Atec MB-Dynamics-MB1000VI User Manual

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Option 2: Exciter Cooling ON/OFF with Overtravel Shutdown

Each amplifier with this option monitors the temperature of the exciter coil and turns ON or OFF the cooling package. The ampli-
fier also shuts down when an exciter over-travel condition occurs.

JOBS-TO-BE-DONE with this Option

1) Turns ON the AC-line-powered portable cooling package (if one is present) for MODAL 25, MODAL 50, MODAL 110, MODAL
250; CAL 50, PM25, PM50, PM250, Energizer BLUE, and Energizer RED when exciter coil temperature exceeds COOLING NEEDED
set point; 2) Turns OFF amplifier when its exciter’s coil exceeds its OVER-TEMPERATURE set point; 3) Displays exciter temperature
on amplifier LCD display in 3 ranges: <50 degC or <120 degF (no cooling required); 50 degC to 75 degC or 120 degF to 165 degF
(cooling required); >75 degC or >165 degF (amplifier shuts down exciter due to OVERTEMPERATURE); 4) Shuts down amplifier
when exciter exceeds max allowable internally-preset peak-to-peak displacement limits.

User Value

PROTECTS EQUIPMENT: 1) No risk of burning-up moving
element coil; 2) Automatically turns ON cooling when coil
is hot & turns OFF cooling when coil cools down; 3) Au-
tomatically turns amplifier OFF when exciter coil gets too
hot; 4) Automatically turns OFF amplifier when exciter
moving element exceeds max displacement. USER CON-
VENIENCE 5) Minimizes annoying blower noise because
cooling package runs only when needed; 6) Minimizes
user worry about whether exciter needs to be cooled to
deliver force commanded and whether exciter coil risks
failure due to overheating -- not necessary for user to
manually intervene to control exciter cooling package.

Deliverables

Exciter AC-line-powered cooling package, cooling control switch, RTD on exciter coil, overtravel switches on exciter moving ele-
ment, PIC microcontroller and software, amplifier internal parts included. PCBs, and interlock cables. The diagram to the right
shows an example of Option 2.

Options 1 & 2 Combined: Remote Amplifier & Exciter Cooling ON/OFF with Overtravel Shutdown

Option 3: Exciter ON/OFF with Overtravel Shutdown

Each amplifier with this option monitors the temperature of the exciter coil and turns OFF the exciter if this temperature
exceeds a pre-set threshold and there is no cooling package. The amplifier also shuts down when an exciter over-travel con-
dition occurs. Except for references to the cooling package, the description in Option 2 applies to Option 3.

13MAY17a

DATA SHEET

MB Dynamics, Inc.

25865 Richmond Road · Cleveland OH · 44146 USA

+1 216 292 5850 phone +1 216 292 5614 fax