Kollmorgen EB-8902 Manual

Kollmorgen Brushless Motor Amplifier
EB-20X Series Motors
Installation and Service Manual
Edition: September 2020, Revision B
Part Number: EB-8902
Original Document
For safe and proper use, follow these instructions. Keep for future use.

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Record of Document Revisions
Revision
Date
Remarks
1 05/1990 Initial Release
2 10/2004 Update corporate identity and contact information
B 09/2020 Rebrand, CE and Declaration of Conformity removed
IMPORTANT NOTICE
Copyright©Kollmorgen™1990 – 2020. All rights reserved.
Technical changes which improve the performance of the device may be made without prior
notice!
This document is the intellectual property of Kollmorgen. All rights reserved. No part of this work may be
reproduced in any form (by photocopying, microfilm or any other method) or stored, processed, copied or
distributed by electronic means without the written permission of Kollmorgen.
SAFETY – READ ALL INSTRUCTIONS BEFORE INSTALLING THIS MOTOR
Dangerous voltages exist in this equipment. Do not attempt connecting or probing this
equipment with power on.
The fold back feature must limit the over current to no more that 300% of rated current
for a maximum period of 8 seconds.
Do not install the amplifier in a hazardous (classified) location unless the amplifier is
listed for such location. The motor is U.L. listed for class I, C, and D, but the amplifier
might not be suitable for such locations.
Do not operate the motor outside the parameters shown on the respective
performance curve.
Do not service unless area is known to be non-hazardous. Keep covers tight while
circuits are live.
Connect internal thermostat to limit motor surface temperature.
Instructions are provided indicating that motor thermostat is an automatic resetting
device.
Upon receipt of the equipment, closely inspect the components to ensure that no
damage has occurred in shipment. If damage has occurred, notify the appropriate
carrier at once.
Save these instructions for future reference..Should any question arise regarding any
step outlined in this manual, please call the factory.
Proprietary Information of the Kollmorgen Corporation is furnished for customer user
only. No other uses are authorized without written permission of Kollmorgen.

EB-20X Installation & Service Manual | Contents
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1INTRODUCTION .................................................................................................. 4
1.1 Amplifier and Power Supply Ratings....................................................... 5
2. WIRING ................................................................................................................ 6
2. 1 TYPICAL AMPLIFIER ............................................................................. 7
2.1.1. OUTLINE DIMENSIONS......................................................................... 7
2.1.2. FRONT VIEW.......................................................................................... 8
2.1.3. SIDE VIEW.............................................................................................. 8
2. 2 TYPICAL POWER SUPPLY ................................................................... 9
2.2.1. OUTLINE DIMENSIONS......................................................................... 9
2.2.2. FRONT VIEW........................................................................................ 10
2.2.3. SIDE VIEW............................................................................................ 10
2. 3 SYSTEM WIRING .................................................................................11
2. 4 TYPICAL MOTOR WIRING ..................................................................13
2. 5 GROUNDING........................................................................................14
2. 6 INPUTS .................................................................................................14
2. 7 PRELIMINARY CHECKS...................................................................... 14
2.7.1. CHECK AC INPUT VOLTAGE..............................................................15
2.7.2. CHECK DC OUTPUT VOLTAGE ......................................................... 15
2.7.3. ZERO SYSTEM RESOLVER................................................................15
2. 8 3-PHASE POWER TRANS...................................................................16
3. MOTOR DATA PACKAGE ................................................................................ 18
3. 1 MODEL NUMBER.................................................................................18
3. 2 EB-20X ..................................................................................................19
3.2.1. EB-20X-11.............................................................................................19
3. 3 EB-202 .................................................................................................. 20
3.3.1. SPECIFICATIONS CD-26716...............................................................20
3.3.2. PERFORMANCE CURVES .................................................................. 22
3. 4 EB-204 .................................................................................................. 25
3.4.1. SPECIFICATIONS CD-26717...............................................................25
3.4.2. PERFORMANCE CURVES .................................................................. 27
3. 5 EB-206 .................................................................................................. 30
3.5.1. SPECIFICATIONS CD-26718...............................................................30
3.5.2. PERFORMANCE CURVES .................................................................. 32
3. 6 TYPICAL CURRENT AND VOLTAGE (WAVE FORMS AT MOTOR) )35
3.6.1. CURRENT PHASE C............................................................................35
3.6.2. VOLTAGE LINE A-C ............................................................................. 35
3. 7 INTERMITTENT DUTY OPERATION...................................................35
4. TYPICAL AMPLIFIER DATA PACKAGE..........................................................39
4. 1 TYPICAL AMPLIFIER SPECIFICATIONS ............................................39
5INDEX................................................................................................................. 40

EB-20X Installation & Service Manual | Introduction
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1 INTRODUCTION
This installation and service manual is a general document and is applicable to a typical amplifier
needed to properly control the EB-20X motor series. Since servo amplifiers drive motors of
varying sizes with different operating characteristics (voltage and current, internal resistance,
inductance, rotor inertia, etc.), these amplifiers must vary with the specific motor. Consult the
manufacturer of the amplifier to assure operation per the motor’s nameplate data.
The customer data (CD) and performance curve (PC) are specific documents and are applicable
only to individual motors. They contain such information as maximum operating speed, peak
current limits, and values that make the amplifier motor combinations compatible. Do not operate
the motor outside the parameters shown on the respective performance curves
Typical amplifiers are 3-phase sine wave, pulse-width modulated type. They are fully regenerative
four-quadrant bi-directional velocity loop amplifiers designed to be used with Kollmorgen's high-
performance permanent magnet brushless motors.
An unregulated 300 VDC bus, derived from full-wave rectification of a 3-phase 230 AC line by the
power supply unit, is used to power the motor amplifier.
Kollmorgen's brushless motors feature the latest in permanent magnet technology, utilizing high-
energy Samarium Cobalt and Neodymium Iron Boron alloys. These brushless motors consist of
permanent magnet rotors and 3-phase Y-stator windings. Brushless motors have no commutators
or associated brushes. These motors run as synchronous motors, meaning the rotor speed is the
same as the speed (frequency) of the rotating stator's magnetic field. A brushless resolver is used
as the feedback device and is mounted internally as part of the overall motor construction.
Benefits resulting from the typical amplifier and brushless motor construction are:
•Lower rotor inertia permits higher acceleration rates.
•The motor is thermally more efficient since all heat is generated in the stator windings, which
are in the outside shell.
•Higher speed operation and high peak horsepower are achieved. There is no commutation
limit.
•Smaller physical motor size for a given horsepower rating.
•Higher reliability and less motor maintenance. There is no commutator or brushes.
•Smooth output torque.

EB-20X Installation & Service Manual | Introduction
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1.1 Amplifier and Power Supply Ratings
Ratings
Input Power:
235 V
RMS
(L-L) 3-phase (±10%); isolation transformer not required –
provided short circuit (inrush) current remains limited to less than
1000 amps.115 VAC 1-phase control power.
Output Power
Power Supply DC Bus
325 VDC nominal, no load
Amplifier: at rated load
230 VRMS (L-L), Nominal ±10%
Continuous Current
(ARMS/Phase)
Intermittent Current
(5 sec. max., 30% duty cycle)
(ARMS/Phase)
As required to produce motors
rated current
200% of continuous
Ambient
Operating
Temperature:
0-55° C
Switching
Frequency
10 kHz
Cooling
Fan, Convection (cold plate)

EB-20X Installation & Service Manual | Wiring
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2. WIRING
Install this motor and typical amplifier per the national electrical code.
To adhere to suitable engineering practices, connect the 115 VAC circuit so the 115 VAC is
applied first in order to activate the control and fault circuits before applying the main bus voltage.
Provide over-current protection, based on continuous rated current, per article 430 of the NEC. If
possible, adjust the amplifier accordingly. Otherwise, provide external protection.
See the Typical Motor Wiring section for the correct method of wiring the motor stator. Connect
the BROWN, RED, and WHITE leads to the points identified as Ma, Mb, and Mc on the power
terminal block. Connect the green/yellow lead to the ground point of the same terminal block.
Bring the 3-phase 230 input power through a customer supplied circuit breaker and connect it to
points identified as La, Lb, and Lcon the power terminal block mounted on the power supply. The
system is not AC line phase sensitive. (See the System Wiring section). Connect the 325 VDC
output, the 115 VAC amplifier with the strapping bars and the small 115 VAC and regen cable.
Check to ensure that the small cable is connected to the correct pins and that it is not offset to
one side. To access the control terminal strips to wire the typical amplifier, review the wiring
diagrams and:
1. Wire the typical amplifier control terminal strips per the system-wiring diagram. The wiring
should be neatly dressed so it does not interfere with remounting the cover.
2. Unplug the C1, C2, and C3 point terminal strips from their connectors on the amplifier motor
control board. This prevents over flexing the board when wiring up the connectors.
3. After unplugging the terminal strips from the motor control board, wire them per the
appropriate wiring diagram.
4. Neatly dress the wire cable so it enters the amplifier chassis and does not interfere with the
front cover. Dress signal cables separately - not with the AC or power wiring.
5. Leave sufficient length in the wiring to allow the motor control board to slide out enough to
expose the small compensation board. Insert the wired terminal strips back on their
connectors.
The following precautions are also recommended:
1. Twist all AC leads to minimize electromagnetic emissions and pick-up. Maintain the shield
over resolver leads.
2. Avoid running signal leads near power leads, armature leads, or other sources of
electromagnetic noise.
3. Minimize lead lengths as much as practical.
4. Double-check all interface wiring. Carefully inspect all connections.
5. Do not use the main contactor for control functions.
Motor and resolver phasing are critical for proper operation.

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2. 1 TYPICAL AMPLIFIER
2.1.1. OUTLINE DIMENSIONS
INDUSTR
IAL
DRIVES
BOS4
C
1
C
3
C
2
M
o
M
a
BU
S -
BU
S +
Mc
GN
D
CURRENT LIMIT
COMMAND SCALE
BALANCE
CONTROL VOLTS
ENABLED
DRIVE READY
FOLDBACK
OVERTEMP
OUTPUT FAULT
STABILITY
0.00
254.00
279.44
0.00
28.00
56.00
0.00
7.50
15.50
R5.00
6.50 DIA.
0.00
18.00
36.00
335.50
343.00
R3.25
A-84471

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2.1.2. FRONT VIEW
2.1.3. SIDE VIEW
HIGH
VOLTAGE
COVER
PLATE
LOGIC
SUPPLY
CONNECTOR
RESOLVER
CONNECTOR
CUSTOMER I/O
CONNECTIONS
DRIVE
INDICATORS
DRIVE
ADJUSTMENTS
POWER
STAGE
INDUSTRIAL
DRIVES
BOS4
C1
C3
C2
Mo
Ma
BUS -
BUS +
Mc
GND
CHASSIS GND
DRIVE ADJUSTMENTS
DRIVE INDICATORS
CUSTOMER I/O CONN.
RESOLVER CONN.
LOGIC SUPPLY CONN.
BUS & MOTOR CONN.
CURRENT LIMIT
COMMAND SCALE
BALANCE
CONTROL VOLTS
ENABLED
DRIVE READY
FOLDBACK
OVERTEMP
OUTPUT FAULT
STABILITY
CURRENT LIMIT
COMMAND SCALE
BALANCE
CONTROL VOLTS
ENABLED
DRIVE READY
FOLDBACK
OVERTEMP
OUTPUT FAULT
STABILITY

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2. 2 TYPICAL POWER SUPPLY
2.2.1. OUTLINE DIMENSIONS
INDUSTRI
AL
DRIVES
C
1
C
2
Lb
La
BUS
-
BUS
+
Lc
GND
REGEN
OVERLOAD
BLOWN FUSE
0.00
254.00
279.44
0.00
28.00
48.00
0.00
7.50
15.50
R5.00
6.50 DIA.
0.00
18.00
58.00
335.50
343.00
R3.25
76.00
327.50
THIS RESISTOR NOT USED
ON 12 AMP VERSION
A-84468

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2.2.2. FRONT VIEW
INDUSTRIAL
DRIVES
C1
C2
Lb
La
BUS -
BUS +
Lc
GND
CHASSIS GND
FAULT OUTPUT &
115 VAC CONTROL
POWER INPUT
18 & + 10 VOLT
CONTROL
VOLTAGE OUTPUT
REGEN
OVERLOAD
BLOWN FUSE
MAIN D.C.
BUS OUTPUT
MAIN INPUT
POWER
REGEN LED
OVERLOAD LED
BLOWN REGEN
FUSE LED
REGEN
OVERLOAD
BLOWN FUSE
+
-
2.2.3. SIDE VIEW
REGENERATIVE LOAD
RESISTORS
REGENERATIVE
POWER TRANSISTOR
INPUT DIODE MODULE
LOGIC POWER
SUPPLY
TRANSFORMER
REGEN LED
OVERLOAD LED
BLOWN REGEN
FUSE LED
FAULT OUTPUT
& 115VAC
CONTROL
POWER INPUT
18 & +10 VOLT
CONTROL
VOLTAGE
OUTPUT
HIGH
VOLTAGE
COVER
PLATE
+
-

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2. 3 SYSTEM WIRING
C 2
C 4
C 3
C1
1
2
3
4 1
2
3
1
2 5
6
3
4 1
2
3
1
2
3
4 1
2
7 8
5
6
7 8
5
6
4 5
6
4 5
6
3
4
9
1 0
7 8
9
1 0
7 8
1 1
1 2
1 3 1 4 1 5 1 6
1 7 1 8 1 9 2 0
1 1
1 2
C 1
C 2
DIFF CMD HI
DIFF CMD LO
AUX IN
ENABLE
I LIMIT
RESET
TORQUE HOLD
COMMON
OUTPUT FAULT
I MONITOR
FOLDBACK
SPD MONITOR
OVERTEMP
DRIVE-UP
INPUT/OUTPUT (SEE NOTE 1)
SHIELD
SHIELD
SHIELD
TO RESOLVER
ON SHEET 2
(SEE NOTES 1 & 2)
SHIELD
SIN HI
SIN LO
COS HI
COS LO
REF HI
REF LO
SHIELD
SHIELD
115 VAC
CONTROL
VOLTAGE
(SEE NOTE 1)
POWER BUS
TO ADDITIONAL
AXIS MODULES
GND
GND
Mc
Mb
Ma
BUS
-
BUS
+
TYPICAL AMPLIFIER
TO MOTOR ON SHEET 2
18 AWG MIN FOR 3 AND 6 AMP UNIT
14 AWG MIN FOR 10 AMP UNIT
12 AWG MIN FOR 20 AMP UNIT
SEE NOTE 4
600 VAC RATED INSULATION
(SEE NOTES 3 & 4)
+10 VDC ± 20%
COMMON
-
18 VDC ± 20%
+18 VDC ± 20%
CONNECT C4 ONLY ON 20 AMP UNITS
12 AWG
OPTIONAL EXTERNAL SHUNT
REGULATOR RESISTOR (SEE NOTE 7)
FAULT CONTACT OUTPUT
(SEE NOTES 1 & 5)
CONTROL POWER INPUT
115 VAC ± 15% 50/60 Hz
(SEE NOTES 1 & 8)
OPTIONAL TO
ADDITIONAL AXIS MODULES
SEE NOTES 3, 4, & 8
CUSTOMER SUPPLIED
CIRCUIT BREAKERS
OR LINE FUSES
(SEE NOTES 5 & 6)
3-PHASE 230 VAC
1-PHASE 115 VAC ± 10% 50/60 Hz
EARTH OR MACHINE GROUND (SEE NOTE 4)
GND
Lc Lb La
BUS
-
BUS
+
TYPICAL POWER SUPPLY
*Notes are on the following page.

EB-20X Installation & Service Manual | Wiring
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Notes for System Wiring
1. All signal and control wire must be 22-18 AWG wire. If 16 AWG is desired, use Molex #39-00-
0078 crimp pins (not supplied) instead of the parts supplied.
2. Resolver must be wired with three (3) sets of 2-conductor shielded pairs as shown.
Thermostat wiring must be a twisted pair.
3. Caution, the screws in the power terminal blocks are captive. Do not attempt to remove them
for using ring terminals. Use locking type spring spade terminals such as Hollingsworth
#XSS20954S or #SS20947SF for 16/14 AWG wire and #XSS20836 or #SS20832F for 12/10
AWG wire.
4. Wire gauge is dependent on application. For total axis currents less than 9-amps, use 16
AWG. For total axis currents greater than 20-amps, use 10 AWG.
5. Wire the power supply fault contact (rated 115 VAC 1 amp) to drop main 3-phase power (La,
Lb, Lc) in fault conditions. (This contact is normally open, closed on power-up (approx. 0.250
ms) and opens in fault conditions.)
6. Fuse or circuit breaker sizing dependent on application.
PSR4 Recommended Fuse
12-amp Buss #FAN-A-12 or equivalent
20-amp Buss #FAN-A-20 or equivalent
7. Resistor must be mounted away from any flammable material. A 400 VDC potential is
present (maintain electrical isolation for this voltage rating).
8. All AC lines should be twisted cables.

EB-20X Installation & Service Manual | Wiring
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2. 4 TYPICAL MOTOR WIRING
WHITE
WHITE
WHITE
RED
BROWN
MOTOR
GRN/YEL
DC B A
GND Mc Mb Ma
BRAKE:
BLUE LEADS
(see note 3)
SYSTEM
RESOLVER
LEADS WILL
EXIT WITH
MOTOR
LEADS
RED
BLACK
YELLOW
BLUE
YEL/WHT
RED/WHT
A B
C
D
E
F
SIN HI
SIN LO
COS LO
COS HI
REF HI
REF LO
I/O
(OPTO 22)
LATCHED
POWER
DOWN
RELAY
RED
BLACK
YELLOW
BLUE
YEL/WHT
RED/WHT
A B
C
D
E
F
SIN HI
SIN LO
COS LO
COS HI
REF HI
REF LO
APPLICATION
RESOLVER
(see note 4)
PIN 2
PIN 15
(ENABLE)
(COMMON)
I/O TERMINALS OF
TYPICAL AMPLIFIER
LATCHED POWER
DOWN CIRCUIT
CUSTOMER SUPPLIED
THERMOSTAT RATED 110-240 VAC 360 VA (see notes 1 & 2)
TYPICAL MOTOR CONNECTIONS
*Notes are on the following page.

EB-20X Installation & Service Manual | Wiring
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Notes for Typical Motor Wiring
1. The motor thermostat is an automatic resetting device and should be connected into a
latched (lock-out) power down type circuit.
2. Thermostat to be wired with twisted pair.
3. Energize the brake before switching the motor on and while it is in operation. For proper
operation, use an electrical interlock circuit to ensure that the brake is not engaged while the
motor is energized.
Model Holding VDC Holding ADC
EB-20X-X-XX-B2
90
0.09
EB-20X-X-XX-B3
24
0.52
4. Application resolver leads will exit at a different location from system resolver leads.
2. 5 GROUNDING
Ground the motor at the amplifier motor terminal block or at the main ground point. Connect
shielded cables at one end only. Butt the other end.
2. 6 INPUTS
The drive-up contact closure (internal) is provided at pins 10 and 20. When this internal contact is
closed, it indicates to the outside world (software) that the typical amplifier is ready to operate.
When open, it is an indication that it is in the inhibit mode. The contact is rated at 115 VAC at 2
amps.
The motor is provided with two, normally-closed thermostat reset
devices connected in series. They are auto-resetting devices intended
to shut off power from the amplifier to limit the surface temperature of
the motor and prevent ignition in hazardous atmospheres.
The remote inhibit disables the amplifier without removing the main power. When a contact is
closed between pins (2 and 15) D common, the amplifier is placed in drive-up or ready-to-operate
mode. Opening the contact places the amplifier in the inhibit, or non-operable mode. These pins
(2 and 15) are connected through the latched power down circuit to the motor thermostat (see B-
84470). The motor thermostat is an automatic resetting device that is used to shut the power
down from the controller should an over-temperature condition occur in the motor windings.
Connect the thermostat to a latched (locked out) power-down type circuit that requires a manual
reset. This prevents inadvertent restart of the motor when it cools down below the thermostats set
value.
2. 7 PRELIMINARY CHECKS
Once the typical amplifier system has been installed and wired in, use the following steps to
ensure proper operation before the main power is applied.

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2.7.1. CHECK AC INPUT VOLTAGE
Open the circuit breaker or remove the fuses in the secondary of the large 3-phase isolation
transformer.
Apply power with an AC voltmeter to check the 3-phase secondary line-to-line voltage. The
voltage should be approximately 230 VRMS ±10%. Remove power and close the circuit breaker or
replace the fuses in the secondary of the large 3-phase isolation transformer.
2.7.2. CHECK DC OUTPUT VOLTAGE
Do not apply the 115 VAC. Apply power to the large 3-phase transformer only. With a DC
voltmeter, monitor the 325 VDC bus bars of the power supply and amplifier units. The voltage
from the power supply should be approximately ±325 VDC. ±10%. Remove power.
2.7.3. ZERO SYSTEM RESOLVER
1. Do not remove the cover while the motor is in a hazardous location.
2. Remove power.
3. Remove the motor and cover.
4. Loosen, but do not remove the resolver servo clamp screws.
5. Rotate the outer remover of the resolver as needed for adjustment.
6. Replace end cover. All bolts must be tightened securely before applying power to the motor
or resolver.

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2. 8 3-PHASE POWER TRANS

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EB-20X Installation & Service Manual | Motor Data Package
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3. MOTOR DATA PACKAGE
Typical product features are:
UL listed explosion-proof for Class I, Groups C & D hazardous locations
Neodymium-Iron-Boron magnets
Aluminum end bells
Frameless, shaft-mounted resolver
Rugged construction
3. 1 MODEL NUMBER
EB
-
#
0
x
-
A
is the winding designation
is the stack length designation
EB
-is the prefix designating basic motor
and optional modules
E
- stands for explosion-proof U.L.
listed for Class I, Groups C & D
hazardous locations.
B
- stands for brushless motor
is the series designation - in this case 2

EB-20X Installation & Service Manual | Motor Data Package
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3. 2 EB-20X
3.2.1. EB-20X-11
114.0 mm
[4.49 in]
88.0 mm
[3.46 in]
5.00 mm
4.97 mm
[0.197 in]
8.33 mm [0.328] DIA. THRU FOUR
(4) HOLES EQ. SPACED ON
139.70 mm [5.50 IN] DIA. B. C.
3.0 mm [0.12 in]
30.00 mm
[1.18 in]
18.0 mm
[0.71 in]
+0.12
-0.007
80.00 mm
[3.150 in]
14.00 mm [0.551 in]
13.0 mm [0.51 in]
97.0 mm
[3.82 in]
SQUARE
MOTOR, RESOLVER & THERMOSTAT LEADS
LEAD EXIT 3/4-14 NPT FOR CONDUIT. SIX (6)
FULL THREADS MIN.
A 0.08 TIR
[0.003]
A 0.80 TIR
[0.003] 0.035
[0.0014]
-A-
NOTE
1-LEAD EXIT POTTED WITH CHICO COMPOUND #A5.
2-MOTOR CAN BE MOUNTED IN ANY POSITION.
3-ELECTRICAL HOOK-UP PER HD-202.
609.0 mm
[24 in] MIN.
114.0 mm
[4.49 in]
11.00 mm
10.90 mm
[0.430 in]
+0.008
-0.003
MODEL MAX.
EB-206-11 327.7 [12.90]
EB-204-11 288.0 [11.34]
EB-202-11 248.4 [9.78]
A-43083

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3. 3 EB-202
3.3.1. SPECIFICATIONS CD-26716
Specification
Tol
Symbol
Units
A
B
C
*Continuous Torque
(stall) at 40° C Ambient Nom. TC
lb-ft
13.0
12.8
12.8
N-m
17.63
17.36
17.36
Cont. Line Current
Nom.
IC
ARMS
10.0
20.0
15.0
†Max. Speed
Nom.
N max.
rpm
2000
4000
3000
*Peak Torque
Nom. TP
lb-ft
37.7
36.7
36.5
N-m
51.2
49.8
49.5
Peak Line Current
Nom.
IP
ARMS
30.5
61.4
45
129.2†Theoretical
Acceleration
Nom. ∝m rad/sec248681 48417 48945
†Horsepower
Rated
HPrtd
HP
4.4
7.7
6.1
†Speed
Rated
N rtd
rpm
2000
4000
3000
†Torque
Rated T rtd
lb-ft
11.6
10.1
10.7
N-m
15.7
13.7
14.5
Volts (line to line)
Rated
V rtd
VRMS
230
230
230
*Torque Sensitivity
± 10% KT
lb-ft / ARMS
1.302
0.629
0.854
N-m / ARMS
1.765
0.853
1.158
Back EMF (line-to-line)
± 10%
KB
V/krpm
106.8
51.6
70.0
Max. line-to-line volts
Max.
V max
VRMS
250
250
250
DC Res at 25° C
(line-to-line)
± 10% RMohms 1.548 0.382 0.674
Inductance (line-to-line)
± 30%
LM
mH
32
9.0
14.0
Time Constant
at 25° C
Mech.
Nom.
TM
ms
0.77
0.81
0.77
Elec.
Nom.
TE
ms
20.7
23.6
20.8
System Performance Curve
26614
26615
26804
*At ultimate winding temperature - for ambient data, multiply by 1.06.