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9.07 “scale data error” Trouble Shooting Procedure
The “scale data error” message indicates a communications problem between the
Tecweigh
WP20 and the scale’s signal conditioner (SC). The following is a list of processors and SC’s that
apply.
Processors:
MP400, MP300, MP200, WP20-02B, WP20-02A, WP20-02.
Signal conditioners:
SC400 (lvdt’s), SC300 (load cells), SC200 (lvdt’s), SC100 (load cells), ET20-04B (lvdt’s),
ET20-04A (lvdt’s), ET20-04 (lvdt’s), ET20-07 (load cells).
If a lightening strike is a possibility, first visually inspect both the WP20 and SC printed circuit
boards (PCB) for physical damage. If damage is evident,
both
boards should be returned to
Tecweigh
for servicing. Contact the
Tecweigh
Service or Parts Departments (Section 2.01) for
further instructions.
If no physical damage is evident, the next step is to check several DC voltages at terminals on
the PCBs. First disconnect from the
WP20 PCB
the four wires (or the plug-in connector) that
connect the WP20 to the SC. Next, measure the voltages between the following terminals on the
WP20 PCB. The indicated voltages are what should be present at the terminals. Terminal 10
(CM) is common (-).
10 to 20 ------------------------------ 2.4 +/- 0.2 vdc.
10 to 22 ------------------------------ 2.4 +/- 0.2 vdc
10 to 29 (MP400 ac version) ------30.0 vdc
10 to 29 (MP400 dc version) ------28.0 vdc
10 to 29 (older PCBs) ---------------24.5 vdc
If the voltages are not correct, the WP20 PCB is defective. If this occurs,
both
the WP20 and SC
PCBs should be returned to
Tecweigh
for servicing. Contact the
Tecweigh
Service or Parts
Departments (Section 2.01) for further instructions.
If the voltages are correct, reconnect the four wires (or the plug-in connector) at the WP20 PCB
and disconnect the same four wires (or plug-in connector)
from the
SC PCB. Now measure the
LVDT
Clamp
Bolts
LVDT
Wiring
Clamp
Screw
Possible
Pitting
LVDT
Spring
Center
Plunger
Содержание Tecweigh 20
Страница 2: ... 1 ...
Страница 10: ... 9 2 09 I O Quick Reference Guide ...
Страница 20: ... 19 ...
Страница 24: ... 23 4 03 WY15 and WY25 Scale Wiring load cells ...
Страница 25: ... 24 4 04 HY15 and HY25 Field Wiring ...
Страница 26: ... 25 4 05 WY10 WY10HD and WY20 Scale Wiring LVDTs ...
Страница 27: ... 26 4 06 Chart Recorder Data Logger using the 4 20 ma output ...
Страница 28: ... 27 4 07 Chart Recorder Data Logger using the HFR output ...
Страница 29: ... 28 4 08 Remote Rate Total Display 4 09 Remote Tons Counter ...
Страница 30: ... 29 4 10 Radio Transceivers Local Scale Remote Processor ...
Страница 31: ... 30 4 11 Radio Transceivers Local Processor Remote PLC PC or Remote Display ...
Страница 32: ... 31 4 12 Radio Transceivers Local DC Generator Remote Processor ...
Страница 33: ... 32 4 13 Radio Transceivers Local DC Generator and Processor ...
Страница 34: ... 33 4 14 Multiple Processors to Tecweigh Multi Scale Display MSD ...
Страница 35: ... 34 4 15 Interposing Relay External 120 vac Power 4 16 Interposing Relay Internal 30 vdc Power ...
Страница 61: ... 60 SC300 PCB WY15 and WY25 SC400 PCB WY10 and WY20 ...
Страница 71: ... 70 10 01 WY10 Dimensions CHAPTER 10 DIMENSIONS ...
Страница 72: ... 71 10 02 WY10 HD Heavy Duty Dimensions ...
Страница 73: ... 72 10 03 WY15 Dimensions ...
Страница 74: ... 73 10 04 WY20 Dimensions ...
Страница 75: ... 74 10 05 WY25 Dimensions ...
Страница 76: ... 75 10 06 HY15 and 25 Dimensions ...