Wiring. Omron L7

2

Wiring

This chapter describes the terminals, main circuit terminal connections, main circuit terminal wiring specifications, control circuit terminals, and control circuit wiring specifications.

Connection Diagram ...........................................................2-2

Terminal Block Configuration..............................................2-4

Wiring Main Circuit Terminals .............................................2-5

Wiring Control Circuit Terminals .......................................2-17

EN81-1 Conform Wiring with One Motor Contactor..........2-21

Wiring Check.....................................................................2-23

Installing and Wiring Option Cards ...................................2-24

2

Connection Diagram

The connection diagram of the Inverter is shown in

Fig 2.1

.

When using the Digital Operator, the motor can be operated by wiring only the main circuits.

L1

3-phase power

380 to 480V

50/60Hz

L2

L3

PE

Magnetic

Contactor

Line

Filter

DC reactor to improve input power factor (optional)

Braking Resistor unit (optional)

Link

(+1)

L1(R)

L2(S)

(+2) (-)

B1

L3(T)

B2

U/T1

V/T2

W/T3

1

Motor

IM/PM

Multi function

Inputs

(Factory setting)

Forward run/stop

Reverse run/stop

Nominal Speed

Inspection Run

Intermediate Speed

Leveling Speed

Not used

Hardware Baseblock (note 3)

S1

S2

S3

S4

S5

S6

S7

BB

BB1

TA1

PG-X2

(Optional)

P

P

Voltage adjustment

Analog input

(Speed reference)

2kOhm

2kOhm

0 to 10 V

P

Input option cards

+24V, 8mA

SC

IP24V (24V)

CN5(NPN setting)

E(G)

+V Analog input power supply +15V, 20mA

A1

Master speed reference 0 to 10V

AC

0 V

2CN

PG

TA3

TA2

MA

MB

MC

A Pulse

B Pulse

Z Pulse

2

3

Pulse Monitor Output

RS-422

(100m or less)

Fault contact output

250VAC, max. 1A

30VDC, max. 1A

M1

M2

Brake Command

(Factory setting)

M3

M4

Contactor Control

(Factory setting)

Multi-function contact output

250VAC, max. 1A

30VDC, max. 1A

M5

M6

Inverter Ready

(Factory setting)

Optional control power supply input for Rescue

Operation to terminal B1 to terminal -

P0

N0

Control Power

Supply Input

3CN

Output option cards

Note:

1. Main circuit terminals are indicatied with double circles and

control circuit terminals are indicatied with a single circles

2. The CN5 factory setting is NPN

3. To enable the inverter both inputs, BB and BB1 must be closed. If only one of the inputs is closed, “BB” will be displayed in the operator panel and the inverter will not start.

1

Shielded wires

Twisted-pair wires

2

Fig 2.1 Connection Diagram (Model CIMR-L7Z43P7 Shown Above)

2-

2

‹

Circuit Descriptions

Refer to the numbers indicated in

Fig 2.1

.

1

These circuits are hazardous and are separated from accessible surfaces by protective separation

2

These circuits are separated from all other circuits by protective separation consisting of double and reinforced insulation. These circuits may be interconnected with SELV

*

(or equivalent) or non-

SELV

*

circuits, but not both.

3

Inverters supplied by a four-wire-system source (neutral grounded)

These circuits are SELV

*

circuits and are separated from all other circuits by protective separation consisting of double and reinforced insulation. These circuits may only be interconnected with other SELV

*

(or equivalent) circuits.

Inverters supplied by a three-wire-system source (ungrounded or corner grounded)

These circuits are not separated from hazardous circuits other circuits by protective separation, but only with basic insulation. These circuits must not be interconnected with any circuits which are accessible, unless they are isolated from accessible circuits by supplemental insulation

* SELV (Safety Extra Low Voltage) circuits have no direct connection to the primary power and are supplied by a transformer or equivalent isolating device. The circuits are designed and protected, so that, under normal and single fault condition, its voltage does not exceed a safe value.

(See IEC 61010)

1. Control circuit terminals are arranged as shown below.

IMPORTANT

E(G)

SC SC SC BB +V A1 AC

S1 S2 S3 S4 S5 S6 S7 BB1

M5 M6

M3 M4

MA MB MC

M1

M2

E(G)

2. The output current capability of the +V terminal is 20 mA.

3. Main circuit terminals are indicated with double circles and control circuit terminals are indicated with single circles.

4. The wiring of the digital inputs S1 to S7 and BB is shown for the connection of contacts or NPN transistors (0V common and sinking mode). This is the default setting.

For the connection of PNP transistors or for using a 24V external power supply, refer to

Table 2.10

.

5. A DC reactor is an option only for Inverters of 18.5 kW or less. Remove the short circuit bar when connecting a DC reactor.

2

2-

3

2

Terminal Block Configuration

The terminal arrangements are shown in

Fig 2.2

and

Fig 2.3

.

Control circuit terminals

Control circuit terminals

Main circuit terminals

Charge indicator

Ground terminal

Fig 2.2 Terminal Arrangement (200 V/400 V Class Inverter of 3.7 kW)

Charge indicator

Main circuit terminals

Ground terminals

Fig 2.3 Terminal Arrangement (200 V/400 V Class Inverter of 22 kW or more)

2-

4

Wiring Main Circuit Terminals

‹

Applicable Wire Sizes and Crimp Terminals

Select the appropriate wires and crimp terminals using

Table 2.1

to

Table 2.3

. Refer to instruction manual

TOE-C726-2 for wire sizes for Braking Resistor Units and Braking Units.

„

Wire Sizes

Inverter

Model

CIMR†

L7Z23P7

Table 2.1 200 V Class Wire Sizes

Terminal Symbol

Terminal

Screws

Tightening

Torque

(N•m)

Possible

Wire Sizes mm

2

(AWG)

Recommended

Wire Size

*1 mm

2

(AWG)

R/L1, S/L2, T/L3, , 1, 2, B1, B2,

U/T1, V/T2, W/T3, PO, NO

M4 1.2 to 1.5

4

(12 to 10)

4

(12)

Wire Type

L7Z25P5

R/L1, S/L2, T/L3, , 1, 2, B1, B2,

U/T1, V/T2, W/T3, PO, NO

M4 1.2 to 1.5

6

(10)

L7Z27P5

R/L1, S/L2, T/L3, , 1, 2, B1, B2,

U/T1, V/T2, W/T3, PO, NO

M5 2.5

10

(8 to 6)

L7Z2011

R/L1, S/L2, T/L3, , 1, 2, B1, B2,

U/T1, V/T2, W/T3, PO, NO

M5

L7Z2015

R/L1, S/L2, T/L3, , 1, 2, U/T1, V/T2,

W/T3, NO

B1, B2, PO

M6

M5

M6

L7Z2018

R/L1, S/L2, T/L3, , 1, 2, U/T1, V/T2,

W/T3, NO

B1, B2, PO

M8

M5

M6

L7Z2022

R/L1, S/L2, T/L3, , 1, U/T1, V/T2,

W/T3, R1/L11, S1/L21, T1/L31, NO

3, PO

M8

M6

M8

L7Z2030

R/L1, S/L2, T/L3, , 1 U/T1,

V/T2, W/T3, R1/L11, S1/L21, T1/L31, NO

3, PO

M8

M6

M8

2.5

4.0 to 5.0

2.5

4.0 to 5.0

9.0 to 10.0

2.5

4.0 to 5.0

9.0 to 10.0

4.0 to 5.0

9.0 to 10.0

9.0 to 10.0

4.0 to 5.0

9.0 to 10.0

16

(6 to 4)

25 to 35

(3 to 1)

10 to 16

(8 to 4)

25 to 35

(4 to 2)

50

(1 to 1/0)

10 to 16

(8 to 4)

25 to 35

(4 to 2)

25

(4 to 2)

10

(8 to 6)

25

(4)

25 to 35

(3 to 2)

10 to 16

(8 to 6)

25

(4)

6

(10)

10

(8)

16

(6)

-

25

(4)

25

(3)

-

25

(4)

50

(1)

25

(4)

-

25

(4)

25

(3)

-

25

(4)

Power cables, e.g., 600 V vinyl power cables

2

2-

5

2

Inverter

Model

CIMR†

L7Z2037

L7Z2045

L7Z2055

R/L1, S/L2, T/L3, , 1 U/T1,

V/T2, W/T3, R1/L11, S1/L21, T1/L31, NO

3, PO r/l1,

Δ/l2

R/L1, S/L2, T/L3, , 1 U/T1,

V/T2, W/T3, R1/L11, S1/L21, T1/L31, NO

3, PO r/l1,

Δ/l2

Terminal Symbol

R/L1, S/L2, T/L3, , 1, NO

U/T1, V/T2, W/T3, R1/L11, S1/L21, T1/L31

3, PO r/l1, Δ/l2

Terminal

Screws

Tightening

Torque

(N•m)

M10

M8

M10

M4

M10

M8

M10

M4

M12

M10

M8

M10

M4

17.6 to 22.5

8.8 to 10.8

17.6 to 22.5

1.3 to 1.4

17.6 to 22.5

8.8 to 10.8

17.6 to 22.5

1.3 to 1.4

31.4 to 39.2

17.6 to 22.5

8.8 to 10.8

17.6 to 22.5

1.3 to 1.4

Possible

Wire Sizes mm

2

(AWG)

70 to 95

(2/0 to 4/0)

Recommended

Wire Size

*1 mm

2

(AWG)

70

(2/0)

6 to 16

(10 to 4)

35 to 70

(2 to 2/0)

0.5 to 4

(20 to 10)

95

(3/0 to 4/0)

6 to 16

(10 to 4)

50 to 70

(1 to 2/0)

0.5 to 4

(20 to 10)

50 to 95

(1/0 to 4/0)

90

(4/0)

6 to 70

(10 to 2/0)

35 to 95

(3 to 4/0)

0.5 to 4

(20 to 10)

–

35

(2)

1.5

(16)

95

(3/0)

Wire Type

–

50

(1)

1.5

(16)

50 × 2P

(1/0

× 2P)

90

(4/0)

Power cables, e.g., 600 V vinyl power cables

–

50

(1/0)

1.5

(16)

*1. The wire size is valid for PVC insulated copper cable, 30° ambient temperature

Inverter

Model

CIMR†

L7Z43P7

L7Z44P0

L7Z45P5

L7Z47P5

L7Z4011

Table 2.2 400 V Class Wire Sizes

Terminal Symbol

Terminal

Screws

Tightening

Torque

(N•m)

R/L1, S/L2, T/L3, , 1, 2, B1, B2,

U/T1, V/T2, W/T3, NO, PO

R/L1, S/L2, T/L3, , 1, 2, B1, B2,

U/T1, V/T2, W/T3, NO, PO

R/L1, S/L2, T/L3, , 1, 2, B1, B2,

U/T1, V/T2, W/T3, NO, PO

R/L1, S/L2, T/L3, , 1, 2, B1, B2,

U/T1, V/T2, W/T3, NO, PO

R/L1, S/L2, T/L3, , 1, 2, B1, B2,

U/T1, V/T2, W/T3, NO, PO

M4

M4

M4

M4

M5

1.2 to 1.5

1.2 to 1.5

1.2 to 1.5

1.2 to 1.5

2.5

Possible

Wire Sizes mm

2

(AWG)

Recommended

Wire Size

*1 mm

2

(AWG)

2.5 to 4

(14 to 10)

4

(12)

2.5

(14)

2.5 to 4

(14 to 10)

4

(12)

2.5

(14)

4

(12 to 10)

2.5 to 4

(14 to 10)

6 to 10

(10 to 6)

6 to 10

(10 to 6)

4

(12)

2.5

(14)

6

(10)

4

(12)

10

(8)

6

(10)

Wire Type

Power cables, e.g., 600 V vinyl power cables

2-

6

Inverter

Model

CIMR†

L7Z4015

L7Z4018

L7Z4022

L7Z4030

L7Z4037

L7Z4045

L7Z4055

R/L1, S/L2, T/L3, , 1, 2, B1, B2,

U/T1, V/T2, W/T3, NO, PO

R/L1, S/L2, T/L3, , 1, 2, U/T1, V/T2,

W/T3, NO

B1, B2, PO

R/L1, S/L2, T/L3, , 1, 3, U/T1, V/T2,

W/T3, R1/L11, S1/L21, T1/L31, NO, PO

R/L1, S/L2, T/L3, , 1, 3, U/T1, V/T2,

W/T3, R1/L11, S1/L21, T1/L31, NO, PO

R/L1, S/L2, T/L3, , 1, U/T1, V/T2, W/T3,

R1/L11, S1/L21, T1/L31, NO

3, PO

R/L1, S/L2, T/L3, , 1, U/T1, V/T2, W/T3,

R1/L11, S1/L21, T1/L31, NO

3, PO

R/L1, S/L2, T/L3, , 1, U/T1, V/T2,

W/T3, R1/L11, S1/L21, T1/L31, NO

3, PO

Terminal Symbol

Terminal

Screws

M5

M5

(M6)

M6

M5

M6

M6

M8

M6

M8

M8

M6

M8

M8

M6

M8

M8

M6

M8

*1. The wire size is valid for PVC insulated copper cable, 30° ambient temperature

Tightening

Torque

(N•m)

2.5

2.5

(4.0 to 5.0)

4.0 to 5.0

2.5

4.0 to 5.0

4.0 to 5.0

9.0 to 10.0

4.0 to 5.0

9.0 to 10.0

9.0 to 10.0

4.0 to 5.0

9.0 to 10.0

9.0 to 10.0

4.0 to 5.0

9.0 to 10.0

9.0 to 10.0

4.0 to 5.0

9.0 to 10.0

10 to 16

(8 to 4)

25 to 35

(4 to 2)

35 to 50

(2 to 1/0)

10 to 16

(8 to 4)

25 to 35

(4 to 2)

50

(1 to 1/0)

10 to 16

(8 to 4)

25 to 35

(4 to 2)

Possible

Wire Sizes mm

2

(AWG)

Recommended

Wire Size

*1 mm

2

(AWG)

10

(8 to 6)

10

(8)

6 to 10

(10 to 6)

10 to 35

(8 to 2)

10

(8)

10 to 25

(8 to 4)

16

(6 to 4)

16 to 35

(6 to 2)

25

(4)

25 to 35

(4 to 2)

25 to 50

(4 to 1/0)

25

(4)

25

(4)

35

(2)

16

(6)

16

(6)

6

(10)

10

(8)

10

(8)

10

(8)

Wire Type

Power cables, e.g., 600 V vinyl power cables

-

25

(4)

50

(1)

25

(4)

35

(2)

-

-

25

(4)

2

2-

7

2

„

Recommended Crimp Terminal Sizes (Ring type)

Table 2.3 Crimp Terminal Sizes

Wire Cross Section (mm

2

)

Terminal Screws

0.5 - 1.0

1.5

2.5

4

6

10

16

25

35

50

70

95

M5

M10

M12

M8

M10

M12

M10

M12

M6

M8

M10

M8

M6

M8

M6

M8

M4

M5

M6

M8

M4

M4

M4

M4

M5

M6

M8

A

620/4

630/4

630/4

650/4

650/4

101 R/5

101 R/6

101 R/8

102 R/5

102 R/6

102 R/8

103 R/5

*1

103 R/6

103 R/8

104 R/6

104 R/8

105 R/6

105 R/8

105 R/10

106 R/8

106 R/10

106 R/12

107 R/8

107 R/10

107 R/12

108 R/10

108 R/12

Crimp Terminal Type

Klauke y

B

1620/4

1620/4

1630/4

1650/4

1650/4

1650/5

1650/6

1650/8

1652/5

1652/6

1652/8

1653/5

1656/10

1656/12

1657/8

1657/10

1657/12

1658/10

1658/12

1653/6

1653/8

1654/6

1654/8

1655/6

1655/8

1655/10

1656/8

*1. Not applicable for L7Z2011

Select the wire size for the main circuit so that line voltage drop is within 2% of the rated voltage.

Line voltage drop is calculated as follows:

JST

GS5-16

GS6-16

GS8-16

GS6-25

GS8-25

GS6-35

GS8-35

GS10-35

GS8-50

GS10-50

GS12-50

GS8-70

GS10-70

GS12-70

GS10-95

GS12-95

GS4-1

GS4-1

GS4-2.5

GS4-6

GS4-6

GS5-6

GS6-6

GS6-8

GS5-10

GS6-10

GS8-10

IMPORTANT

Line voltage drop (V) = 3 x wire resistance (

Ω

/km) x wire length (m) x current (A) x 10

-3

2-

8

‹

Main Circuit Terminal Functions

Main circuit terminal functions are summarized according to terminal symbols in

Table 2.4

. Wire the terminals correctly for the desired purposes.

Purpose

Main circuit power input

Inverter outputs

Table 2.4 Main Circuit Terminal Functions (200 V Class and 400 V Class)

Terminal Symbol

R/L1, S/L2, T/L3

R1/L11, S1/L21, T1/L31

U/T1, V/T2, W/T3

Model: CIMR-L7Z ††††

200 V Class 400 V Class

23P7 to 2055 43P7 to 4055

2022 to 2055

23P7 to 2055

4022 to 4055

43P7 to 4055

DC bus terminals

1,

Braking Resistor Unit connection B1, B2

DC reactor connection

1, 2

Braking Unit connection

3,

Ground

Control Power Supply PO, NO

23P7 to 2055

23P7 to 2018

23P7 to 2018

2022 to 2055

23P7 to 2055

23P7 to 2055

43P7 to 4055

43P7 to 4018

43P7 to 4018

4022 to 4055

43P7 to 4055

43P7 to 4055

2

2-

9

2

‹

Main Circuit Configurations

The main circuit configurations of the Inverter are shown in

Table 2.5

.

B2

B1

+ 1

+

2

R/L1

S/L2

T/L3

-

Table 2.5 Inverter Main Circuit Configurations

200 V Class 400 V Class

CIMR - L7Z23P7 to 2018

CIMR - L7Z43P7 to 4018

U/T1

V/T2

W/T3

B2

B1

+

1

+ 2

R/L1

S/L2

T/L3

-

Power

Supply

Control

Circuit

Power

Supply

Control

Circuit

N0 P0

N0 P0

CIMR - L7Z2022,2030

+ 3

CIMR - L7Z4022 to 4055

+ 3

+ 1

R/L1

S/L2

T/L3

R1/L11

S1/L21

T1/L31

-

U/T1

V/T2

W/T3

+ 1

R/L1

S/L2

T/L3

R1/L11

S1/L21

T1/L31

-

N0

Power

Supply

P0

Control

Circuit

CIMR - L7Z2037 to 2055

+ 3

N0

Power

Supply

P0

Control

Circuit

+ 1

R/L1

S/L2

T/L3

R1/L11

S1/L21

T1/L31

r/l1

Δ 200/

l200

U/T1

V/T2

W/T3

N0

Power

Supply

P0

Control

Circuit

Note: Consult your Omron-Yaskawa Motion Control representative for using 12-phase rectification.

U/T1

V/T2

W/T3

U/T1

V/T2

W/T3

2-

10

‹

Standard Connection Diagrams

Standard Inverter connection diagrams are shown in

Fig 2.4

. These are the same for both 200 V Class and

400 V Class Inverters. The connections depend on the Inverter capacity.

„

CIMR-L7Z23P7 to 2018 and 43P7 to 4018

3 Phase 200VAC or

400VAC

DC reactor

(optional)

Braking

Resistor

(optional)

+ 1 + 2

B1 B2

R/L1

S/L2

T/L3

U/T1

V/T2

W/T3

M

„

CIMR-L7Z2022, 2030, and 4022 to 4055

Braking

Resistor (optional)

CDBR Braking

Unit (optional)

3 Phase 200VAC or

400VAC

+ 1

R/L1

S/L2

T/L3

+ 3

R1/L11

S1/L21

T1/L31

-

U/T1

V/T2

W/T3

M

Be sure to remove the short-circuit bar before connecting the DC reactor.

„

CIMR-L7Z2037 to 2055

3 Phase 200VAC or

400VAC

+ 1

R/L1

S/L2

T/L3

+ 3

R1/L11

S1/L21

T1/L31 r / l1

/ l2

-

U/T1

V/T2

W/T3

Braking

Resistor (optional)

CDBR Braking

Unit (optional)

M

The DC reactor is built in.

2

Control power is supplied internally from the DC bus at all inverter models.

Fig 2.4 Main Circuit Terminal Connections

2-

11

2

‹

Wiring the Main Circuits

This section describes wiring connections for the main circuit inputs and outputs.

„

Wiring Main Circuit Inputs

Consider the following precautions for the main circuit power supply input.

Installing Fuses

To protect the inverter, it is recommended to use semiconductor fuses like they are shown in the table below.

Rated

Inverter Type Inverter Input

Current (A)

23P7

25P5

27P5

2011

2015

2018

2022

2030

2037

2045

2055

52

68

96

115

21

25

40

156

176

220

269

Voltage (V)

240

240

240

240

240

240

240

240

240

240

240

Table 2.6 Input Fuses

Fuse Selection

Current (A)

I

2 t (A

2 s)

80

100

130

150

30

40

60

180

240

300

350

82~220

220~610

290~1300

450~5000

1200~7200

1800~7200

870~16200

1500~23000

2100~19000

2700~55000

4000~55000

Selection Example (FERRAZ)

Model Rating I²t (A²s)

A60Q30-2

A50P50-4

A50P80-4

A50P80-4

A50P125-4

A50P150-4

A50P150-4

A50P200-4

A50P250-4

A50P300-4

A50P350-4

600V / 30A

500V / 50A

500V / 80A

500V / 80A

500V / 125A

500V / 150A

500V / 150A

500V / 200A

500V/ 250A

500V / 300A

500V / 350A

132

250

640

640

1600

2200

2200

4000

6200

9000

12000

43P7

44P0

45P5

47P5

4011

4015

4018

4022

4030

4037

4045

4055

10.2

13.2

17

22

32

41

49

58

78

96

115

154

480

480

480

480

480

480

480

480

480

480

480

480

30

50

60

70

15

20

25

80

100

125

150

200

34~72

50~570

100~570

100~640

150~1300

400~1800

700~4100

240~5800

500~5800

750~5800

920~13000

1500~13000

A60Q20-2

A60Q30-2

A60Q30-2

A60Q30-2

A70P50-4

A70P70-4

A70P80-4

A70P80-4

A70P100-4

A70P125-4

A70P150-4

A70P200-4

600V / 20A

600V / 30A

600V / 30A

600V / 30A

700V / 50A

700V / 70A

700V / 80A

700V / 80A

700V / 100A

700V / 125A

700V / 150A

700V / 200A

41

132

132

132

300

590

770

770

1200

1900

2700

4800

2-

12

Installing a Moulded-Case Circuit Breaker

If a moulded case circuit breaker is used for the power supply connection (R/L1, S/L2, and T/L3) it must be suitable for the Inverter.

•

•

The MCCB should have a capacity of 1.5 to 2 times of the inverter's rated current.

For the MCCB's time characteristics selection the inverter's overload protection (one minute at 150% of the rated output current) must be considered.

Installing an Earth Leakage Breaker

An earth leakage breaker which is able to detect all kinds of current should be used in order to ensure a safe earth leakage current detection.

•

•

If a special-purpose earth leakage breaker for Inverters is used, it should have an actuating current of at least 30 mA per Inverter.

If a standard earth leakage breaker is used, it should have an actuating current of 200 mA or more per

Inverter and a actuating time of 0.1 s or more.

Installing a Magnetic Contactor at the Input

If the power supply for the main circuit is shut off by a control circuit, a magnetic contactor can be used.

The following things should be considered:

•

•

The Inverter can be started and stopped by opening and closing the magnetic contactor on the primary side.

Frequently opening and closing the magnetic contactor may cause an Inverter fault. Do not exceed one power up per hour.

When the Inverter is operated using the Digital Operator, automatic operation cannot be performed after recovery from a power interruption.

Connecting Input Power Supply to the Terminal Block

The input power supply can be connected in any sequence to the terminals R, S or T on the terminal block; the input phase sequence is irrelevant to the output phase sequence.

Installing an Input AC Reactor

If the Inverter is connected to a large-capacity power transformer (600 kW or more) or a phase advancing capacitor is switched nearby, an excessive peak current could flow through the input power circuit, causing an inverter damage. As a countermeasure an optional AC Reactor the inverter input or a DC reactor at the DC reactor connection terminals can be installed.

In order to fulfill the EN12015 an AC reactor has to be installed. Refer to

Chapter 9, AC Reactors for EN

12015 Compatibility

for the available reactors. The AC reactor has to be installed between the power supply and the EMC filter (like shown in

Fig 2.5

)

Power

Supply

L1

L2

L3

AC

Reactor

Filter

L7Z

Inverter

M

Fig 2.5 AC reactor installation

Installing a Surge Absorber

Always use a surge absorber or diode for inductive loads near the Inverter. Inductive loads include magnetic contactors, electromagnetic relays, solenoid valves, solenoids, and magnetic brakes.

2

2-

13

2

„

Wiring the Output Side of the Main Circuit

The following precautions should be considered for the output circuit wiring.

Connecting the Inverter and Motor

The output terminals U/T1, V/T2 and W/T3 must be connected according to the motor lead wires U, V and W.

The motor should rotate forward with the forward run command. If not, two of the motor cable wires can be switched.

Never Connect a Power Supply to Output Terminals

A power supply must never be connected to the output terminals U/T1, V/T2, and W/T3. Otherwise the internal circuits of the Inverter will be damaged.

Never Short or Ground Output Terminals

If the output terminals are touched with bare hands or the output wires come into contact with the Inverter case, an electric shock or a short circuit may occur.

Do Not Use a Phase Advancing Capacitor

A phase advancing capacitor must never be connected to the inverter output circuit. The high-frequency components of the Inverter output may overheat and be damaged and may cause other parts to burn.

Using a Magnetic Contactor

A magnetic contactor (MC) between the Inverter and motor must not be turned ON or OFF during inverter operation. If the MC is turned ON during the Inverter is operation, a large inrush current will be created and the inverter’s over current protection may operate.

„

Ground Wiring

The following precautions should be considered for the ground connection.

•

•

Always use the ground terminal of the 200 V Inverter with a ground resistance of less than 100

Ω and that of the 400 V Inverter with a ground resistance of less than 10

Ω.

Ground wires should not be shared with other devices, such as welding machines or power tools.

•

•

A ground wire, that complies with technical standards on electrical equipment must be used. The length of the ground wire should be as low as possible.

Leakage current flows through the Inverter. Therefore, if the distance between the ground electrode and the ground terminal is too long, potential on the ground terminal of the Inverter will become unstable.

When more than one Inverter is used the ground wires should not be looped.

OK

NO

Fig 2.6 Ground Wiring

2-

14

„

Connecting a Braking Resistor and Braking Unit (CDBR)

A Braking Resistor and Braking Unit can be connected to the Inverter like shown in the

Fig 2.7

.

To prevent overheating of the braking unit/braking resistor, the inverter operation should be stopped when the overload contacts are operated.

200 V and 400 V Class Inverters with 3.7 to 18.5 kW Output Capacity

Braking Resistor

Inverter

Thermal overload relay contact

2

200 V and 400 V Class Inverters with 22 kW or higher Output Capacity

CDBR Braking Unit Braking Resistor

Inverter

Thermal overload relay contact

Thermal overload relay contact

Fig 2.7 Connecting the Braking Resistor and Braking Unit

2-

15

2

Connecting Braking Units in Parallel

When two or more Braking Units are connected in parallel the wiring and jumper settings must be done like

shown in

Fig 2.8

. There is a jumper for selecting whether each Braking Unit is to be a master or slave. “Mas-

ter” must be set for the first Braking Unit only, “Slave” must be set for all other Braking Units (i.e. from the second Unit onwards).

Thermal overload relay contact

Thermal overload relay contact

Thermal overload relay contact

Braking

Resistor

Braking

Resistor

Braking

Resistor

Inverter

Braking Unit #3

Braking Unit #2

2-

16

Braking Unit #1

Thermal overload relay contact

Thermal overload relay contact

Thermal overload relay contact

Fig 2.8 Connecting Braking Units in Parallel

„

Control Power Supply Connection

The controller of the Varispeed L7 can be supplied by an external voltage source during rescue operation using the twisted wires marked with P0 and N0. Upon shipment the wires are connected to the main circuit terminal

B1 (units up to 18.5 kW) or terminal +3 (units from 22 kW and above) and terminal -.

B2

B1 / + 3

L1

L2

L3

P0

N0

R/L1

S/L2

T/L3

-

Power Supply

Control circuit

Fig 2.9 Control Power Supply Connection

Please refer to

page 6-77, Rescue System

for details about rescue operation.

U/T1

V/T2

W/T3

Wiring Control Circuit Terminals

‹

Wire Sizes

For remote operation using analog signals, the control line length between the Analog Operator or operation signals and the Inverter should be less than 30 m. The controller wires should always be separated from main power lines or other control circuits in order to avoid disturbances.

It is recommended to use shielded twisted-pair wires and ground the shield for the largest area of contact between shield and ground.

The terminal numbers and the appropriate wire sizes are shown in

Table 2.7

.

Terminals

Table 2.7 Terminal Numbers and Wire Sizes (Same for all Models)

Terminal

Screws

Tightening

Torque

(N•m)

Possible Wire

Sizes mm

2

(AWG)

Recommended Wire

Size mm

2

(AWG)

AC, SC, A1, +V, S1, S2, S3,

S4, S5, S6, S7, BB, MA,

MB, MC, M1, M2, M3, M4,

M5, M6

E (G)

Phoenix type

M3.5

0.5 to 0.6

0.8 to 1.0

Solid wire

*1:

0.5 to 2.5

Stranded wire:

0.5 to 1.5

(26 to 14)

0.5 to 2.5

14)

(20 to

0.75

(18)

1.0

(12)

Wire Type

• Shielded, twisted-pair wire

• Shielded, polyethylene-covered, vinyl sheath cable

*1. Ferrules with plastic sleeves should be used for the signal lines to simplify wiring and improve reliability.

„

Ferrules for Signal Lines

Models and sizes of ferrules with plastic sleeves for the signal lines are shown in the following table.

Wire Size mm

2

(AWG)

0.25 (24)

0.5 (20)

0.75 (18)

1.5 (16)

2 (14)

Table 2.8 Ferrule Sizes

Model

AI 0.25 - 8YE

AI 0.5 - 8WH

AI 0.75 - 8GY

AI 1.5 - 8BK

AI 2.5 - 8BU d1

0.8

1.1

1.3

1.8

2.3

d2

2

2.5

2.8

3.4

4.2

L

12.5

14

14

14

14

Manufacturer

Phoenix Contact

2

Fig 2.10 Ferrule Sizes

2-

17

2

‹

Control Circuit Terminal Functions

The functions of the control circuit terminals are shown in

Table 2.9

. Use the appropriate terminals for the cor-

rect purposes.

Type No.

S1

S2

S3

S4

Digital input signals

S5

S6

S7

BB

BB1

*1

SC

Table 2.9 Control Circuit Terminals with default settings

Signal Name

Forward run/stop command

Reverse run/stop command

Nominal speed

Inspection Run

Intermediate speed

Leveling speed

Not used

Hardware baseblock

Hardware baseblock 1

Digital input common

–

–

Function

Forward run when ON; stopped when OFF.

Reverse run when ON; stopped when OFF.

Nominal speed when ON.

Inspection RUN when ON.

Intermediate speed when

ON.

Functions are selected by setting

H1-01 to H1-05.

Leveling speed when ON.

–

–

Signal Level

24 VDC, 8 mA

Photo-coupler

Analog input signals

+V

A1

AC

E(G)

15 V power supply

*2

15 V power supply for analog references

Frequency reference

Analog reference neutral

Shield wire, optional ground line connection point

0 to +10 V/100%

–

–

Brake command

(1NO contact)

Brake command when ON.

–

–

–

15 V

(Max. current: 20 mA)

0 to +10 V(20 k

Ω)

–

–

Digital output signals

M5

M6

MA

MB

MC

M1

M2

M3

M4

Contactor Control

(1NO contact)

Inverter Ready

(1NO contact)

Fault output signal (SPDT)

(1 Change over contact)

Contactor Control when ON

Inverter Ready when ON.

Multi-function contact outputs Relay contacts

Contact capacity:

1 A max. at 250 VAC

1 A max. at 30 VDC

*3

Fault when CLOSED across MA and MC

Fault when OPEN across MB and MC

*1. This terminal is available on inverters with hardware SPEC B only. ( hardware version).

page 1-4, Inverter Specifications

describes how to find out the inverter

*2. Do not use this power supply for supplying any external equipment.

*3. When driving a reactive load, such as a relay coil with DC power supply, always insert a flywheel diode as shown in

Fig 2.11

.

Fig 2.11 Flywheel Diode Connection

Flywheel diode

External power: 30

VDC max.

Coil

1 A max.

The rating of the flywheel diode must be at least as high as the circuit voltage.

2-

18

„

Sinking/Sourcing Mode (NPN/PNP Selection)

The input terminal logic can be switched over between sinking mode (0-V common, NPN) and sourcing mode

(+24V common, PNP) by using the jumper CN5. An external power supply is also supported, providing more freedom in signal input methods.

Table 2.10 Sinking/Sourcing Mode and Input Signals

Internal Power Supply – Sinking Mode (NPN)

External Power Supply – Sinking Mode (NPN)

S1

S2

B1

SC

A1

B2 B3

A2 A3

CN5

IP24V

(+24V)

S1

S2

+

24 VDC

SC

A1

B1 B2 B3

A2 A3

CN5

IP24V

(+24V)

Internal Power Supply – Sourcing Mode (PNP) External Power Supply – Sourcing Mode (PNP)

2

S1

S2

SC

B1

A1

B2 B3

A2 A3

CN5

IP24V

(+24V)

S1

S2

-

24 VDC

SC

A1

B1 B2 B3

A2 A3

CN5

IP24V

(+24V)

2-

19

‹

Control Circuit Terminal Connections

Connections to Inverter control circuit terminals are shown in

Fig 2.12

.

2

Multi function

Inputs

(Factory setting)

Forward run/stop

Reverse run/stop

Nominal Speed

Inspection Run

Intermediate Speed

Leveling Speed

Not used

Hardware Baseblock (note 2)

S6

S7

BB

BB1

S1

S2

S3

S4

S5

+24V, 8mA

SC

IP24V (24V)

CN5(NPN setting)

E(G)

Voltage adjustment

Analog input

(Speed reference)

2kOhm

2kOhm

0 to 10 V

P

+V

Analog input power supply +15V, 20mA

A1 Master speed reference 0 to 10V

AC

0 V

MA

MB

MC

Fault contact output

250VAC, max. 1A

30VDC, max. 1A

M1

M2

Brake Command

(Factory setting)

M3

M4

Contactor Control

(Factory setting)

M5

M6

Inverter Ready

(Factory setting)

Multi-function contact output

250VAC, max. 1A

30VDC, max. 1A

Note:

1. The CN5 factory setting is NPN

2. To enable the inverter both inputs, BB and BB1 must be closed. If only one of the inputs is closed, “BB” will be displayed in the operator panel and the inverter will not start.

INFO

Shielded wires

Twisted-pair wires

Fig 2.12 Control Circuit Terminal Connections

The base block circuit is a two channel circuit, i.e. always both channels (terminal BB and BB1) have to be enabled to enable the inverter output.

Generally the terminals BB and BB1 can be linked directly at the terminals. However, if an EN81-1 conform one motor contactor solution is required, the recommended BB and BB1 terminal wiring depends on the installation:

1. If the controller and inverter are mounted in the same cabinet the terminals BB and BB1 can be linked directly at the inverter terminal board. Only one wire from the controller to the inverter base block input is necessary.

2. If the inverter is mounted separated from the controller cabinet, two physically separated wires for the

BB and BB1 terminal should be used in order to keep redundancy in case of a fault of one of the signal lines.

2-

20

EN81-1 Conform Wiring with One Motor Contactor

In order to use the L7Z with one motor contactor instead of two while keeping compliance to the

EN81-1:1998, the following rules have to be followed:

•

The hardware base block function using the terminals BB and BB1 must be used to enable / disable the drive. The input logic must be PNP.

•

•

•

If the elevator safety chain is opened, the inverter output must be cut. This means that the base block signals at the terminals BB and BB1 must be opened, e.g. via an interposing relay.

The base block monitor function must be programmed for one of the multi-function outputs (H2-†† =

46/47). The regarding digital output contact must be implemented in the contactor supervision circuit of the controller in order to prevent a restart in case of an inverter base block or motor contactor malfunction.

All contactors must be conform to the EN81-1:1998, paragraph 13.2.

Fig 2.13

shows an EN81-1:1998 wiring example.

Fig 2.13 EN81-1 Conform Wiring with One Motor Contactor (Example)

2

Safety Chain

Circuit

Contactor Close

Command

Elevator Controller

Contactor Check

(Restart Permission)

K01

24VDC *1

K1

BB BB1

Up/Down; Speed selection; ...

Yaskawa

CIMR-L7xxxx

BB Monitor

(NC)

K2

M

The wiring rules and the wiring example are approved by the TUEV Sued, Germany. For more details please contact your OYMC sales representative.

2-

21

2

‹

Control Circuit Wiring Precautions

The following precautions for wiring the control circuits must be considered.

•

•

Control circuit and main circuit wiring should be separated (terminals R/L1, S/L2, T/L3, B1, B2, U/T1, V/

T2, W/T3, , 1, 2, and 3, PO, NO) and other high-power lines.

The wiring for control circuit terminals MA, MB, MC, M1, M2, M3, M4, M5, and M6 (contact outputs) should be separated from wiring to other control circuit terminals.

•

•

•

•

If an optional external power supply is used, it should be a UL Listed Class 2 power supply.

Twisted-pair or shielded twisted-pair cables should be used for control circuits to prevent operating faults.

The cable shields should be connected to the ground with the maximum contact area.

Cable shields have to be grounded on both cable ends.

2-

22

Wiring Check

‹

Checks

Check all wiring after wiring has been completed. Do not perform continuity check on control circuits. Perform the following checks on the wiring.

•

•

Is all wiring correct?

Have no wire clippings, screws, or other foreign material been left?

•

•

Are all screws tight?

Are any wire ends contacting other terminals?

2

2-

23

Installing and Wiring Option Cards

2

‹

Option Card Models and Specifications

Up to three option cards can be mounted simultaneously in the Inverter. Each of the three option board sockets on the controller card (A, C and D) can take up one option card like shown in

Fig 2.14

.

Table 2.11

shows the available option cards and their specifications.

Card

PG speed control cards

Communications cards

PLC option card

Analog Input card

Analog Output Cards

Digital Output Cards

Table 2.11 Option Card Specifications

Model Specifications

PG-B2

PG-X2

Two phase (phase A and B), +12V inputs, max. response frequency: 50 kHz

Three phase (phase A, B, Z), line driver inputs

(RS422), max. response frequency: 300 kHz

PG-F2

3G3RV-PDRT2

SI-P1

SI-R1

SI-S1

S1-J

3G3RV-P10ST8-E

3G3RV-P10ST8-DRT-E

AI-14B

AO-08

AO-12

DO-08

DO-02C

Hiperfacey or EnDat 2.1 interface card

Intelligent DeviceNet option card

Option card for Profibus-DP fieldbus

Option card for InterBus-S fieldbus

Option card for CANOpen fieldbus

Option card for LONworks

PLC option card

PLC option card with DeviceNet communications port (Slave)

3 Channel analog input card

Signal level: -10 to 10 V or 0 to 10V

Resolution: 13 Bit + sign

2 channel analog output card

Signal level: 0 to 10 V

Resolution: 8 Bit

2 channel high resolution analog output card

Signal level: -10 to +10 V

Resolution: 11 Bit + sign

6 channel digital output card for monitoring the inverter status (fault, zero speed, running, etc.)

2 channel relay contact output

Mounting

Location

A

A

A

C

C

C

C

C

C

C

C

D

D

D

D

‹

Installation

Before mounting an Option Card, remove the terminal cover and be sure that the charge indicator inside the

Inverter is OFF. After that, remove the Digital Operator/LED Monitor and front cover and mount the Option

Card.

Refer to documentation provided with the Option Card for the mounting instructions.

2-

24

„

Preventing C and D Option Card Connectors from Rising

After installing an Option Card into slot C or D, insert an Option Clip to prevent the side with the connector from rising. The Option Clip can be easily removed by holding onto the protruding portion of the Clip and pulling it out.

A Option Card mounting spacer hole

CN4

A Option Card connector

CN2

C Option Card connector

A Option Card mounting spacer

(Provided with A Option Card)

Option Clip

(To prevent raising of

C and D Option Card)

C Option Card mounting spacer

C Option Card

D Option Card

D Option Card mounting spacer

A Option Card mounting spacer

A Option Card

Fig 2.14 Mounting Option Cards

‹

PG Speed Control Card Terminals and Specifications

„

PG-B2 Option Card

Input/Output Specifications

Terminal

TA1

TA2

TA3

No.

1

2

5

4

(E)

2

3

6

1

3

4

Table 2.12 PG-B2 I/O Specifications

Contents

Power supply for pulse generator

Specifications

12 VDC (±5%), 200 mA max.

0 VDC (GND for power supply)

H: +8 to 12 V (max. input frequency: 50 kHz)

Pulse input terminals phase A

GND pulse input phase A

H: +8 to 12 V (max. input frequency: 50 kHz)

Pulse input terminals phase B

GND pulse input phase B

Pulse monitor output terminals phase A

Open collector output, 24 VDC, 30 mA max.

Pulse monitor output terminals phase B

Shield connection terminal

Open collector output, 24 VDC, 30 mA max.

-

2

2-

25

2

Wiring the PG-B2 card

The following illustrations show wiring examples for the PG-B2 using the option cards power supply or an external power source for supplying the PG.

Three-phase 200

VAC (400 VAC)

Inverter

R/L1

S/L2

T/L3

Power supply +12 V

Power supply 0 V

Pulse input phase A

GND pulse input phase A

Pulse input phase B

GND pulse input phase B

Pulse monitor output phase A

Pulse monitor output phase B

Fig 2.15 PG-B2 Wiring Using the Option Cards Power Supply

2-

26

Fig 2.16 PG-B2 Wiring Using a 12 V External Power Supply

Precautions:

•

The length of the pulse generator's wiring must not be more than 100 meters.

•

The direction of rotation of the PG can be set in user parameter F1-05. The factory setting is A-phase leading in forward direction (motor shaft turning counterclockwise seen from motor shaft side).

Forward rotation of standard motor (PG)

Forward command

Motor output axis rotates counter-clockwise during Inverter forward command.

Rotation

(CCW)

A-phase

B-phase

The A-phase leads (CCW) when motor rotation is forward.

•

•

The pulse monitor output factor can be changed using parameter F1-05.

Refer to

page 2-31, Wiring Precautions

for general precautions.

„

PG-X2 Option Card

Input/Output Specifications

Terminal

TA1

TA2

TA3

No.

1

2

3

3

4

5

10

1

2

6

7

(E)

7

8

9

4

5

6

Table 2.13 PG-X2 I/O Specifications

Contents

Power supply for pulse generator

Pulse input terminal phase A (+)

Pulse input terminal phase A (–)

Pulse input terminal phase B (+)

Pulse input terminal phase B (–)

Pulse input terminal phase Z (+)

Pulse input terminal phase Z (–)

Common terminal inputs

Pulse monitor output terminal phase A (+)

Pulse monitor output terminal phase A (–)

Pulse monitor output terminal phase B (+)

Pulse monitor output terminal phase B (–)

Pulse monitor output terminal phase Z (+)

Pulse monitor output terminal phase Z (–)

Common terminal monitor outputs

Shield connection terminal

*1. The 5V and 12V power supply should not be used at the same time.

–

–

Specifications

12 VDC (±5%), 200 mA max.

*1

0 VDC (GND for power supply)

5 VDC (±5%), 200 mA max.

*1

Line driver input (RS422 level)

(maximum input frequency: 300 kHz)

–

Line driver output (RS422 level output)

2

2-

27

2

Wiring the PG-X2 card

The following illustrations show wiring examples for the PG-X2 using the option cards power supply or an external power source for supplying the PG.

Three-phase

200 VAC

(400 VAC)

PG-X2

0V

+5 VDC

A+ Phase Input

A- Phase Input

B+ Phase Input

B- Phase Input

Z+ Phase Input

Z- Phase Input

P

P

P

A Phase Output

B Phase Output

Z Phase Output

Fig 2.17 PG-X2 Wiring Using the Option Cards Power Supply

2-

28

Fig 2.18 PG-X2 Wiring Using a 5 V External Power Supply

Precautions:

•

The length of the pulse generator's wiring must not be more than 100 meters.

•

•

The direction of rotation of the PG can be set in user parameter F1-05. The factory setting is A-phase leading in forward direction (motor shaft turning counterclockwise seen from motor shaft side).

Refer to

page 2-31, Wiring Precautions

for general precautions.

„

PG-F2 Option Card

Supported Encoders

The PG-F2 option card can be used in combination with the following encoder types:

•

•

Hiperface y

: SRS60/70

EnDat 2.1: ECN1313, ECN113, ECN413

The maximum encoder speed shall not exceed 1200 min

-1

.

Input/Output Specifications

Terminal

TB1

TB2

TB3

TB4

No.

1

2

3

2

1

8

1

6

7

4

5

2

3

4

(E)

Table 2.14 PG-F2 I/O Specifications

Contents

Hiperface y

EnDat

Us 7-12V

5V U

P and U

P

sensor

Specifications

EnDat: 5VDC (±5%, max. 250 mA)

Hiperface y

: 8VDC (±5%, max. 150mA)

0V GND

REFSIN

0V U

N

and 0V sensor

B-

+SIN

REFCOS

+COS

DATA+

DATA-

-

-

Pulse monitor A+

B+

A-

A+

DATA

/DATA

CLOCK

/CLOCK

Pulse monitor A-

Pulse monitor B+

Pulse monitor B-

Shielded sheath connection terminal

Differential inputs

RS-485 Data channel,

Terminating resistance: 130 Ohm

Differential output, Clock frequency: 100 kHz

Open Collector Outputs max 24 VDC, 30 mA

Encoder Power Supply Voltage Selection

The encoder power supply voltage must be set according to the encoder type using switch S1 on the PG-F2 card. Using potentiometer RH1 the encoder power supply voltage can be fine adjusted. The switch S1 factory setting is OFF (EnDat is preselected). The encoder power supply is pre adjusted to 5.0~5.25V upon shipment.

2

S1

RH1

I

OFF

I: 8V (U

S

= 7.5 ~ 10.5 V), for HIPERFACE

OFF: 5V (U

S

= 5 V +-5%), for EnDat, (factory setting)

S1 = I: 7.5 ~ 10.5 V, for HIPERFACE

S1 = OFF: 4.85 ~ 6.5 V, for EnDat

(factory setting: 5.0 to 5.25V)

Fig 2.19 PG-F2 Encoder Power Supply Voltage Selection

2-

29

2

Wiring the PG-F2 Card

The following illustration shows PG-F2 option card wiring with Hiperface y

or EnDat 2.1 encoders.

Three-phase

200 VAC

(400 VAC)

HIPERFACE® or

EnDat Encoder

PM

PG-F2

TB3

TB2

1

2

TB1

1

4

5

2

3

6

7

8

TB4

A+ Phase Output

A- Phase Output

B+ Phase Output

B- Phase Output

( CLOCK)

( /CLOCK)

U

S

( U

P

and U

P sensor)

GND ( 0

V

UN and 0V sensor)

REFSIN ( B-)

P +SIN ( B+)

REFCOS ( A-)

+COS ( A+) P

Data+ ( DATA)

Data- ( /DATA)

P

Fig 2.20 PG-F2 Wiring (EnDat signal names in brackets)

Precautions:

•

The length of the pulse generator's wiring must not be more than 50m for the signal lines and 30m for the monitor output at terminal TB3.

•

The direction of rotation of the PG can be set in user parameter F1-05 (PG Rotation). The factory setting is A-phase/SIN leading in forward direction (motor shaft turning counterclockwise seen from the shaft side).

SIN

COS

Pulse A

Pulse B

•

•

Refer to

page 2-31, Wiring Precautions

for general precautions.

The signal voltage levels must be within the following limits:

REFSIN (B-), REFCOS (A-) offset: 2.2 ~ 2.8 V

+SIN (B+), +COS (B-) peak-to-peak voltage 0.9 ~ 1.1 V

2-

30

‹

Wiring the Terminal Blocks

„

Wire Sizes (Same for All PG-Card Models)

Terminal wire sizes are shown in

Table 2.15

. For the ferrule types refer to

Table 2.8

.

Terminal

Pulse generator power supply

Pulse input terminal

Pulse monitor output terminal

Shield connection terminal

Table 2.15 Wire Sizes

Terminal

Screws

-

M3.5

Wire Thickness Wire Type

• max. 1.0 mm² for flexible wire

• max. 0.5 mm² for flexible wire with ferrules

• max. 1.5 mm² for solid wire

0.5 to 2.5 mm²

Shielded, twisted-pair wire

Shielded, polyethylenecovered, vinyl sheath cable

Tightening Torque

0.22 Nm

-

„

Wiring Precautions

Consider the following precautions for wiring.

•

Shielded twisted-pair wires must be used for signal lines. Use cables which are recommended by the encoder manufacturer only.

•

•

•

For the cable connection to the encoder connectors which are recommended by the encoder manufacturer should be used.

Ferrules should be used (refer to

Table 2.8

).

The signal lines of the PG Speed Control Card should be separated from main power lines and other control circuits.

•

•

•

•

•

The shield must be connected (green grounding cable of the option card) to the ground terminal to prevent operational errors caused by noise.

The wire ends should not be soldered. Doing so may cause contact faults.

The PG cards power supply must not be used for anything other than the pulse generator (encoder). Using it for another purpose can cause malfunctions due to noise.

A separate power supply is required if the PG power supply consumption is higher than 200 mA. (If momentary power loss must be handled, use a backup capacitor or other method.)

The PG cards maximum input frequency must not be exceeded. The output frequency of the pulse generator can be calculated using the following formula.

f

PG (Hz) =

Motor speed at maximum output frequency (min

–1

)

60 x PG rating (p/rev)

2

2-

31

2

2-

32