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Quantum MP User Guide 45
Issue: A3 www.emersonct.com
4.12.5 Surge immunity of control circuits - long
cables and connections outside a building
The input/output ports for the control circuits are designed for general
use within machines and small systems without any special precautions.
In applications where they may be exposed to high-energy voltage
surges, some special measures may be required to prevent malfunction
or damage. Surges may be caused by lightning or severe power faults in
association with grounding arrangements which permit high transient
voltages between nominally grounded points. This is a particular risk
where the circuits extend outside the protection of a building.
As a general rule, if the circuits are to pass outside the building where
the drive is located, or if cable runs within a building exceed 30m, some
additional precautions are advisable. One of the following techniques
should be used:
1. Galvanic isolation, i.e. do not connect the control 0V terminal to
ground. Avoid loops in the control wiring, i.e. ensure every control
wire is accompanied by its return (0V) wire.
2. Shielded cable with additional power ground bonding. The cable
shield may be connected to ground at both ends, but in addition the
ground conductors at both ends of the cable must be bonded
together by a power ground cable (equipotential bonding cable) with
cross-sectional area of at least 10mm
2
, or 10 times the area of the
signal cable shield, or to suit the electrical safety requirements of the
plant. This ensures that fault or surge current passes mainly through
the ground cable and not in the signal cable shield. If the building or
plant has a well-designed common bonded network this precaution
is not necessary.
3. Additional over-voltage suppression - for the analog and digital
inputs and outputs, a zener diode network or a commercially
available surge suppressor may be connected in parallel with the
input circuit as shown in
Figure 4-13 and Figure 4-14.
Figure 4-13 Surge suppression for digital and unipolar inputs and
outputs
Figure 4-14 Surge suppression for analog and bipolar inputs and
outputs
Surge suppression devices are available as rail-mounting modules, e.g.
from Phoenix Contact:
Unipolar TT-UKK5-D/24 DC
Bipolar TT-UKK5-D/24 AC
These devices are not suitable for encoder signals or fast digital data
networks because the capacitance of the diodes adversely affects the
signal. Most encoders have galvanic isolation of the signal circuit from
the motor frame, in which case no precautions are required. For data
networks, follow the specific recommendations for the particular
network.
4.13 Serial communications connections
The Quantum MP has a serial communications port (serial port) as
standard supporting two wire EIA485 communications. Please see Table
4-22 for the connection details for the RJ45 connector.
Figure 4-15 Serial communications port
Table 4-22 RJ45 connections
The communications port applies a two-unit load to the communications
network. Connectors 2, 3, 7 and shield must always be made to the
serial communications port. Shielded cable must be used at all times.
4.13.1 Isolation of the serial communications port
The serial PC communications port is double insulated and meets the
requirements for SELV in EN50178.
An isolated serial communications lead has been designed to connect
the drive to IT equipment (such as lap-top computers), and is available
from the supplier of the drive. See Table 4-23 for details.
Table 4-23 Isolated serial comms lead details
The “isolated serial communications” lead has reinforced insulation as
defined in IEC60950 for altitudes up to 3,000m.
N
When using the CT EIA232 Comms cable the available baud rate is
limited to 19.2k baud.
4.13.2 Multi-drop network
The drive can be used on a 2 wire EIA485 multi-drop network using the
drive's serial communications port when the following guidelines are
adhered to.
Connections
The network should be a daisy chain arrangement and not a star,
although short stubs to the drive are allowed.
The minimum connections are pins 2 (RX TX), 3 (isolated 0V), 7 (RX\
TX\) and the shield.
Pin 4 (+24V) on each drive can be connected together but there is no
power sharing mechanism between drives and therefore the maximum
power available is the same as a single drive. (If pin 4 is not linked to the
other drives on the network and has an individual load then the
maximum power can be taken from pin 4 of each drive.)
Termination resistors
Pin Function
1 120Ω Termination resistor
2RX TX
3 0V isolated
4 +24V (100 mA)
5 0V isolated
6 TX enable
7RX\ TX\
8
RX\ TX\ (if termination resistors are
required, link to pin 1)
Shell 0V isolated
In order to meet the requirements for SELV in IEC60950 (IT
equipment) it is necessary for the control computer to be
grounded. Alternatively, when a lap-top or similar device is
used which has no provision for grounding, an isolation
device must be incorporated in the communications lead.
Part number Description
4500-0087 CT EIA232 Comms cable
4500-0096 CT USB Comms cable
1
8
WARNING
NOTE
- Quantum MP 1
- General Information 2
- Drive software version 2
- Environmental statement 2
- REACH legislation 2
- Quantum MP User Guide 4
- 1 Safety Information 5
- 2 Product Information 6
- 2.3 Model number 7
- 8 Quantum MP User Guide 8
- 2.4 Compatible encoders 8
- 10 Quantum MP User Guide 10
- 12 Quantum MP User Guide 12
- Integral clear cover 13
- Integral mounting base plate 13
- 14 Quantum MP User Guide 14
- 3.1 Safety 14
- Pozi Pz2 15
- All sizes 15
- 16 Quantum MP User Guide 16
- 18 Quantum MP User Guide 18
- 3.4 Mounting method 18
- HIGH VOLTAGE 19
- 20 Quantum MP User Guide 20
- 3.5 Enclosure 20
- 3.5.2 Enclosure sizing 21
- 22 Quantum MP User Guide 22
- 3.8.3 Torque settings 23
- 24 Quantum MP User Guide 24
- 26 Quantum MP User Guide 26
- Quantum MP Size 1 28
- 1234567891011 29
- MP10 User Interface Board 30
- 32 Quantum MP User Guide 32
- CAUTION: 33
- 34 Quantum MP User Guide 34
- 36 Quantum MP User Guide 36
- 4.2 Ground connections 36
- 4.4 Line reactors 37
- 38 Quantum MP User Guide 38
- 40 Quantum MP User Guide 40
- 42 Quantum MP User Guide 42
- 4.11 Ground leakage 43
- 44 Quantum MP User Guide 44
- 4.13.2 Multi-drop network 45
- 46 Quantum MP User Guide 46
- 4.14 Shield connections 46
- 4.15 Control connections 46
- 48 Quantum MP User Guide 48
- 50 Quantum MP User Guide 50
- 4.16 General 50
- 52 Quantum MP User Guide 52
- 54 Quantum MP User Guide 54
- 5.2 Keypad operation 55
- 56 Quantum MP User Guide 56
- 5.3 Menu 0 (sub block) 57
- 58 Quantum MP User Guide 58
- 5.5 Menu 0 (linear) 59
- 5.6 Menu structure 59
- 60 Quantum MP User Guide 60
- 5.7 Advanced menus 60
- 5.8 Saving parameters 60
- Procedure 61
- 62 Quantum MP User Guide 62
- 6 Basic parameters 64
- 6.1 Full descriptions 65
- 66 Quantum MP User Guide 66
- Inactive 67
- Auto save 67
- Boot mode 67
- 2-Interpolation bits 68
- DC tachometer 70
- AC tachometer 70
- 7 Running the Motor 72
- Mot X XXXXXXXXX 73
- No XXXXXXXXXX kg 73
- 74 Quantum MP User Guide 74
- 76 Quantum MP User Guide 76
- 8 Optimization 78
- 80 Quantum MP User Guide 80
- 8.6 Current limit tapers 80
- 9 SMARTCARD Operation 81
- 82 Quantum MP User Guide 82
- 9.5 SMARTCARD parameters 83
- 84 Quantum MP User Guide 84
- 9.6 SMARTCARD trips 85
- 86 Quantum MP User Guide 86
- 10 Onboard PLC 87
- 88 Quantum MP User Guide 88
- 10.4 Getting started 88
- 10.6 Onboard PLC trips 89
- 11 Advanced Parameters 90
- 92 Quantum MP User Guide 92
- 94 Quantum MP User Guide 94
- 96 Quantum MP User Guide 96
- C10 C8 C12 97
- 98 Quantum MP User Guide 98
- 100 Quantum MP User Guide 100
- 11.2 Menu 2: Ramps 100
- 102 Quantum MP User Guide 102
- Speed accuracy and resolution 103
- 104 Quantum MP User Guide 104
- ) Default() 105
- 106 Quantum MP User Guide 106
- )Default() 107
- 108 Quantum MP User Guide 108
- 110 Quantum MP User Guide 110
- 112 Quantum MP User Guide 112
- 114 Quantum MP User Guide 114
- 11.7 Menu 7: Analog I/O 114
- 116 Quantum MP User Guide 116
- 11.8 Menu 8: Digital I/O 116
- 118 Quantum MP User Guide 118
- 120 Quantum MP User Guide 120
- 122 Quantum MP User Guide 122
- 124 Quantum MP User Guide 124
- 126 Quantum MP User Guide 126
- Figure 11-17 Brake sequence 127
- 128 Quantum MP User Guide 128
- 130 Quantum MP User Guide 130
- 132 Quantum MP User Guide 132
- 134 Quantum MP User Guide 134
- 136 Quantum MP User Guide 136
- 138 Quantum MP User Guide 138
- 140 Quantum MP User Guide 140
- 142 Quantum MP User Guide 142
- 11.23 Advanced features 142
- 144 Quantum MP User Guide 144
- Current limit versus speed 145
- 146 Quantum MP User Guide 146
- 12 Technical Data 147
- 148 Quantum MP User Guide 148
- 12.1.20 Weights 149
- 150 Quantum MP User Guide 150
- (Customer supplied) 150
- 152 Quantum MP User Guide 152
- Emission 153
- 154 Quantum MP User Guide 154
- Ambient temperature ( C)° 155
- 156 Quantum MP User Guide 156
- 13 Diagnostics 157
- 158 Quantum MP User Guide 158
- 160 Quantum MP User Guide 160
- 162 Quantum MP User Guide 162
- 164 Quantum MP User Guide 164
- 13.3 Trip Categories 164
- 13.4 Alarm indications 165
- 13.5 Status indications 165
- 14 UL Information 166
- List of tables 167
- 168 Quantum MP User Guide 168
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