To Next PageTo Next PageWhy does my DyneSystems DS820F Amplifier LCD display show 'Current OverCmd'?
The applied current command signal has exceeded 110%. The nominal current reference range is 0 to 100%. Commanded currents of 101% are allowed indefinitely, 102% - 109% for approximately 10 seconds, 110% (or greater) are not allowed.
What to do if my DyneSystems DS820F Amplifier LCD display shows 'Coolant P/F fault'?
The dynamometer cooling system pressure (or folw) has dropped below the setpoint of the coolant pressure (or folw) switch (closed = safe to run). Verify the operation of the various components making up the dyno cooling system. Check functionality of coolant pressure (or folw) switch and its connections to TB4-1 and TB4-2. If a pressure (or folw) switch is not installed, a jumper should be installed across these terminals.
How to fix 'SCR OverTemp fault' on my DyneSystems DS820F Amplifier?
The SCR heat sink is too hot. Allow time for the heat sink to cool down. It can also happen if the cooling fan is not running, verify the fan's operation and connections at TB6-1 and TB6-2. Another cause may be a defective or disconnected heat sink temperature switch (NC); verify its operation and connections.
General| Voltage Gain | 32 dB |
|---|---|
| Dimensions | 19" x 3.5" x 16" (483 mm x 89 mm x 406 mm) |
| Weight | 35 lbs (15.9 kg) |
| Frequency Response | 20 Hz - 20 kHz |
| THD | < 0.05% (1 kHz, -1 dB) |
| Power Output | 200W @ 8Ω, 400W @ 4Ω per channel |
| Total Harmonic Distortion | < 0.05% (1 kHz, -1 dB) |
| Input Sensitivity | 1.4 V |
Guidelines for safe operation and handling of electrical rotating equipment.
Procedure for checking equipment upon arrival for completeness and damage.
Process for reporting and handling shipping damage or lost material.
Information on training programs for safe operation and maintenance.
Locating model and serial numbers for identification and support.
Diagram of the Inter-Loc V controller setup with wall mount ECPAU.
Diagram of the Dyn-Loc IV controller setup with wall mount ECPAU.
Diagram for customer-supplied control with 0-10VDC or 0-20mA signal.
Explanation of Reset Required Mode and Automatic Reset Mode.
Table listing compatibility of wall mount PAU models with transformers.
Table listing compatibility of rack mount PAU models with transformers.
Guidance on qualified personnel for PAU installation.
Enclosure specifications and dimensions for wall mount PAU.
Requirements for physically mounting the wall mount PAU.
Instructions for connecting wires to the wall mount PAU terminal blocks.
Detailed diagram of terminal block connections for wall mount PAU.
Overview of the internal components within the wall mount PAU subpanel.
Procedure for starting up the PAU with an Inter-Loc V controller.
Procedure for starting up PAU with Dyn-Loc IV or customer controls.
Enclosure specifications and dimensions for rack mount PAU.
Instructions for securing and mounting the rack mount PAU.
Wiring diagram for 15 Amp rack mount PAU back panel connections.
Wiring diagram for 30 Amp rack mount PAU back panel connections.
Procedure for starting up the rack mount PAU with an Inter-Loc V controller.
Procedure for starting up rack mount PAU with Dyn-Loc IV or customer controls.
Routine maintenance for the wall mount PAU, focusing on air filter cleaning.
Routine maintenance for the rack mount PAU, focusing on air vents and fans.
Adjusting zero and span for command voltage input signals.
Specific connections and jumper settings for Dyn-Loc IV controller interface.
Table detailing the function and default position of control board jumpers.
Jumper setting for configuring 50Hz or 60Hz operation.
Jumper installation for low inductance coils based on waveform ripple.
Jumper installation for dynamometer coils with less than 25% ECPAU rating.
Jumper installation to enable the 0-20mA current command signal.
Description of custom safety inputs and their connections.
Guide for diagnosing and resolving common faults and problems.
Table of terminal connections and their functions for wall mount units.
Table of terminal connections and functions for rack mount units.
Step-by-step guide for adjusting the PAU's maximum current setting.
Detailed steps including potentiometer adjustments and measurements for max current.
Wiring diagram for 15 Amp rack mount PAU connections.
Wiring diagram for 30 Amp rack mount PAU connections.
Electrical schematic diagram for the wall mount PAU.
