test by pressing RESET button.
Verify ladder diagram.
Improper Local
Operation
Operation
Operator error.
Verify SAMMS-MV is in Local mode.
Improper Contactor
Operation
Operation
Connection error.
Verify 115 VAC at terminal 7 with reference to 13,
and at output terminals 14, 15, or 16 with reference
to 13 when the motor is started.
and at output terminals 14, 15, or 16 with reference
to 13 when the motor is started.
Cannot Change
HHC Settings
HHC Settings
Usually indicates motor is running.
Change parameters after motor is stopped.
Improper
SAMMS-MV
Operation
SAMMS-MV
Operation
Usually indicates improper grounding
or noise interference.
or noise interference.
Refer to Section 2 of this manual for instructions.