Robertshaw 563A User Manual

Sales Manual Section 140

PRODUCT SPECIFICATION MODEL 563A

GENERAL DESCRIPTION

The Robertshaw Model 563A Vibraswitch Electronic
Monitor is a microprocessor based supervisory control
system designed for use with Robertshaw Model 365 or
366 Vibraswitch Malfunction Detectors. It may be used
with one to eight Vibraswitches and has been programmed
to provide a means of differentiating between valid
excessive vibration and excessive vibration resulting from
temporary external disturbances.

Many machines, during their normal operation, will suffer
occasional short-duration transient shocks, which are
external to the monitored machine. Examples of these
disturbances are: Closing of pipeline check valves on
pumping applications; Start-up of additional pumps on a
line; nearby machinery operating - such as hydraulic
presses, etc.. These disturbances may cause a Vibraswitch
to "trip out" if the vibratory level is in excess of its setpoint.
The Model 563A provides field settable Monitor Time
Delay circuitry that eliminates equipment shutdown
because of these transients and ensures that only a
continuous vibration level which exceeds the setpoint of the
Vibraswitch will initiate an alarm and/or shutdown. This
Monitor Time Delay is adjustable, using digital rotary
switches, over a range of 0 to 99 seconds.

Nearly all rotating machinery, during its "start-up"
operation, will go through an excessive vibration point
which is inherent to the machine. This vibration level
sometimes is higher than the alarm/shutdown level desired
for safe protection. The Model 563A contains circuitry
which provides a Starting Time Delay to disable the
Vibraswitches for a period of time to allow the machine to
reach its normal operating speed or condition. After this
delay period, the Model 563A activates the Vibraswitches
to provide the necessary vibration protection. The Start
Time Delay is adjustable over a range of 0 to 999 seconds
by means of digital rotary switches.

Eight LED indicators, viewable through the window on the
instrument door, are provided for visual indication to
determine which Vibraswitch detected the excessive
vibration and triggered the alarm and/or shutdown.

The supply power for the Vibraswitch Electronic Monitor
is available as:

120 VAC
240 VAC
48 VDC
24 VDC

Vibraswitch

Electronic Monitor

Model 563A

FEATURES AND BENEFITS

• Microprocessor Based-

Provides greatest reliability and most accurate
operation.

• Multiple Vibraswitch Sensors­ Monitors from 1 to 8 Vibraswitches.

• AC or DC Supply Power

• NEMA 4 and Explosion-Proof Enclosures

Available

• Field Selectable Timing Periods

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FUNCTIONAL DESCRIPTION

The Model 563A is a microprocessor based instrument that
monitors one to eight Vibraswitches. It monitors the
Vibraswitches to determine the occurrence of excessive
vibration and then integrates this vibration time. If the
duration of the excessive vibration exceeds the preset
limits, an alarm and/or shutdown condition is generated by
a set of relay contacts.

The Start Time Delay circuitry inhibits monitoring from the
time a machine is first started until it reaches its normal
operation speed and condition. This time is adjustable from
0 to 999 seconds by means of three digital rotary switches.
The leftmost switch indicates hundreds of seconds, the
middle switch indicates tens of seconds, and the right
switch indicates individual seconds. When the machine
power monitor voltage (normally supplied by the start
circuit of the machine) is applied to TB-10 and goes from
OFF to ON, the Start Time Delay is initiated. It can also be
initiated by pressing and releasing the Pu shbutton Indicator
on the door of the instrument. This delay is terminated at
the end of the time period specified by the settings of the
Start Time Delay switches. At the end of the Start Time
Delay period, the Model 563A will reset all Vibraswitches
(if required) and commence to monitor them for excessive
vibration.

A Monitor Time Delay period is initiated when any
Vibraswitch trips from excessive vibration. The Monitor
Time Delay period is adjustable from 0 to 99 seconds by
means of two digital rotary switches. If the vibration
continues to the end of this period, the alarm and/or
shutdown contracts will actuate and the red indicator within
the Reset Button on the instrument door will turn ON. The
voltage applied to this indicator will also be applied to
terminals 6 and 7 of TB-9 for an optional remote alarm
indicator. When this condition occurs, an internal LED will
come ON. The operator can determine which Vibraswitch
tripped and cause the alarm and/or shutdown event by
observing these eight LED's.

The Monitor Time is actually an integrated time period.
The period is divided into five (5) sampling segments.
When excessive vibration occurs within a segment, a
counter is incremented one unit. If no excessive vibration
occurs during a sampling segment, the counter is
decremented one unit. The counter is never negative so it is
either decremented or remains at zero count when there is
no excessive vibration. If the counter reaches a count of
five and excessive vibration occurs before it is
decremented, an alarm and/or shutdown condition is
generated.

After an alarm and/or shutdown condition occurs, the
alarmed Vibraswitch will remain tripped until a complete
"restart" is initiated or the Reset Button on the Model 563A
cover is pressed and released, which will cause the reset of
ALL Vibraswitches and the reset of the internal circuitry to
the initial "Start-up" conditions. This action also returns the
alarm/shutdown contacts to their normal state and turns off
the red indicator light and LED.

The Start Time Delay and the Monitor Time Delay setpoint
switches and the eight LED's are visible through the
window on the door so that an observer can determine the
condition of the individual Vibraswitches and the delay
settings.

SPECIFICATIONS

PERFORMANCE

Timing Accuracy .......................................... ±5% @ 68° F

Timing Range:

Start Delay ................................... 0 to 999 Seconds

Monitor Delay ................................ 0 to 99 Seconds

Setting Resolution .................................... 1 Second

ENVIRONMENTAL

Temperature:

Operating ..................................... -40° F to +160° F

(-40° C to +72° C)

Storage ........................................ -55° F to +225° F

(-49° C to +107° C)

Vibration Limits .....................................0.5G 15 to 100 Hz

Relative Humidity ........................................ 95% at 100° F

ELECTRICAL

Supply Voltage:

Model 563A-A ............... 120 VAC ±10%, 50/60 Hz

150 Watts, 167 VA Maximum

Model 563A-B .............. 240 VAC, ±10%, 50/60 Hz

150 Watts, 167 VA Maximum

Model 563A-C ................................. 24 VDC, ±10%

150 Watts Maximum

Model 563A-D ..................................48 VDC, ±10%

150 Watts Maximum

Machine Power Monitor:

Voltage ............................... Same as supply voltage

Amperage ...................................... Less than 20 mA

Alarms/Shutdown Contacts:

Terminals 3, 4 & 5 on TB-9 ................ 5 Amp, 28 VDC Res.,

5 Amp, 120 VAC Res.,

1/6 HP (2.2 Amp), 220-240 VAC

Remote Alarm Indicator:

Terminals 5 & 6 on TB-1 thru TB-8
and terminals 6 & 7 on TB-9

Model 563A-A ........ 120 VAC, 25 Watts Maximum

Model 563A-B ........120 VAC, 25 Watts Maximum,

1/2 wave rectified

Model 563A-C .......... 24 VDC, 25 Watts Maximum

Model 563A-D ........... 48 VDC, 25 Watts Maximum

Remote Reset

Open circuit voltage is 12 Volts Maximum
Short circuit current is 0.1 Amp Maximum

Terminals 1 & 2 TB-9

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