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1 otor Electronic Control and System For ultimate motor protection and increased productivity For Contactor TIP! Use Overload Relay Family CA7 CA6 CA5 CEP7 CT7 CT7K CT4 CA4 CEF1 Described in this section Detailed technical and application information can be found in publication no: Tech-NK. Ask your Sprecher + Schuh representative for a copy. The Sprecher + Schuh Electronic otor Unit is a unique digital microprocessor controlled system that creates an exact thermal image of the motor. This technology permits motors to run at their full capacity while providing maximum overload protection. Options are available that provide additional protection functions including short circuit, phase reversal, underload protection, ground fault, and much more. ake full use of equipment The provides extremely accurate thermal imaging of the motor. This means that equipment can be safely run at maximum output even with fluctuating loads, brief overloads, phase unbalance, and other conditions. The precise thermal imaging takes into account the temperature rise of the stator winding and the iron mass of the motor. This two-body simulation provides accuracy during all conditions of starting, running, and stopping motors. Simple adjustments provide accurate thermal simulation for all types of motors. Avoid unplanned downtime, diagnose problems quickly The various protective and control functions can be easily programmed to trip the main (tripping) relay, a separate alarm relay, or any of five auxiliary relays. This means that a warning can be given rather than tripping the motor off line, allowing the unit to be repaired during a planned shutdown. In addition to causing output relays to trip, all parameters can be displayed on the LCD panel located on the front of the. ➊ ➐ ➋ ➏ Use with all types of motors Adjustments can be made for different motor cooling constants, such as those found on separately ventilated or liquid cooled motors. Also, the degree of inertia setting can be changed to adapt to motors with differing locked rotor time ratings. This makes the adaptable to protecting all motors under maximum loading conditions in both high and low inertia applications. The is not directly connected to the motor voltage. ecause of this feature, and the fact that it is so flexible, it can be effectively used on medium voltage motors. For these applications, the user must supply appropriate current transformers. onitor thermal usage For increased safety and productivity, an optional 4-20 milliamp analog output is available that allows monitoring of thermal usage of the motor. When used for load control, such as a feeder conveyor on a rock crusher, the loading can be continually matched to the motor s maximum temperature. This permits optimum utilization of the motor with full thermal overload protection. ➌ ➍ ➎ 42

2 otor Wide array of standard features Thermal overload Single-phase protection Phase unbalance protection Ground fault protection Stall protection Underload protection Starting time monitor Limited starts per hour Warm start limit Emergency override Available options Short circuit Ground fault leakage Stall during start ultiple RTD temperature sensor inputs PTC thermistor input Phase sequence monitor Analog output of thermal utilization (4-20mA) Wye-Delta starting control elements (Refer to photo on opposite page) ➊ Values Actual Set ➋ Select Recorded ➌ Settings Change Enter ➍ Test ➎ Reset ➏ LCD ➐ Fault Indication Flashing Steady state Select ode Indication of actual operating data Setting mode (set/vary, store parameters) Indication of statistical data Select function to view or change Change and enter commands Enable entry emorize entry Test functions (alarm, trip, trip time, etc) Reset trips Single line (two lines are alternated) LED Warning Trip Standard protection functions Thermal Overload - Under many conditions it is only necessary to set the full load amps of the motor. The time/current trip characteristics are factory set for most motors - six times FLA for 10 seconds. In addition to setting the full load amps, five other parameters can be set. This means accurate protection for all types of motors. Phase Unbalance and Single-phase - When phase voltages are unbalanced, the resulting current unbalance in the motor can be six to ten times the voltage asymmetry. These currents can quickly cause damage to the motor. The can provide warning and trip functions for current imbalances of 5 to 80%, with tripping delay adjustable from one to five seconds. High Overload and Stall - When motor driven machinery becomes blocked or jammed, unnecessary motor temperature rise and mechanical damage can result. The can provide tripping or alarm signals under these conditions. The stall current is adjustable from one to six times full load amps and the trip delay can be set from 0.1 to 5 seconds. Since the motor has not experienced a significant temperature rise, it can be restarted immediately after the blockage has been removed. Underload - Pump motors that are cooled by the medium they are pumping can be overheated in spite of underloading. Also, pumps can be damaged by cavitation or noload pumping. On other equipment, broken shafts, belts etc., can cause severe damage quickly. Very often, these motors are only accessible with difficulty, so any damage would cause long and costly repairs. The can detect underload conditions and provide warning or trip. The response level is adjustable from 0% to 100% of FLA. The time delay is adjustable from 1 to 60 seconds after the motor current has fallen below the set response level. Ground Fault - ost insulation faults in motors result in small ground currents which can rapidly rise to a very high value causing motor failure. The can be set to trip or provide warning of ground currents of % of FLA, with a time delay of 0.1 to 5 seconds. For even greater protection, the CST4 option is available which can utilize a 100/1 ratio core balance current transformer to detect ground currents as small as amps. This can provide early warning to protect against motor damage from ground faults. Other important functions Limited starts per hour - Total number of starts per hour can be limited from 1 to 10. onitor starting time - aximum starting time of the motor can be set from 1 to 240 seconds. Warm start - If desired, tripping time for a warm start can be extended to % of the cold start setting. The number of warm starts per hour can be set from 1 to 15. Emergency override - Allows the motor to be started immediately after tripping. Can be used in situations where continuing operation is more important than motor protection. rear view 43

3 otor Optional protection functions The following warning and protection functions are available options: Short Circuit - Enables fast tripping under short circuit conditions. Setting range adjustable from 4 to 12 times FLA, delay adjustment is 20 to 990 milliseconds. Stalling During Start - Provides an input connection for a zero speed switch to sense motor stall during start and trips in 1/2 second. Thermistor (PTC) Input - Allows connection of thermistors embedded in motor windings to trip under overtemperature conditions. Control Inputs - Two external input connections can be programmed to provide a variety of programmed functions such as timers, lock out of protection functions and two speed starting. Timer Functions - 0 to 240 second on and off delay timers can be initiated by external control inputs and programmed to output relays. Intuitive controls provide easy operation The is very easy to operate. Utilizing six pressure sensitive keys and the LCD, all functions, data and tests can be entered, executed, or displayed. SET VALUES Actual Recorded Values Set Communicate! Change Enter Select Settings An optional communications card is available that provides connectivity to the outside world. Utilizing the internationally recognized PROFIUS communications protocol, this provides two way communications to program the and There are three program modes: Set Values, Actual Values Recorded Values Each is selected in rotation by pressing the Values button. Once the desired mode is reached, all of the related functions can be easily viewed or set from the front panel. All LCD information is in plain English, no reference charts are needed to decipher codes. Although the can be elaborately programmed to provide specific protective functions, often the factory settings are adequate. In that case, you need only to set the full load amps (FLA) to put the unit in service. monitor real-time as well as historical data. ultiple units can be connected in a network system along with PLC s and personal computers. Additional hardware and software is required. Communications cards are also available from third party sources for other communication protocol standards. Phase Sequence - Prevents equipment damage due to accidental reversal of phases. CET 4 CET 4 CET 4 CET 4 CET 4 Up to 30 s can be connected together Phase Failure (voltage) - Standard phase failure feature monitors phase currents. This feature monitors phase voltage and will not allow an attempted start during a phase failure. Wye-Delta Starting - Provides the signal to switch from wye to delta by monitoring motor current. RTD Temperature Sensors - Connect up to 6 resistance temperature detectors (RTD s) for continuous monitoring of stator or bearing temperature and 1 RTD for monitoring of coolant or ambient temperature. Can be programmed for warning and/or trip. No.1 No.2 No.3 No.4 Ideal companion for Softstarters Solid state reduced voltage starters on large HP motors often have special requirements for overload protection. The can be a perfect solution because its trip characteristics can be matched exactly to the motor, equipment, and starting parameters. In addi- tion, the numerous protective and warning features of the can provide an added degree of safety and reliability. Features such as ground fault, phase failure, and the ability to connect external RTD s embedded in the motor can be especially important. See Softstarters in this catalog for detailed information. 44

4 otor Electronic Control and System Type Electronic Unit, Options & Accessories Price Description Catalog Number (or Suffix) (or Adder) Electronic Unit For connection to converter module CWE4 Functions of basic unit include: Thermal overload protection Single phase protection Stall protection Underload protection Ground fault Starting time monitor Limited starts per hour For flush mounting in panel ➊ - -V50/60 ➋ 2544 Options ➌ Functions of CST4 option: Short circuit Ground fault leakage (requires core balance C.T.) Stall during start Thermistor input (PTC) Analog output for thermal utilization -S 657 Functions of CLV4 option: Wye-Delta starting Single phase protection (motor supply) Phase sequence -L ➍ 445 Functions of CV4 option: PT 100 inputs #1 #6 (stator/bearings) PT 100 input #7 (ambient temperature) - ➍ 637 Functions of CP4 option: PROFIUS communications interface -P 828 Accessories Indication instrument for motor temperature rise CUD4 445 ase ounting Frame CP4 198 PC Option Set (communications card and software for a PC) CPC4 891 Core alance Transformer - ratio 100/1 CTO4 540 For accurate sensing of ground currents from 0.5 to 10 Amps CWE Converter odules and Accessories ➏ Current Range Primary Connections Catalog Number Price Amps ➐ Saddle clamp, up to 12 AWG (4mm 2 ) wire CWE Amps ➐ Saddle clamp, up to 12 AWG (4mm 2 ) wire CWE Amps Feed through window opening (19mm) or bus bars (20 x 4mm) CWE4-180 ➑ Amps us bars (25 x 8mm) CWE Accessories Conductor ars for CWE4-180 Universal connections for separate mounting- Terminals: 8 (4 x 16 x 100 mm); Rated to 125A CWE4-V 60 ➒ Universal connections for separate mounting - Terminals: 8 (4 x 20 x 117 mm); Rated to 180A CWE4-V2 88 ➒ For mounting to CA6-85 and CA6-105 contactors - Terminals: bottom 6 / top ø7; Rated to 125A CWE4-VS 60 ➒ For mounting to CA6-140 and CA6-170 contactors - Terminals: bottom 8 / top ø8.5; Rated to 180A CWE4-VS2 120 ➒ Ordering Example Specification: Electronic otor Unit with CST4, CLV4 and CP4 options and a supply voltage of 240VAC/60Hz. For a 100 HP motor 460VAC/60Hz (120 FLA). Communications with PC. ➊ For base mounting, order ase ounting Frame CP4 separately. ➋ Replace in catalog number with AC supply voltage code: 120, 240, or 440, or DC code: 24VDC, or 48VDC. Other voltages consult factory ➌ All options must be factory installed. ➍ The CLV4 option and CV4 option occupy the same slot, therefore only one can be installed. ➎ must have the CP4 option to utilize this accessory. Ordering Specification: One (1) -230V50/60-S-L-P (Electronic Unit) One (1) CPC4 (PC Option Set) One (1) CWE4-180 (Converter odule) One (1) CWE4-V2 (Conductor ar with universal connections) ➏ ounts on DIN-rail (or base mount) inside panel behind, or directly to contactor. ➐ Up to 630 Amps when using primary current transformers. ➑ Order bus bars for CWE4-180 separately (see CWE4 Accessories). ➒ Three bus bars per package. Price per package. 45

5 Technical Information Electronic Control and System otor Overview of Functions Protective Functions Function Trip Relay Factory Setting Factory Delay Factory Selection Factory Setting range Setting Range Setting Choices Setting ➊ asic Unit Thermal overload On R R Phase unbalance/failure (% of FLA) On 5-80 % 35 % 1-5 s 2.5 s All R Stalling/high overload (mulitple of FLA) On 1-6 x FLA 2.4 x FLA s 0.5 s All R Underload (% of FLA) Off % 75 % 1-60 s 10 s All R Underload delayed enable On s 0 s - - Ground fault (% of FLA) On % 50 % s 0.5 s All R Starting time monitor Off s 10 s All R Limited starts per hour Off All R Option CST4 Short Circuit (% of FLA) Off 4-12 x FLA 10 x FLA ms 50 ms #1 #1 Ground Fault (core balance c.t.) Off ma 5 ma s 0.5 s All R Stalling during start (external input) Off All R Thermistor input (PTC) Off ms R R Option CLV4 Phase sequence - motor supply Off s All R Phase failure - motor supply Off s All R Option CV4 RTD temperature detectors #1 - #6 (stator, bearings) Off o C 50 o C - <8 s R, AL, #1-3R RTD temperature detector #7 (ambient) Off Warning Functions asic unit Thermal utilization (% of thermal limit of motor) Off % 75 % - - AL, #1-5 AL Phase unbalance (% of FLA) Off 5-80 % 20 % - - AL, #1-5 AL Stall/high overload (% of FLA) Off 1-6 x FLA 2 x FLA - - AL, #1-5 AL Underload (% of FLA) Off % 75 % - - AL, #1-5 AL Option CST4 Ground fault (core balance c.t.) Off ma 5 ma - - AL, #1-5 AL Option CV4 RTD temperature detectors #1 - #6 (stator, bearings) Off o C 50 o C - - AL, #1-5 AL Time/Current Characteristic t A I e a b C Tripping time in seconds Rated service current of the motor = I ef Locked rotor current; setting range I A = I e Inertia: Setting range with appropriate set locked rotor current t IA = sec The setting of I A /ti A must be outside this range (e.g. when I A = 6 x FLA, ti A must be 100s) C ➊ Only one relay per fuction can be selected: R = ain Relay, AL = Alarm Relay, Auxiliary Relays #1 - #5. 46

6 otor Technical Information Electronic Control and System Overview of Functions Control Functions Function Trip Relay Factory Setting Factory Delay Factory Selection Factory Setting range Setting Range Setting Choices Setting ➊ asic Unit Warm start (% of cold trip) Off % 70% 4-60min 60min - - Emergency override of thermal trip Off Connect terminals Y11 and Y Option CST4 Analog output of thermal utilization On 4-20mA Control Input #1: (24 VAC/DC; 8mA) Select one of the following two functions: Function #1 - timer function Pickup Delay Off s 1s - #2 Dropout delay Off s 2s - #2 Function #2 - disable protective functions Phase unbalance/failure Off Stall/high overload` Off Ground fault Off Short circuit Off Underload Off Limit starts per hour Off Thermistor (PTC) Off RTD temperature detectors Off Control Input #2: (24 VAC/DC; 8mA) Select one of the following three functions: Function #1 - timer function Pickup Delay Off s 1s - #3 Dropout delay Off s 2s - #3 Function #2 - set second current rating (2 speed motors) Thermal overload Off A 20A Function #2 - disable protective functions Phase unbalance/failure Off Stall/high overload` Off Ground fault Off Short circuit Off Underload Off Limit starts per hour Off Thermistor (PTC) Off Option CLV4 Wye-Delta starting Off x FLA 1-240s 10s

7 Technical Information Electronic Control and System Technical Information otor Rated Operating Voltage UL/CSA With CWE4-2.5 current module [V] 240V With CWE4-20 and higher current module [V] 600V IEC, SEV, VE 0660 With CWE4-2.5 current module [V] 400V With CWE4-20 current module [V] 660V With CWE4-180 & CWE4-630 current module [V] 1000V Supply Voltage AC - 50/60Hz [V] 110V, 220,- 240V, V, 440V DC [V] 24-48V Permissible Fluctuation AC [%] 0.85 to 1.10 of rated supply voltage DC [%] 0.80 to 1.10 of rated supply voltage Power Consumption AC [VA] 13VA DC [watts] 10 watt maximum Control Circuits ain Relay (R) - 1NO & 1NC contact, galvanically separated Nominal voltage rating - UL/CSA [V] 240VAC Nominal voltage rating - IEC 947 [V] 400VAC Current Ratings UL/CSA pilot duty, 240V [A] 4 Amps 24V 48V 60V 110V 220/230V 240V 380V 415V 440V AC Rated Service Current 4A 4A 4A 4A 3A 3A 2A 2A 1.5A DC Rated Service Current without protection network, L/R=35ms 0.6A 0.3A 0.25A 0.15A 0.05A 0.05A with protection network, L/R=100ms 0.6A 0.6A 0.5A 0.5A 0.5A 0.5A aximum permissible switching current 44A 44A 44A 44A 33A 33A 22A 22A 16.5 Alarm Relay & Auxiliary Relays #1, #4, #5-1NO contact Nominal voltage rating - UL/CSA [V] 240VAC Nominal voltage rating - IEC 947 [V] 400VAC Continuous thermal current [A] 4A aximum permissible switching voltage [V] 400VAC, 30VDC Nominal service current - resistive [A] 4A at 250VAC or 30VDC Nominal service current - inductive, 0.4p.f., L/R=7ms [A] 2A at 250VAC or 30VDC aximum switching power, resistive load 1250VA, 150W aximum switching power, inductive load, 0.4p.f., L/R-7ms 500VA, 60W Auxiliary Relays #2, #3-1 N.O contact Nominal voltage rating [V] 50VAC, 30VDC Continuous thermal current [A] 4A aximum permissible switching voltage [V] 48VAC, 30VDC aximum switching power, resistive [W] 150W aximum switching power, inductive, 0.4p.f., L/R=7ms [W] 60W Control inputs #1, #2 Nominal voltage rating [V] 24VAC, 24VDC Temperature Normal operation [ C] -5 o C to +60 o C For transport [ C] -40 o C to +60 o C For storage [ C] -40 o C to +60 o C Climate Humid heat IEC o 92% relative humidity (56 days) Alternating climate (21 cycles) IEC o 80% relative humidity/40 o 92% relative humidity Degree of protection, enclosed in panel IP 65 Terminals IP 20 Resistance to vibration - IEC Resistance to shock - IEC Hz, 3g 30g shock for 18ms, semisinuisoidal in x, y, z directions 48

8 90 otor Technical Information Electronic Control and System Technical Information (continued) Electrical Tests otor Circuit Impulse Test - per IEC with CWE4-2.5 converter module [kv] 2.5 kv with CWE4-20 converter module [kv] 6 kv with CWE4-180 or CWE4-630 converter module [kv] 8 kv Control Circuit Impulse Test per IEC ain Relay (R), phase Sequence protection L1, L2, L3, Alarm Relay (AR), Auxiliary Relay #1, #2, #3 and between control circuits and all other circuits ➊ 4 kv Core balance current transformer k, l, Control Inputs #1, #2, Auxiliary Relay #2, #3 [kv] 2.5 kv EC Standards Noise emission EN and EN Noise proof EN and EN Terminals Power Terminals CWE4-2.5, CWE4-20 [AWG] One #20 to #12 AWG or two #20 to #14 AWG [mm 2 ] (metric: one 4 mm 2 or two 2.5 mm 2 ) CWE mm opening for wire pass through or 20/16 x 4 mm bus bar CWE4-630 bus bar 25x8 mm Control Terminals Wire size, UL [AWG] #22 - #14 AWG Wire size, VDE [mm 2 ] 1.5 mm 2, nominal Cross section range - single wire [mm 2 ] mm 2 Cross section range - two wires [mm 2 ] mm 2 External Current Transformers When using the as a secondary relay with current transformers, use CWE4-2.5 or CWE4-20 Converter odules Recommended External C.T. Specifications: inimum nominal service voltage Same as motor inimum rated primary current Same as motor Rated secondary current [A] 1A or 5A urden +CWE CWE4-20 Power consumption at rated current [VA] 0.1 VA/phase 0.4VA/phase Thermal limit current continuous [A] 3A 24A Thermal limit current 1 second [A] 250A 600A Frequency of input current 50/60Hz 50/60Hz Weights with power supply module [g] 1000g Option CP4 [g] 125g Options CST4, CLV4, CV4 [g] 90g ounting Position ➊ The measuring inputs for RTD and PTC inputs, the 4-20ma output, and the RS485 interface are not isolated from one another. 49

9 Technical Information Electronic Control and System Wiring Diagrams INCOING POWER L1 L2 L3 INCOING POWER L1 L2 L3 L1 L2 L3 L1 L2 L3 FIG. 1 FIG. 1 (OPTIONAL) otor H1 H4 H1 H4 CO. FUS./NON FUS. DISC. SEE FIG. 1 CO. CP SEE FIG. 1 1L1 3L2 5L3 CWE 4 2T1 4T2 6T3 T1 T2 T3 TR CET 4 T1 T2 TR T3 3 CT's 1L1 3L2 5L3 CWE 4 2T1 4T2 6T3 CET 4 Variants: - Two-phase current evaluation - Two-phase current evaluation and earth-fault protectio with core balance transformer Converter module CWE CWE 4-20 ain current transformer...a / 5 A or...a / 1 A For selection see <<Technical Data>> NON COINATION NON COINATION LI(XF) 230V 480V 23 LINE HI H4 HI H4 LI(XF) STOP OFF HAND AUTO JUPER H1&H3 H2&H4 H2&H3 START START-STOP PUSHUTTONS RCD HAND-OFF-AUTO SELECTOR SWITCH H1 H3 H2 H4 CCT FU 230/480V 24/120/208V (OPTIONAL) XF X1 X2 X1 X1 RUN R A1 A2 (A) () A RUN R A1 A2 (A) () A X2 TRIPPED X2 TRIPPED A1 A1 CET 4 C CET 4 C A2 A2 L2(X2) L2(X2) Terminals asic Unit CET 4 Supply Emerg. Start Remote Reset Remote Reset Alarm Relay AL A1 - A2 + Y11 Y12 Y13 Y21 Y ain Relay R Non-Fail-Safe Fail-Safe NOTES: 1). CONTACTS ARE SHOWN IN THE READY STATE WITH CONNECTED SUPPLY VOLTAGE PRESENT. (FACTORY SETTING: FAIL-SAFE ODE) 2). RCD: STANDS FOR REOTE CONTROL DEVICE Y CUSTOER. 3). X2 TERINAL GROUNDED AS STANDARD, REOVE IF NOT REQUIRED

10 otor Technical Information Electronic Control and System Wiring Diagrams Terminals asic Unit CET 4 Option CST 4 Supply: Emerg. Start Disable Settings Remote Reset A1 - A2 + Y11 Y12 Y13 Y21 Y22 Supply AC or DC No fuse required Emergency override of thermal trip (emergency start): Pushbutton, key switch Disable setting: Wire jumper, switch, key switch Remote Reset: Pushbutton, key switch A ma ( ohm) Aux Relay # 1 Aux Relay # 2 Aux Relay # 3 I+ I- Auxiliary relay # 1 IEC 400 VAC / 125 VDC UL / CSA 240 VAC / 125 VDC Auxiliary relay # 2 50 VAC / 30 VDC Auxiliary relay # 3 50 VAC / 30 VDC Analogue output to determine the thermal utilization of the motor (indicating instruments, PLC input, recorder) Alarm relay AL IEC 400 VAC / 125 VDC UL / CSA 240 VAC / 125 VDC Output relay R in fail-safe connection (factory setting) IEC UL / CSA 400 VAC / 125 VDC 240 VAC / 125 VDC Control Input # 1 Control Y41 Control input # 2 Input # 2 Y42 24 VAC/DC PTC Y31 Y32 T1 T2 Control input # 1 24 VAC/DC Thermistor overtemperature protection max. 6 PTC wired in series easuring lead: Cross-section [mm^2] 0.5 ax. length [m] External Internal Output relay R in non-fail-safe connection IEC 400 VAC / 125 VDC UL / CSA 240 VAC / 125 VDC L1 L2 L3 External k l Core balance transformer ma Internal Option CLV 4 F Aux Relay # 4 Aux Relay # 5 L1 L2 L3 Auxiliary relay # 4 IEC 400 VAC / 125 VDC UL / CSA 240 VAC / 125 VDC Auxiliary relay # 5 IEC 400 VAC / 125 VDC UL / CSA 240 VAC / 125 VDC Phase sequence protection Phase failure protection IEC / SEV VAC UL / CSA VAC Option CV 4 1T1 PT 100 #1 1T3 1T2 2T1 PT 100 #2 2T3 2T2 3T1 PT 100 #3 3T3 3T2 PT 100 inputs #1...#6 for monitoring the temperature of the stator winding and motor bearings. 4T CWE 4 PT 100 #4 4T3 4T ~ 6 PT 100 #5 5T1 5T3 5T2 PT 100 inputs #7 for indication of and allowance for the coolant / ambient temperature (cooling air) in the thermal facsimile 6T CWE ~ T F External L1 L2 L3 Supply voltage > 400 VAC (UL / CSA 240 VAC) with voltage transformer Internal PT 100 #6 PT 100 #7 External 6T3 6T2 7T1 If the PT 100 inputs #7 is not connected, then a resistor of 7T3 120-ohm must be connected 7T2 instead the sensor (T1-T3 must be shortend). Internal easuring Leads Up to 10 m: no screening/shielding (separated from power c Longer leads: screened/shielded - separately screened -> connect screen to T2 - common screening -> connect screen to xt2 51

11 Dimensions Electronic Control and System Electronic otor Protector and CP4 ase ounting Frame Dimensions are in millimeters Dimensions not intended for manufacturing purposes max. 6 mm 10 max ø 6.5 otor sprecher+ schuh Alarm Trip Actual Test Values Select Settings Reset Recordet Set Change Enter CET max. 159 CWE4 Converter odule ø d ø e d3 b b d3 b (panel mounting shown) Side view CP4 ase ounting Frame ø e ø d d1 1) d1 e2 d2 a e2 c1 c 2) e2 d2 a e2 ø e1 c1 c CWE4-2.5 CWE4-180 CWE4-630 Type a b c c1 ød d1 d2 d3 øe øe1 e2 CWE x4mm CWE x4mm CWE ➊ ➊ 38.5 CWE ➊ See us ars in CWE Converter odule Accessories section (page 45). 52