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Service Test is explained under paragraph 6.8; Diagnostics. The following may be used in conjunction with paragraph 6.8 as an
additional aid to its utilization.
Digital Input Test
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6
x x x x x x x x x x x x x x x x
Analog Input Test
Input X = XX%
Digital Output Test
Output # 1 2 3 4 5 6 7 8
State
x x x x x x x x
NOTES:
Press SERVICE TEST key at any time. To exit press CLEAR key.
Press CLEAR key for this. X = 1, 2, 3, 4, 5, 6, 7 and 8 for analog channels from suction transmitter, system transmitter, flow transmitter, low temperature
transmitter, high temperature transmitter, D.C. supply line, line voltage, line current, and power in watts, respectively.
1.0
GENERAL DESCRIPTION
The PTB is a B&G proprietary board designed to
measure total RMS load current and line voltage for
either single or 3 phase systems. This data is entered
into a microcontroller to calculate true power. True
power, amps, and volts are transmitted continuously
to the 70E/70M OIP microprocessor. These values
are then used for staging and/or display.
1.1
SAFETY
The PTB is an electronic board with high voltage. It
carries 3 phase voltage up to 600 volts. Do not touch
it. There are no manual adjustments on board. If it
should become defective, as described elsewhere in
this manual, replace it. Field repair is absolutely not
authorized under any circumstances.
SERVICE TEST OVERVIEW
DISPLAY
POWER TRANSDUCER BOARD (PTB)
APPENDIX E
SERVICE TEST
APPENDIX F
DANGER: Troubleshooting live control panels ex-
poses personnel to hazardous voltages. Electrical
troubleshooting must only be done by a qualified electri-
cian. Turn power off prior to opening control panel door.
Turn power off and confirm it is off with a voltmeter.
Lock-out disconnect/s.
DO NOT:
–
Touch PTB with power on.
–
Move jumpers with power on.
–
Wire with power on.
–
Even think about modifications.
–
Even think about repair.
Failure to follow these instructions will result in seri-
ous personal injury, death, and/or property damage.
STATUS
0's and 1's
% (CHANNELS 1 - 4)
0's and 1's
27
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