Siemens S7-400 FM453 three-axis servo/stepper positioning / 6ES7453-3AH00-0AE0

Technical specifications

Controller family

SIMATIC S7-400

Axes

Up to 3 independent motors/axes

Drive types

Servo and/or stepper motor drives

Digital inputs

6 per channel/axis; configurable

Digital outputs

4 per channel/axis; configurable

Input types

Symmetrical incremental encoder; SSI absolute encoder

Symmetrical encoder input

5 V differential RS-422; maximum 1 MHz at 10 m cable or 0.5 MHz at 35 m cable

SSI interface

5 V differential RS-422; maximum 1.25 Mbit/s at 10 m cable; 250 m maximum at 156 kbit/s

Pulse output frequency

200 kHz; the catalogue says 500 kHz available soon, so 500 kHz is not treated as verified

Pulse interface

5 V physical RS-422; clock pulse, direction, enable and current control

Analog output function

Servo drive analog differential speed setpoint; rated voltage range -10 to +10 V; output current capability -3 to +3 mA

Rated supply

24 VDC auxiliary supply; static range 20.4–28.8 VDC, dynamic range 18.5–30.2 VDC

Power dissipation

8 W maximum

Operating temperature

0–55 °C

Protection rating

IP20

Required front connector

1 x 48-pin; select suitable front connector

Width

50 mm

Height

290 mm

Depth

210 mm

Weight

Approximately 1620 g

Document pages

PDF 80, 81

Current lifecycle status

Not established by historical May 2017 catalogue; confirm current lifecycle and supply separately

Setpoint voltage range

-10 to +10 V; analog differential signal

Setpoint output current

-3 to +3 mA; current capability, not a current-mode setpoint range

Documents / datasheets

Source reviewed: 2026-10-22

Description

6ES7453-3AH00-0AE0: Controls up to three independent servo and/or stepper motors; future features mentioned in the old catalogue are not confirmed capabilities. Specifications follow the exact manufacturer table in the May 2017 catalogue; verify supplied revision, current lifecycle and availability separately.