✓ Standard: 2-3 days
✓ Urgent: 24-48 hours*
✓ Service Exchange: 48-hour replacement*
✓ Spare Unit: Same unit as the original*
* Services subject to availability
The ZETADYN 2SY is the synchronous-motor half of Ziehl-Abegg’s second-generation lift drive pair, alongside the asynchronous ZETADYN 2CF. It is a complete unit: an integral line reactor, a type FEF radio interference filter and two motor contactors all sit inside the case. The type number reads 2SY, then the nominal current, then S for the version with motor contactors and 4 for 400 V.
It drives permanent-magnet machines, so an absolute encoder is mandatory and a normal incremental encoder will not work. Eight rated sizes run from 13 A to 74 A, about 5.5 kW to 37 kW at 400 V, with overload to 1.8 times rated current for ten seconds.
The motor contactors short the synchronous motor windings to give a speed-dependent braking torque, so with the inverter removed the motor cable must be shorted or the car can run away when the brakes open. That is also why no contactorless version of the 2SY was ever built.
Field-oriented closed-loop control for synchronous gearless lift machines
Supports synchronous motors with 1 to 30 pole pairs
Full rated motor torque available at standstill
Overload to 1.8 times rated current for a maximum of 10 seconds
ENDAT or Heidenhain SSI absolute encoder input on a 15-pin sub-D
Line reactor, FEF radio interference filter and motor contactors built in
| Manufacturer | ZIEHL-ABEGG |
|---|---|
| Series | ZETADYN 2SY, for synchronous motors (S4 type range) |
| Motor rated current | Up to 74 A |
| Synchronous motor pole pairs | Between 1 and 30 pole pairs |
| Absolute encoder required | AWG2S-2048/7K/05V-1 with ENDAT interface or Heidenhain SSI protocol; 15-pin sub-D connector; maximum permissible cable length 10 m |
| Rated terminal voltage | 3~ 400 V (absolute +10/-15 %) |
| Network form | TT, TN |
| Mains frequency | 50 / 60 Hz ±1.5 Hz |
| Nominal power for sizes 013 / 017 / 023 / 032 / 037 / 046 / 062 / 074 † | 5.5 / 7.5 / 11 / 15 / 18.5 / 22 / 30 / 37 kW |
| Nominal current, 60 % duty cycle, 8 kHz switching frequency † | 13 / 17 / 23 / 32 / 37 / 46 / 62 / 74 A |
| Nominal current, 60 % duty cycle, 12 kHz switching frequency † | 11* / 15* / 20* / 27 / 31 / 39 / 53 / 63 A |
| Nominal current, 60 % duty cycle, 16 kHz switching frequency † | 10* / 13* / 17* / 24 / 28 / 35 / 46 / 55 A |
| Max. operating current for 10 s † | 24 / 31 / 42 / 58 / 67 / 83 / 112 / 134 A |
| Overload capability | Maximum 10 s by a factor of up to 1.8 |
| Switching frequency note | At a switching frequency above 8 kHz a brake chopper of type BC25 must generally be used |
| Power loss (system at standstill) | 60 W |
| Power loss at 240 journeys per hour † | Less than 0.3 / 0.3 / 0.4 / 0.5 / 0.6 / 0.7 / 0.9 / 1.1 kW |
| Mains fuses (anti-surge) † | 16 / 20 / 25 / 35 / 50 / 50 / 63 / 80 A |
| Min. conductor size, motor cable † | 2.5 / 4 / 4 / 6 / 10 / 10 / 16 / 25 mm2 |
| Min. conductor size, brake chopper cable | 6 mm2 |
| Permissible ambient temperature in operation | 0 to 40 °C; above 40 °C with a power reduction of 1.66% per 1 K temperature rise; maximum 55 °C with a power reduction of 25% |
| Storage and transport temperature | -20 to +60 °C |
| Height of installation above sea level | Up to 1000 m; above 1000 m with a power reduction of 1% per 100 m of height; maximum 2000 m |
| Protection class (DIN 40050, IEC 144) | IP 20; requirements of VBG 4 are fulfilled |
| Relative humidity | 90 %; condensation not permitted |
| Dimensions (H x W x D) † | 600 x 358 x 190 mm and 730 x 358 x 251 mm (two enclosure variants) |
| Installation clearances | Minimum 50 mm at each side, minimum 100 mm above and below; mount the controller vertically with the cable connection terminals at the bottom |
| Control inputs | Current consumption typically 25 mA per input; voltage between +24 V and GND unstabilised 20 to 24 V DC |
| Relay outputs | Contact rating 230 V AC / 2 A at cos phi greater than 0.4; minimum switching duty 12 V / 2 mA |
| Auxiliary contacts, motor contactors | Minimum switching duty 17 V / 5 mA |
| Speed encoder input, maximum frequency | 500 kHz (10,000 pulses per revolution, 3000 min-1) |
| Motor PTC connection P1-P2 | Motor temperature monitoring for PTC thermistor to DIN 44 081; a fault is triggered with a resistance at P1/P2 greater than 3.6k ohm |
| EMC and RFI suppression | Tested to IEC 801-4; RFI suppression to DIN EN 55011 Part 11 (Class B limit) using a type FEF RFI filter. To comply with Class B limits the motor cable must be screened and must not be longer than 10 m |
| Sound pressure level (fan in operation) | Sizes 013, 017, 023: typically 50 dB(A); 032, 037, 046: typically 49 dB(A); 062, 074: typically 52 dB(A). The English revision of the manual instead quotes only 52 dB(A) for inverter size 2CF / 2SY 110 |
| Product Status | Obsolete. The ZETADYN 2 generation is absent from the current Ziehl-Abegg range; the manufacturer's own route off it is the ZETADYN 2 to ZAdyn4C retrofit kit |
† These electrical, loss and dimensional figures come from the manufacturer's own joint ZETADYN 2CF / 2SY appendix A1 data table, reconstructed from two independent mirrors of the manual which agree on every value. Please confirm them against the documentation supplied with your own unit before relying on them. Values marked * are the small enclosure variant. Figures apply to sizes 013 to 074 only; no ratings are recorded here for the 110 frame.
| Umrichter-Typ 2SY (Converter type 2SY) | Artikel-Nr. (Part No.) |
|---|---|
| ZETADYN 2SY013S4 * | 352151 |
| ZETADYN 2SY017S4 * | 352152 |
| ZETADYN 2SY023S4 * | 352153 |
| ZETADYN 2SY032S4 | 352154 |
| ZETADYN 2SY037S4 | 352155 |
| ZETADYN 2SY046S4 | 352156 |
| ZETADYN 2SY062S4 | 352157 |
| ZETADYN 2SY074S4 | 352158 |
| ZETADYN 2SY110B4 | 352150 |
Type code: the number is the nominal current in amps (013 = 13 A through to 074 = 74 A), 4 denotes the 400 V rated voltage and S is the version with motor contactors. The 2SY range is supplied only in the version with motor contactors, because the 2SY relies on those contactors to short the synchronous motor windings. Values marked * are the small enclosure variant. The electrical data table covers sizes 013 to 074, so no ratings are shown here for the 2SY110B4. Please contact us with the type designation from your unit and we will confirm support for it.
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