s 4 591 ACVATIX™ Electronic connection for valves with magnetic actuator • Terminal housing for control of valves with magnetic actuator • Control with choice of positioning signals or direct control ZM.. ZM../A AC 24 V DC 0…10 V DC 4…20 mA DC 0…20 V Phs Use Terminal housing for the control of Siemens control valves and pilot valves with magnetic actuator.
Functions ZM../A ZM100/A, ZM101/A, ZM120/A, ZM121/A, ZM200/A, ZM220/A The electronic connections in terminal housings ZM../A are signal transducers respectively power amplifiers. They convert a DC 0...10 V or DC 4...20 mA positioning signal into a DC 0...20 V phase cut signal. The operating voltage of these electronic connections is AC 24 V. [V] Phase cut signal Phs 4591Z01 Typical operating range of valves with magnetic actuators (0...100 % stroke).
Technical design The differential amplifier with signal inputs [3] and [4] is isolated from the AC supply by a high resistance. For 3-wire applications the signal negative [3] must be connected to AC supply terminal [1]. 1 50203 B G ~ + AC 24 V ~ – 2 M – DC 0 ... 10 V (DC 4 ... 20 mA) 3 Q T + R 4 V E – 5 DC 0 ...
Disposal The device is considered electrical and electronic equipment for disposal in terms of the applicable European Directive and may not be disposed of as domestic garbage. • Dispose of the device through channels provided for this purpose. • Comply with all local and currently applicable laws and regulations. Warranty Application-specific technical data must be observed. If specified limits are not observed, Siemens Switzerland Ltd will not assume any responsibility. Technical data ZM..
Connection terminals Warning If a ZM../A terminal housing is used with DC 0...20 V Phs (phase cut), AC 24 V must not be connected! Always switch off the power supply before connecting or disconnecting the ZM.. or ZM../A terminal housing. Connection diagrams ZM../A, DC 0…10 V Controller with 4-wire connection ZM../A supplied from controller transformer or (over longer distances) from a separate transformer. AC 24 V ZM100/A ZM101/A ZM200/A Controller ~ AC 24 V ~ GND – DC 0 ...
Note: ZM../A, DC 4…20 mA If, for reasons of cross-section, the AC 24 V and DC 0 ...10 V (or DC 4 ... 20 mA) cables are routed separately, the AC 24 V cable need not be twisted. ZM../A supplied from controller transformer or (over longer distances) from a separate transformer. AC 24 V ZM120/A ZM121/A ZM220/A Controller DC 4 ... 20 mA Note: ~ ~ – + 50210 A ~ ~ – + Several DC 4 ... 20 mA receivers can be driven by the same control signal (series connection – check input impedance!).
Dimensions Dimensions in mm 92.
Issued by Siemens Switzerland Ltd Building Technologies Division International Headquarters Theilerstrasse 1a 6300 Zug Switzerland Tel. +41 58-724 24 24 www.siemens.com/buildingtechnologies © Siemens Switzerland Ltd, 2009 Technical specifications and availability subject to change without notice.
