P.W.M. 4-Q amplifier for DC-motors

MTRS 20...170/12-24, MTRS 20...170/20-40

Technical data

	MTRS 20...170/12-24	MTRS 20...170/20-40
Nominal voltage	20...170V DC
Nominal current	12A	20A
Pulsed current	24A	40A
Duration of pulse current	max. 3sec.
Output current-factor	< 1.007
Frequency of the final stage	9kHz
Frequency between output binders	18kHz
Frequency range current control	1kHz
Aux. voltage (int. mains adaptor)	±15V / 20mA
Diff. input set value	±10V / 40kOhm
Range to tacho voltage for nominal speed	1.7...85V
Dimensions	European standard size pcb 3HU 100 x 160mm, 8PE
Connection	plug-in connector DIN 41612-F48
Basic frequency (against ground)	9kHz
Max. ambient temperature	+45°C
Max. temperature of disspator	+90°C
Min. load inductance	0.8mH
Max. tacho voltage	±85V
Fitting position	vertical
Heat dissipation	convection (up to 12A)
Weight	approx. 1.5kg
Article Code	RMTRS170/12V01	RMTRS170/20V02

Inputs

speed set value ±10V
limit current 0...10V by diffencial amplifier with common relative level
tacho input
final stage release +15...+24V
intermediate circuit connection
aux. voltage supply ±15V (serves as input, if there is no internal aux. mains adaptor, otherwise it serves as output for set value and release- ...)

Outputs

Ready for operation
dynamic brake
I²t- indication
limit of pulsed current; each by open collector output (PNP, high-active = +13.5V)
motor connection

LED-indicators

Built-in checkings

Adjustments

P1...P4: and P201 are 19mm spindle potentiometers accessible through the front panel, P202 is only internally accessible
P1: effective current
P2: tacho
P3: gain of the speed control
P4: pulsed current
P201: speed control-offset
P202: current control-offset

* Attention:
All signal/control cables must be shielded. Please observe minimal cross section of cable according to VDE 700.

including	connector, manual

Customer pcb	plug-in pcb with all user dedending parts and adjustments (potentiometer P1...P4, parts determining the frequency, parts for current limit, tacho filter and soldering bridges) for immediate takeover of all adjustments, in case of a replacement of the structural components (e.g. for service purposes)

Auxiliary equipment	current control operation (supported by a special customer pcb; IxR-control not possible), front panel, tacho control (instead of the internal aux. voltage mains adaptor), ballast card 3HU (separate parts), dynamic brake 3HU (separate parts), Chokes (for disk-armature motors with poor inductivity)

Power supply	MTRS-NT 200/20