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44

Digidrive SK Getting Started Guide

www.leroy-somer.com

Issue Number:  d

Figure 8-1 Diagnostics logic diagram

Cooling fan control (size B, C and D only)

As default, the drive’s cooling fan is controlled by the drive. The fan will remain off until 
the heatsink temperature reaches 60

°

C or the output current rises above 75% of the 

drive rating. The fan will then switch on and run at full speed for a minimum of 20s.
For further details, see the 

Digidrive SK Advanced User Guide

.

Analogue inputs

94

95

81

Analogue input 1 (%)

Analogue input 2 (%)

Digital I/O

XX

Digital I/O

Read

word

Pr 

90

Sequencer

92

93

91

Jog

selected

Reverse 
selected

Reference

enabled

X-1

1

0

0

1

0

1

0Hz

82

Pre-ramp

reference (Hz)

84

DC bus
voltage

42

41

40

39

38

37

32

09

08

07

06

Motor rated 

current
Motor rated 

speed
Motor rated 
voltage
Motor power 

factor
Dynamic V to f
select
Switching 

frequency

Autotune

Motor rated 

frequency
No. of motor
poles
Voltage 

mode select
Voltage 

boost

Motor control

03

Acceleration

rate
Deceleration

rate

Ramps

02

01

Minimum

speed
Maximum

speed

Speed clamps

83

Post-ramp

reference 

(Hz)

85

Motor 

frequency

86

Motor 

voltage

87

Motor 

speed

rpm

88

89

Motor active

current

Motor current

Current 

measurement

15

Jog

reference

Digital I/O read word Pr 

90

Terminal

Binary value for XX

B3

1

B4

2

B5

4

B6

8

B7

16

T6/T5

64

Frequency 

reference

selected (Hz)

04

T2

T4

T6

T5

B3

B4

B5

B6

B7

XX

XX

Key

Read-write (RW) 
parameter

Read-only (RO) 
parameter

Input
terminals

Output
terminals

B3

B4

11

12

Start/stop

logic select

Brake

controller

enabled

31

Stop mode

select

Ramp mode
select

30

10

Parameter

access

Summary of Contents for DIGIDRIVE SK

Page 1: ...reference input A1 10V reference output Local voltage speed reference input A2 B1 B2 B3 B4 B5 B6 B7 24V output Drive Enable Reset USA Not stop Run Forward USA Run Run Reverse USA Jog Local A2 Remote...

Page 2: ...ntal impacts of its manufacturing operations and of its products throughout their life cycle To this end we operate an Environmental Management System EMS which is certified to the International Stand...

Page 3: ...trol terminals I O specification 15 5 Keypad and Display 18 5 1 Programming keys 18 5 2 Control keys 18 5 3 Selecting and changing parameters 19 5 4 Saving parameters 20 5 5 Parameter access 20 5 6 Se...

Page 4: ...4 Digidrive SK Getting Started Guide www leroy somer com Issue Number d Notes...

Page 5: ...personnel They do not isolate dangerous voltages from the output of the drive or from any external option unit The supply must be disconnected by an approved electrical isolation device before gainin...

Page 6: ...uction motors are designed for single speed operation If it is intended to use the capability of a drive to run a motor at speeds above its designed maximum it is strongly recommended that the manufac...

Page 7: ...t the capacitors may fail to discharge or be prevented from being discharged by a voltage applied to the output terminals If the drive has failed in a manner that causes the display to go blank immedi...

Page 8: ...g 3 0 Ib 2ML B SKB1100110 1 1 1 5 32 24 0 5 2 7 8 28 Model Size CT reference Nominal motor power Input fuse rating Typical full load input current 100 RMS output current 150 overload current for 60s M...

Page 9: ...3400037 0 37 0 5 6 1 7 2 5 1 3 1 95 100 1 2 kg 2 7 Ib 1 2T B SKB3400055 0 55 0 75 6 2 5 3 1 1 7 2 55 100 1 5T B SKB3400075 0 75 1 0 6 3 1 3 75 2 1 3 15 100 2T B SKB3400110 1 1 1 5 6 4 0 4 6 2 8 4 2 10...

Page 10: ...C D E F G H I mm in mm in mm in mm in mm in mm in mm in mm in mm in A 140 5 51 154 6 06 11 0 43 64 2 52 75 2 95 145 5 71 104 4 09 143 5 63 B 190 7 48 205 8 07 10 9 0 43 65 9 2 6 85 3 35 77 3 0 156 6...

Page 11: ...This is the minimum spacing between drives at the base of the drive where it is mounted against a back plate Figure 3 3 Features of the drive size B illustrated Drive size A B C mm in mm in mm in A 10...

Page 12: ...upply Optional Thermal protection device Stop Start Reset PE Supply ground Internal EMC filter Optional EMC filter Optional ground connection Supply ground Optional EMC filter Optional line reactor Fu...

Page 13: ...C at 230V 50Hz proportional to supply voltage and frequency The drive must be grounded by a conductor sufficient to carry the prospective fault current in the event of a fault See also the warning in...

Page 14: ...mains supply Where the motor cable is short it permits the requirements of EN61800 3 to be met for the second environment For longer motor cables the filter continues to provide a useful reduction in...

Page 15: ...tended EMC filter disconnected A The control circuits are isolated from the power circuits in the drive by basic insulation single insulation only The installer must ensure that the external control c...

Page 16: ...V mA as parameter range Parameter range 4 20 20 4 0 20 20 0 4 20 20 4 VoLt Scaling Input range automatically scaled to Pr 01 Minimum set speed Pr 02 Maximum set speed Input impedance 200 current 100k...

Page 17: ...trip where they become edge triggered See and above If the enable and run forward or enable and run reverse terminals are closed when the drive is powered up the drive will run straight away up to a...

Page 18: ...d 5 1 Programming keys The MODE key is used to change the mode of operation of the drive The UP and DOWN keys are used to select parameters and edit their values In keypad mode they are used to increa...

Page 19: ...and display flashes the value in the parameter being shown in the left hand display Pressing the MODE key in parameter edit mode will return the drive to the parameter view mode If the MODE key is pre...

Page 20: ...he output bridge is inactive Drive inhibited The drive is inhibited because there is no enable command or a coast to stop is in progress or the drive is inhibited during a trip reset Drive has tripped...

Page 21: ...er a security code has been set into Pr 25 5 6 2 Unlocking a security code Select parameter to be edited Press the MODE key the right hand display will flash CodE Press the UP key to start entering th...

Page 22: ...1 Parameter descriptions Level 1 Used to set the minimum speed at which the motor will run in both directions 0V reference or minimum scale current input represents the value in Pr 01 Used to set the...

Page 23: ...o Pr 05 is set by pressing the MODE key on exit from parameter edit mode The drive must be disabled stopped or tripped for a change to take place If Pr 05 is changed while the drive is running when th...

Page 24: ...0V Eur Analogue output motor speed Digital output zero speed Reference select Reference select 10k 2kmin T1 T2 T3 T4 B1 B2 B3 B4 B5 B6 B7 T4 B7 Reference selected 0 0 A1 0 1 Preset 2 1 0 Preset 3 1 1...

Page 25: ...verse V _ 24V 0V Eur Analogue output motor speed Digital output zero speed Not used Not used Not used Not used T1 T2 T3 T4 B1 B2 B3 B4 B5 B6 B7 0V 10V reference output 24V output Drive Enable Reset US...

Page 26: ...maximum speed Pr 02 20 WARNING 95 94 T4 T2 x 1 0 1 63 Invert 61 P Gain 62 I Gain PID reference input PID feedback input B7 PID enable Drive healthy 64 PID high limit 65 PID low limit 66 81 Drive refe...

Page 27: ...to 95 can be accessed LoC Used to lock a security code in the drive See section 5 6 Security codes on page 21 for further details No Function Range Defaults Type 06 Motor rated current 0 to Drive rat...

Page 28: ...e Yes 2 Enable Run Forward Reverse No 3 Stop Run Forward Reverse Yes 4 Stop Run Jog Yes 5 User programmable Run Forward Run Reverse No 6 User Programmable User Programmable User Programmable User Prog...

Page 29: ...SP Motor speed in rpm Cd Machine speed in customer defined units See Pr 24 Multiplying factor on motor speed rpm to give customer defined units Used to set up a user security code See section 5 6 Sec...

Page 30: ...by using Prog mode otherwise the drive will trip on C Acc at power up When boot mode is enabled it is impossible to return to rEAd or Prog mode To disable this mode please get in touch with your usual...

Page 31: ...age to frequency ratio constant torque standard load On Voltage to frequency ratio dependant on load current dynamic variable torque load This gives a higher motor efficiency 0 Disabled 1 Detect posit...

Page 32: ...ctionality of terminal B7 as set up with Pr 05 drive configuration will be disabled When setting to th press mode four times Analogue reference 2 will no longer be selected as the speed reference NOTE...

Page 33: ...Type 38 Autotune 0 to 2 0 RW When a rotating autotune is selected the drive will accelerate the motor up to 2 3 maximum speed in Pr 02 WARNING The motor must be at a standstill before a non rotating...

Page 34: ...rive has been commanded to stop the brake is applied immediately Defines the time between the frequency and load condition being met and the brake being released The ramp is held during this time Defi...

Page 35: ...hreshold 46 47 _ Motor frequency Brake release frequency Brake apply frequency 48 49 _ _ Reference enabled Latch Drive active In Out Reset Pre brake release delay 50 Post brake release delay 51 Brake...

Page 36: ...no PLC ladder program 1 LogicStick is fitted PLC ladder program is installed but stopped 2 LogicStick is fitted PLC ladder program is installed and running 3 LogicStick is not fitted Pr 61 to Pr 70 a...

Page 37: ...lowing read only RO parameters can be used as an aid to fault diagnosis on the drive See Figure 8 1 Diagnostics logic diagram on page 44 No Function Range Defaults Type 71 to Pr 61 to Pr 70 set up 0 t...

Page 38: ...e input A1 10V reference output Local voltage speed reference input A2 24V output Drive Enable Reset Run Forward Run Reverse Local A2 Remote A1 speed reference select 10k 2kmin Eur USA Analogue output...

Page 39: ...ot a standard 50 60Hz motor set Pr 39 accordingly Ready to autotune Enable and run the drive Close The Enable and Run Forward or Run Reverse signals Autotune The Digidrive SK will carry out a non rota...

Page 40: ...required control terminal connections 0V 10V reference output 24V output Drive Enable Reset Forward Reverse Analogue output motor speed Digital output zero speed Not used Not used Not used Not used T1...

Page 41: ...tor in Pr 09 If the motor is not a standard 50 60Hz motor set Pr 39 accordingly Ready to autotune Enable and run the drive Close The enable signal Press the START key Autotune The Digidrive SK will ca...

Page 42: ...d on drives heatsink Heatsink temperature exceeds allowable maximum th Motor thermistor trip Excessive motor temperature O Ld1 User 24V or digital output overload Excessive load or short circuit on 24...

Page 43: ...rring parameters SmartStick or when changing the default settings The drive is running or enabled Repeat the procedure with the drive locked Trip code Condition Possible cause Drive voltage rating UV...

Page 44: ...84 DC bus voltage 42 41 40 39 38 37 32 09 08 07 06 Motor rated current Motor rated speed Motor rated voltage Motor power factor Dynamic V to f select Switching frequency Autotune Motor rated frequency...

Page 45: ...eNet SM CANopen SM INTERBUS SM Ethernet SM Keypad Plus Remote panel mounting LCD multilingual text keypad display to IP54 NEMA 12 with additional help key SK Keypad Remote Remote panel mounting LED di...

Page 46: ...all of the drive s advanced parameters and also on the serial communications Furthermore it gives set up examples for the drive Option Module User Guides Installation Sheets These guides provide detai...

Page 47: ...13 Not used 14 15 Jog reference Hz 1 5 16 Analogue input 1 mode mA 4 20 17 Enable negative preset speeds OFF 18 Preset speed 1 Hz 0 0 19 Preset speed 2 Hz 0 0 20 Preset speed 3 Hz 0 0 21 Preset speed...

Page 48: ...67 Configurable parameter 7 68 Configurable parameter 8 69 Configurable parameter 9 70 Configurable parameter 10 Level 3 parameters 71 Pr 61 set up parameter 72 Pr 62 set up parameter 73 Pr 63 set up...

Page 49: ...ast acting fuses e g Bussman Limitron KTK series Gould Amp Trap ATM series or equivalent are used in the AC supply 11 2 AC supply specification The drive is suitable for use in a circuit capable of de...

Page 50: ...2kmin 24V 0V Pr 29 Eur Analogue output motor speed Digital output zero speed T5 T6 OK Fault T1 T2 T3 T4 0V Remote current speed reference input A1 10V reference output Local voltage speed reference i...

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