WARNING
DANGEROUS VOLTAGES,
capable of causing death or serious
injury, are present on the external terminals and inside the equip-
ment. Use extreme caution and follow all safety rules when han-
dling, testing or adjusting the equipment. However, these internal
voltage levels are no greater than the voltages applied to the exter-
nal terminals.
DANGER! HIGH VOLTAGE
–
This sign warns that the area is connected to a dangerous high voltage, and you
must never touch it.
PERSONNEL SAFETY PRECAUTIONS
The following general rules and other specific warnings throughout the manual must be followed during application,
test or repair of this equipment. Failure to do so will violate standards for safety in the design, manufacture, and intended
use of the product. Qualified personnel should be the only ones who operate and maintain this equipment. Beckwith
Electric Co., Inc. assumes no liability for the customer’s failure to comply with these requirements.
–
This sign means that you should refer to the corresponding section of the operation
manual for important information before proceeding.
Always Ground the Equipment
To avoid possible shock hazard, the chassis must be connected to an electrical ground. When servicing
equipment in a test area, the Protective Earth Terminal must be attached to a separate ground securely
by use of a tool, since it is not grounded by external connectors.
Do NOT operate in an explosive environment
Do not operate this equipment in the presence of flammable or explosive gases or fumes. To do so would
risk a possible fire or explosion.
Keep away from live circuits
Operating personnel must not remove the cover or expose the printed circuit board while power is ap-
plied. In no case may components be replaced with power applied. In some instances, dangerous volt-
ages may exist even when power is disconnected. To avoid electrical shock, always disconnect power and
discharge circuits before working on the unit
.
Exercise care during installation, operation, & maintenance procedures
The equipment described in this manual contains voltages high enough to cause serious injury or death.
Only qualified personnel should install, operate, test, and maintain this equipment. Be sure that all per-
sonnel safety procedures are carefully followed. Exercise due care when operating or servicing alone.
Do not modify equipment
Do not perform any unauthorized modifications on this instrument. Return of the unit to a Beckwith
Electric repair facility is preferred. If authorized modifications are to be attempted, be sure to follow
replacement procedures carefully to assure that safety features are maintained.
Summary of Contents for M-0245C
Page 1: ...Instruction Book M 0245C High Speed Sync Check Relay ...
Page 23: ... 14 M 0245C Instruction Book Figure 6 Component Location B 0207 ...
Page 24: ... 15 Figure 7 Variable Speed Motor Application Component Location B 0264 ...
Page 25: ... 16 M 0245C Instruction Book ...
Page 26: ... 17 Figure 8 Schematic X 0245C ...