Magtrol 5210-2 User Manual

Current-regulated power supply

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Model 5210-2 Power Supply
1.0

IntroductIon

The Model 5210-2 is a current-regulated power supply and display that is designed for use with
Magtrol's Dial Weight Dynamometers. With regulated current, torque drift caused by temperature
changes within the brake coil is eliminated.
The 5210 is a solid-state control that provides smooth application of current from zero to maximum.
Braking power can be controlled manually from either the 10-turn potentiometer and adjustment
knob on the front panel, or externally from the 0–5 V DC input when remote operation is desired.
An LCD readout conveniently displays the applied braking current.
1.1
S
pecificationS
Note:
Magtrol offers three different models of the 5210 Power Supply,
each with a different maximum voltage output. The 5210-1 is 90
volts, 5210-2 is 24 volts, and the 5210-3 is 12 volts. All Magtrol
Dial Weight Dynamometers are designed with a 24 volt coil.
Therefore, the 5210-2 is the only power supply that should be used
with a dial weight dynamometer. The 5210-1 and 5210-3 are for
use with Magtrol brakes and clutches only.
Brake Voltage
currEnt rAnGES:
Low Scale
Medium Scale
High Scale
current regulation
Braking control
Brake Fuse (5 × 20 mm)
Line Fuse (5 × 20 mm)
Power requirements
Voltage requirements
0 to 24 V DC
0 to 200 mA
0 to 500 mA
0 to 1000 mA
± 1% Full Scale
10-turn potentiometer (internal) or
0–5 V DC input (external)
UL/CSA 1.25 A
250 V SB
IEC
1.00 A
250 V T
120 V:
UL/CSA 1.0 A
240 V:
IEC
0.4 A
100 VA
120/240 V AC 50/60 Hz
1
250 V
SB
250 V
T

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Summary of Contents for Magtrol 5210-2

  • Page 1 Model 5210-2 Power Supply IntroductIon The Model 5210-2 is a current-regulated power supply and display that is designed for use with Magtrol’s Dial Weight Dynamometers. With regulated current, torque drift caused by temperature changes within the brake coil is eliminated.
  • Page 2 User’s Manual Magtrol Model 5210-2 Power Supply ront and anel ircuit eScription Functionally, the circuit is a closed loop, current feedback amplifier regulating the output current at the value set by the front panel controls. DC current from the internal 35 volt power supply passes through the dynamometer coil connected at the BRAKE connector J6, through the insulated gate field effect transistor Q1 (HEXFET), and through a current sense resistor R13, R14 or R15 (selected by the RANGE control).
  • Page 3 An EXTERNAL CONTROL input is provided at the rear of the 5210-2 to adjust the dynamometer current from an external 0 to + 5.0 VDC input. This input is scaled for 5.0 VDC and equals the full scale output current of each current range (0.2, 0.5 and 1.0 amp).
  • Page 4 User’s Manual Magtrol Model 5210-2 Power Supply APPEndIx A: ScHEMAtIc 1N6295A 1N4745 1 3W .001 IRF740 47 pF .001 EXTERNAL LM358A CONTROL INPUT 1N4735A 1N5060 BRAKE .001 9.09K 5V CALIBRATE 2.49k 1N4148 1N4148 1.5k ADJUST 1.5k 1N821A SW2b HIGH SW2a .2A CAL...

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