Global S-8500, Operating Manual, Page: 51 / 74

Global Power Technologies 45
S-8500
Display Parameters
The High Power Limiter has the ability to display 5 different parameters:
1. Output Voltage L1 (OV)
2. VSR1 Set Point (VSR1 Voltage) L2 (VSR1)
3. VSR2 Set Point (VSR2 Voltage) L3 (VSR2)
4. Power Unit Output Power (PU Output Power) L4 (OP)
5. Power Unit Output Current (PU Output Current) L5 (OC)
To view any of these parameters follow the steps below:
1. Connect a DC vol/- leads to M1(+) / M2(-) measurement points respectively.
Ensure voltmeter is in the correct range and has better than 1% accuracy.
2. Press switch S3 (DIS) to cycle through display options, until the LED for the required
parameter is illuminated.
Output Voltage Adjustment
Adjustment of the output voltage should not be attempted until the TEG is set up and
operating normally according to the TEG Operating Instructions.
1. Ensure the Customer Load circuit breaker is in the “OFF” position
2. Check all electrical connections
3. Connect a DC vol/- leads to M1 (+)/ M2 (-) measurement points respectively.
4. Press switch S4 (ADJ) until L1 (OV) LED is Illuminated and flashing
5. Press switch S1 (DN) to decrease setting and switch S2 (UP) to increase setting in steps
of 0.05 V, as needed to the required voltage (reminder, e.g., a 27 Volt output voltage will
read as 2.7 V on the multimeter)
6. If setup is complete, turn the Customer Load circuit breaker to the “ON” position
CAUTION
: Be aware the High Power Limiter input and output voltage will follow
operator’s adjustment operation, and will change accordingly during adjustment
Setting Voltage Sensing Relays
The High Power Limiter is equipped with two standard VSRs. The VSR will Energize and
the LED illuminate when the voltage rises above a user selectable voltage (L7 for VSR1 and
L8 for VSR2). Each Relay provides a normally open, and a normally closed contact. See
Figure 23 In order to change the VSR voltage set point.
1. Connect a DC vol/- leads to M1 (+)/ M2 (-) measurement points respectively.
2. Press switch S4 (ADJ) until the L2 (VSR1) or L3 (VSR2) LED is Illuminated and flashing.
3. Press switch S1 (DN) to decrease setting and switch S2 UP to increase setting in steps
of 0.1 V, as needed to the required voltage (reminder, e.g., a 27 Volt output voltage will
read as 2.7 V on the multimeter).
CAUTION: Be aware the VSR relays might energize or de-energize with adjustment.