Nidec Control Techniques Unidrive M Modular Installation Manual page 80

Safety information
30 0V common
Function
Refer to section on page 89 for further information.
SAFE TORQUE OFF function (drive enable)
31
Type
Voltage range
Absolute maximum applied
voltage
Logic Threshold
Low state maximum voltage for
disable to SIL3 and PL e
Impedance
Low state maximum current for
disable to SIL3 and PL e
Response time
The SAFE TORQUE OFF function may be used in a safety-related application in
preventing the drive from generating torque in the motor to a high level of
integrity. The system designer is responsible for ensuring that the complete
system is safe and designed correctly according to the relevant safety
standards. If the SAFE TORQUE OFF function is not required, this terminal is
used for enabling the drive.
41
Relay contacts
42
Default function
Contact voltage rating
Contact maximum current rating
Contact minimum recommended
rating
Contact type
Default contact condition
Update period
51 0 V
52 +24 Vdc
Size 6
Nominal operating voltage
Minimum continuous operating voltage
Maximum continuous operating voltage
Minimum startup voltage
Maximum power supply requirement
Recommended fuse
Size 7 to 10
Nominal operating voltage
Minimum continuous operating voltage
Maximum continuous operating voltage
Minimum startup voltage
Maximum power supply requirement
Recommended fuse
80
Introduction Product information
Common connection for all
external devices
Positive logic only digital input
0 V to +24 V
30 V
10 V ± 5 V
5 V
>4 mA @15 V from IEC 61131-2, type 1,
3.3 k Ω
0.5 mA
Nominal: 8 ms
Maximum: 20 ms
Drive OK indicator
240 Vac, Installation over-voltage
category II
2 A AC 240 V
4 A DC 30 V resistive load
0.5 A DC 30 V inductive load (L/R = 40 ms)
12 V 100 mA
Normally open
Closed when power applied and drive OK
4 ms
24.0 Vdc
18.6 Vdc
28.0 Vdc
18.4 Vdc
40 W
4 A @ 50 Vdc
24.0 Vdc
19.2 Vdc
30 Vdc (IEC),
26 Vdc (UL)
21.6 Vdc
60 W
4 A @ 50 Vdc
System configuration
To prevent the risk of a fire hazard in the event of a fault, a
fuse or other over-current protection must be installed in the
relay circuit.
WARNING
6.12.3 Unidrive M702 control connections
Table 6-23 The control connections consist of:
Q
Function
ty
Digital input 2
Digital input / output 2
Relay 1
Drive enable (SAFE
2
TORQUE OFF)
+24 V User output 1
0 V common 5
+24 V External input 1
Key:
Indicates the parameter which is being controlled
Destination parameter:
by the terminal / function
Indicates the parameter being output by the
Source parameter:
terminal
Digital - indicates the mode of operation of the
terminal, i.e. positive / negative logic (the Drive
Mode parameter:
Enable terminal is fixed in positive logic), open
collector.
All digital terminal functions (including the relay) can be programmed in
menu 8.
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 circuits are insulated
from human contact by at least one layer of insulation
(supplementary insulation) rated for use at the AC supply
WARNING
voltage.
If the control circuits are to be connected to other circuits
classified as Safety Extra Low Voltage (SELV) (e.g. to a
personal computer), an additional isolating barrier must be
included in order to maintain the SELV classification.
WARNING
If any of the digital inputs (including the drive enable input)
are connected in parallel with an inductive load (i.e.
contactor or motor brake) then suitable suppression (i.e.
diode or varistor) should be used on the coil of the load. If no
CAUTION
suppression is used then over voltage spikes can cause
damage to the digital inputs and outputs on the drive.
Ensure the logic sense is correct for the control circuit to be
used. Incorrect logic sense could cause the motor to be
started unexpectedly.
Positive logic is the default state for the drive.
CAUTION
Unidrive M Modular Installation Guide
Mechanical
Electrical Installation
Installation
Control parameters Terminal
available number
Destination, invert, logic
select
Input / output mode select,
destination / source, invert,
logic select
Source, invert
Source, invert
Destination, invert
Issue Number: 2
7, 8
4, 5
41, 42
11, 13
2
1, 3, 6,
10, 12
9