Specifications

RK0YG302 © Danfoss 04/2007 171
ETS
Stepper motor switch sequence:
↑ CLOSING ↑
STEP
Coil I Coil II
↓ OPENING ↓
Red Green White Black
1+-+-
2+- -+
3-+-+
4-++-
1+-+-
Parameter ETS 50-400
Stepper motor type Bi-polar - permanent magnet
Step mode 2 phase full step
Phase resistance 52Ω ±10%
Phase inductance 85 mH
Holding current Depends on application.
Full current allowed (100% duty cycle)
Step angle 7.5° (motor),
0.9° (lead screw),
Gearing ration 8.5:1. (38/13)
2
:1
Nominal voltage (Constant voltage drive) 12 V d.c. -4% +15%, 150 steps/sec.
Phase current (Using chopper drive) 100 mA RMS -4% +15%,
Max. total power Voltage/current drive: 5.5/1.3 W (UL: NEC class 2)
Step rate 150 steps/sec. (constant voltage drive)
0-300 steps/sec. 300 recommended (chopper current drive)
Total steps ETS 50: 2625 [+160/-0] steps
ETS 100: 3530 [+160/-0] steps
ETS 250 and 400: 3810 [+160/-0] steps
Full travel time ETS 50: 17/8.5 sec. (voltage/current)
ETS 100: 23/11.5 sec. (voltage/current)
ETS 250 and 400: 25.4/12.7 sec. (voltage/current)
Lifting height ETS 50: 13 mm (0.5 in.)
ETS 100: 16 mm (0.6 in.)
ETS 250-400: 17.2 mm (0.7 in.)
Reference position Overdriving against the full close position
Electrical connection 4 wire 0.5 mm
2
(0.02 in
2
), 2 m (6.5 ft) long cable
Electrical data
Type
Rated capacity
1)
R410A R407C R22 R134a R404A
kW TR kW TR kW TR kW TR kW TR
ETS 50B
2
) 262.3 75.7 240.5 69.1 215 62 170 48.9 161.4 46.3
ETS 100B
488.4 140.9 447.8 128.7 400.4 115.4 316.5 91.2 300.5 86.6
ETS 250 - - 1212 349 1106 319 874 252 828 239
ETS 400 - - 1933 556 1764 509 1394 402 1320 381
Type
Connection
ODF × ODF
[in.]
ODF × ODF
[mm]
Code No.
Single pack
ETS 50B
2
)
7
/
8
×
7
/
8
22 × 22 034G1008
7
/
8
× 1
1
/
8
22 × 28 034G1005
1
1
/
8
× 1
1
/
8
28 × 28 034G1006
ETS 100B
1
1
/
8
× 1
1
/
8
28 × 28 034G0007
1
3
/
8
× 1
3
/
8
35 × 35 034G0008
ETS 250
1
1
/
8
× 1
1
/
8
28 × 28 034G2000
1
3
/
8
× 1
3
/
8
35 × 35 034G2001
1
5
/
8
× 1
5
/
8
034G2002
ETS 400
1
5
/
8
× 1
5
/
8
034G3000
2
1
/
8
× 2
1
/
8
54 × 54 034G3001
Capacity
1
) The Rated capacity is based on:
Evaporating temperature t
e
: 5°C (40°F)
Liquid temperature t
l
: 28°C (82°F)
Condensing temperature t
c
: 32°C (90°F)
Full stroke opening.
2
) ETS 25B is available upon request.
Please contact Danfoss.
Valve incl. actuator and sight glass – single pack
Type
Connection [in] Connection [mm]
ODF × ODF Indus-
trial
pack
Code No.
Industrial
pack
ODF × ODF Indus-
trial
pack
Code No.
Industrial
pack
ETS 50B
7
/
8
×
7
/
8
9 pc. 034G1000 22 × 22 9 pc. 034G1050
7
/
8
× 1
1
/
8
9 pc. 034G1001 22 × 28 9 pc. 034G1051
7
/
8
× 1
3
/
8
9 pc.
034G1002 22 × 35 9 pc. 034G1052
1
1
/
8
× 1
1
/
8
9 pc. 034G1003 28 × 28 9 pc. 034G1053
1
1
/
8
× 1
3
/
8
9 pc. 034G1004 28 × 35 9 pc. 034G1054
ETS 100B
1
1
/
8
× 1
1
/
8
9 pc. 034G0000 28 × 28 9 pc. 034G0050
1
1
/
8
× 1
3
/
8
9 pc. 034G0001 28 × 35 9 pc. 034G0051
1
1
/
8
× 1
5
/
8
9 pc. 034G0002 28 × 42 9 pc. 034G0052
1
3
/
8
× 1
3
/
8
9 pc. 034G0003 35 × 35 9 pc. 034G0053
1
3
/
8
× 1
5
/
8
9 pc. 034G0004 35 × 42 9 pc. 034G0054
1
5
/
8
× 1
5
/
8
9 pc. 034G0005 42 × 42 9 pc. 034G0055
Valve incl. actuator – industrial pack
Additional information!
Technical brochure: DKRCC.PD.VD1.A
Ordering