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Re: How do I wire relays?

In message <199901071044.CAA30522@mt.arias.net> "Romeo Shayne Pavlic'" writes:

> I just bought a couple of relays for my T200Q5 and am not sure as to what
> numbers match up with what wires.  they are 0332019150 bosch relays and I
> believe the numbers by the prongs are something like 85, 86, 87, and so on.
> Anyone know where ground, load, etc. go?

All of these numbers are covered by a DIN standard.  A couple of years
back, I think one or two listers tried to order a copy of the standard
from Beuth Verlag (the DIN publishers) and I think at least one web
page was started.  For the life of me, I can't remember the URL.

This is a copy I stole earlier:


DIN Standard Terminal Designations

Someone stole this file from a Q lister who was cool enough to put a text
version of it on his web site.  Then _I_ stole it from _him_!

The purpose of the terminal designation system for automotive electrical
systems is to enable  easy and correct connection of the conductors to the
various devices, particularly in the event of repairs and equipment
replacement.  The terminal designations do not identify the conductors,
because devices with different terminal  designations can be connected at
the two ends of  each conductor.  For this reason, the terminal
designations need not be written on the lines which designate conductors.

A list of all terminal designations is given in DIN 72552.  In addition,
designations in accordance with DIN-VDE Standards for electrical  machines
can also be used.  If in the case of multiple-contact connections the
number of terminal designations as per DIN 72552 does not suffice, the
terminals are consecutively numbered using numbers or letters whose
representations of specific functions are not standardized.  The terminal
designations in the Table below only serve as examples.

1   Ignition coil, ignition distributor - Low voltage
1a  To contact breaker I (Ignition distributor with two separate circuits)
1b  To contact breaker II (Ignition distributor with two separate circuits)
4   Ignition coil, ignition distributor - high voltage
4a  From ignition coil I (Ignition distributor with two separate circuits)
4b  From ignition coil II (Ignition distributor with two separate circuits)
15  Switched (+) downstream of battery (output of ignition/driving switch)
15a Output at ballast resistor to ignition coil and starter
17  Glow plug and starter switch - Start
19  Glow plug and starter switch - Preheat
30  Input from battery (+) term., direct 12/24 V series-parallel battery
30a Input from (+) terminal of battery II
31  Battery negative terminal, or ground, direct
31b Return line to battery negative terminal, or ground via switch or relay
    (switched negative)
31a Return line to battery II, negative (12/24 V series-parallel battery
31c Return line to battery I, negative (12/24 V series-parallel battery

Electric motors
32  Return line
33  Main terminal connection
33a Self-parking switch-off
33b Shunt field
33f For second lower-speed range
33g For third lower-speed range
33h For fourth lower-speed range
33L Counterclockwise rotation
33R Clockwise rotation

45  Separate starter relay, output; starter, input (main current)
    Two-starter parallel operation - Starting relay for
    engagement current
45a Output, starter I, Input, starters I and II
45b Output, starter II
48  Terminal on starter & on start-repeating relay for monitoring starting

Turn-signal flashers (pulse generators)
49  Input
49a Output
49b Output, second circuit
49c Output, third circuit

Starter control
50  Starter control (direct)
50a Series-parallel battery switch - Output for starter control
50b with parallel operation of two starters with sequential control
    Starting relay for sequential  control of the engagement current
    during parallel operation of two starters
50c Input at starting relay for starter I
50d Input at starting relay for starter II
50e Start-locking relay Input  50f Start-locking relay Output
50g Start-repeating relay Input  50h Start-repeating relay Output

Wiper motors
53  Wiper motor, input (+)
53a Wiper (+), self-parking switch-off
53b Wiper (shunt winding)
53c Electric windshield-washer pump
53e Wiper (brake winding)
53I Wiper motor with permanent magnet and third brush
    (for higher speed)

55  Fog lamp
56  Headlamp
56a High beam, high-beam indicator lamp
56b Low beam
56d Headlamp-flasher contact
57a Parking lamp
57L Parking lamp, left
57R Parking lamp, right
58  Side-marker, tail, license plate, and instrument panel lamps
58L License-plate lamp, left
58R License-plate lamp, right

Alternators and voltage regulators
61  Alternator charge-indicator lamp
B+  Battery positive
B-  Battery negative
D+  Dynamo positive
D-  Dynamo negative
DF  Dynamo field
DF1 Dynamo field 1
DF2 Dynamo field 2
U,V,W Alternator terminals

75  Radio, cigarette lighter
76  Speakers

Break contact (NC) and changeover switches
81  Input
81a Output 1, NC side
81b Output 2, NC side

Make contact (NO) switches
82  Input
82a Output 1
82b Output 2
82z Input 1
82y Input 2

Multiple-position switches
83  Input
83a Output, position 1
83b Output, position 2
83L Output, left-hand position
83R Output, right-hand position

Current relays
84  Input, actuator and relay contact
84a Output, actuator
84a     Output, relay contact

Switching relays
85  Output, actuator (end of winding to ground or negative)
86  Input, actuator (start of winding)
86a Start of winding or 1st winding
86b Winding tap or 2nd winding

Relay contact for break (NC) and changeover contacts
87  Input
87a Output 1 (NC side)
87b Output 2
87c Output 3
87z Input 1
87y Input 2
87x Input 3

Relay contact for make (NO) contact and changeover contacts
88  Input
88a Output 1
88b Output 2
88c Output 3
88z Input 1
88y Input 2
88x Input 3

Directional signals (turn signal flashers)
C   Indicator lamp 1
C2  Indicator lamp 2
C0  Main terminal connection for separate indicator circuits
    actuated by the turn signal switch
C3  Indicator lamp 3 (e.g., when towing two trailers)
L   Turn-signal lamps, left
R   Turn-signal lamps, right

 Phil Payne
 Phone: 0385 302803   Fax: 01536 723021
 (The contents of this post will _NOT_ appear in the UK Newsletter.)